OSHA 10 Hour
What is the most effective method for cleaning lead-contaminated clothing?
Washing Washing is the most effective method for cleaning lead-contaminated clothing.
Hazards related to the construction of masonry walls can be reduced by taking all these OSHA-recommended measures EXCEPT:
Install wire-mesh barriers at the top of the structure to catch falling debris Only essential workers should be allowed near masonry wall construction. To enforce this, set up a limited access zone around operations. Additionally, be sure to have concrete structures checked by qualified persons before placing loads and adequately shore or brace structures until they are permanently supported.
It is necessary for employers to provide personal protective equipment to employees if any of these conditions exist EXCEPT:
It is necessary for employers to provide personal protective equipment and safety training to employees.
When is climbing scaffolding cross-braces permitted?
It is strictly prohibited
Which ladders are NOT covered by the OSHA standards for stairways and ladders?
Ladders that are purposely manufactured for scaffold access and egress Ladders that are purposely manufactured for scaffolds access and egress are not covered by the OSHA standards for stairways and ladders.
Flywheels must be guarded by both rails and toeboards if they are:
Located within a pit Any part of the flywheel that extends through the working floor must be completely enclosed or surrounded by a guardrail and toeboard.
The coupler in a tube and coupler scaffold is used to _____ the tubes.
Lock A coupler is a device that locks the tubes of a tube and coupler scaffold together.
Which one of the following PPE items does not need to be purchased by the employer?
Long-sleeved shirts for outside, winter work Long-sleeved shirts for outside winter work do not have to be purchased by the employer.
What must be done with a damaged portable ladder?
Mark it as defective and tag it DO NOT USE A competent person must inspect ladders for visible defects like broken or missing rungs. If a defective ladder is found, it must be immediately marked as defective, or tagged DO NOT USE, and removed from the jobsite immediately.
Damage to the liver, kidneys, blood, and spleen and even cancer can be caused by long-term (chronic) overexposure to which of the following hazardous substances?
Methylenedianiline (MDA) Long-term (chronic) overexposure to MDA may cause cancer as well as damage to the liver, kidneys, blood, and spleen. Short-term (acute) contact with MDA may irritate the skin, eyes, and mucous membranes, and sensitization to MDA may also occur.
The most important fall protection a worker can receive from an employer the first day on the job is:
New-hire orientation As the case study dramatizes, safety measures must be implemented in the order in which they will protect workers best, and training is always the first step in protecting workers.
Employers are required to post which of the following warning signs in areas where lead exposure is above the permissible limit?
No smoking or eating Where lead exposure is above the permissible limit, warning signs prohibiting smoking and eating shall be posted.
When there is a break in an electric tool's insulation or wiring, the tool's metal parts may become _____.
Not Oxidized
If the top edge of a stair rail system is serving as a handrail, how high must it be when measured from the upper handrail surface to the tread?
Not be higher than 37 inches nor less than 36 inches A top edge of a stair rail system serving as a handrail must not be higher than 37 inches nor less than 36 inches when measured from the upper handrail surface to the tread.
What does OSHA stand for?
Occupational Safety and Health Administration
Where may warning labels be placed on ladders?
On the outside face of one side rail Warning labels may be placed on the outside face of one side rail.
Cranes must be uniformly level within ______ percent of level grade and located on firm footing.
One The crane must be uniformly level within one percent of level grade and located on firm footing.
Based on specific OSHA definitions of workers and their roles, every person working at a construction job site should be _____.
Only authorized personnel are allowed to perform work at construction job sites.
A crane's mobility and safety during lifting operations are governed by the interplay of all these principles EXCEPT:
Operator skill The four basic lifting principles that govern a crane's mobility and safety during lifting operations are the center of gravity, leverage, structural integrity and stability.
Employees using hand and power tools are best protected from hazards by employer-provided _____.
PPE Employer-provided PPE offers the best protection against hazards to employees working with hand and power tools.
The skull and crossbones symbol represents a _____ material.
Poisonous
The skull and crossbones symbol represents a _____ material.
Poisonous Poisonous material is represented by a skull and crossbones symbol.
Which one of these hand-held power tools may be equipped with a lock-on power switch?
Reciprocating saw Circular saws, chainsaws, and percussion tools must be equipped with a constant pressure switch that will shut off when the pressure is released. Reciprocating saws, must be equipped with a momentary contact "off" switch and may have a lock-on provided that they can be turned off by a single motion of the same finger that turned them on.
Power tools must be fitted with guards and _____.
Safety switches
A personal protective equipment program includes all these PPE procedures EXCEPT:
repairing A personal protective equipment program includes the procedure for assessing the workplace for hazards, identification of needed PPE, the procedure for selecting PPE, the procedure for providing PPE, and the procedure for using PPE.
When not in use, hand-held electric power tools should be _____.
unplugged Hand-held electric power tools should always be disconnected when not in use to prevent shock or fire hazards.
What is the maximum weight load for a single-point adjustable scaffold?
250 lbs A non-mandatory directive from OSHA states that the maximum weight load for a single-point adjustable scaffold should not exceed 250 pounds unless the scaffold has been designed with an increased load capacity in mind.
What must be provided where doors or gates open directly onto a stairway?
A platform OSHA Standards state that a platform must be provided where doors or gates open directly onto a stairway.
Safety programs should contain all these elements EXCEPT
A safety program should not contain any reference to increased exposure to build endurance, since this poses a threat to the safety and health of workers.
Body belts have been prohibited by OSHA because they _____.
Cause internal injuries Body belts have been found to cause internal injuries when used to arrest falls. Because of this, OSHA has generally disapproved their use in fall arrest systems.
What hazard will rubber gloves protect the hand from?
Chemical resistance Chemical-resistant gloves are made with different kinds of rubber: natural, butyl, neoprene, nitrile and fluorocarbon (viton); or various kinds of plastic: polyvinyl chloride (PVC), polyvinyl alcohol and polyethylene. These materials can be blended or laminated for better performance. As a general rule, the thicker the glove material, the greater the chemical resistance but thick gloves may impair grip and dexterity, having a negative impact on safety.
Which class of protective hat provides high-voltage protection and is used by electrical workers?
Class E Class E protective hats provide high-voltage protection and are used by electrical workers.
Although all elements comprising a hazard warning label are important, the LEAST important element is the label's _____.
Color A hazard warning label may contain words, pictures, symbols, or any combination thereof which convey the specific physical and health hazard(s), including target organ effects of the chemical(s) in the container(s).
On jobs where workers will be exposed to fall hazards, who is required by OSHA to conduct employee training?
Competent person All employees exposed to fall hazards must receive training by a competent person who addresses: the nature of fall hazards in the work area; use and operation of fall arrest equipment; and procedures for erecting, maintaining, disassembling and inspecting fall protection systems to be used.
According to OSHA, nearly 45 percent of crane-related accidents are caused by:
Contact with energized power lines
Neoprene or nitrile boots are often required to prevent penetration when an employee is working with _____.
Corrosives Neoprene or nitrile boots are often required to prevent penetration when an employee is working with corrosives, caustics, cutting oils, or petroleum products.
What type of burns are the result of current flowing through and exiting the body?
Electrical Electrical burns are the result of an electrical current entering and exiting the body.
As part of a written plan for emergency operations, the employer must identify _____ at a construction site before construction operations begin.
Emergency escape routes
Concerning the identification and control of worksite hazards, which one of these statements is FALSE?
Enforcement procedures must be defined by law enforcement.
Which one of these tasks would be best to complete first before ever driving a crane to the jobsite?
Ensure proper maintenance and inspections of the crane While all tasks are critical to safe crane operation, a crane that has not been inspected by a competent person and that has had all maintenance performed regularly should not be used.
Which gloves are generally used to improve grip when handling slippery objects?
Fabric Gloves Fabric gloves are made of cotton or fabric blends and are generally used to improve grip when handling slippery objects. They also help insulate hands from mild heat or cold.
When going up or down a ladder, workers should do all of the following EXCEPT:
Face away from the ladder
More people on construction job sites are killed by _____ hazards than any other cause.
Falls Falls are the leading fatality-causing hazard in the construction industry.
What is an acceptable alternative to installing an audible back-up alarm?
Flaggers The presence of flaggers is the only acceptable alternative to installing an audible back-up alarm.
Which one of the following circuit interrupts is most effective at preventing major shocks?
GFCI
If electrical hand tools are equipped with a three-pronged power cord with one wire going to ground, the operator must be protected from electric shock by:
GFCI A ground fault circuit interruptor must be used with all electrical tools to prevent shock in case of a short circuit, or flaw in the tool if the tool is not double insulated by the manufacturer.
Which one of the following circuit interrupts is most effective at preventing major shocks?
GFCI GFCI is the right answer because others cannot shut down electricity immediately.
An emergency action plan should contain all these elements EXCEPT:
General job duties for each employee after the "all clear is sounded" An emergency action plan does not have to include general job duties for each employee after the all clear is sounded.
Mixtures, fuels, solvents, paints, and dusts are all considered to be _____ materials.
Hazardous Per OSHA, hazardous materials include mixtures, fuels, solvents, paints, and dusts.
Which one of the following is NOT considered to be a crane-related hazard?
Hoisting personnel on a platform According to OSHA, hoisting personnel on a platform is NOT considered to be a crane-related hazard.
All these shafts must be securely held in position against endwise thrust EXCEPT:
Horizontal Each continuous line of shafting must be secured in position against excessive endwise movement. Inclined and vertical shafts, particularly inclined idler shafts, have to be securely held in position against endwise.
Face shields DO NOT protect the face from _____.
Impacts Impacts are not protected against when using a face shield.
What option do employers have when conventional fall protection systems are not feasible and might even put workers at risk?
Implement a Fall Protection Plan A Fall Protection Plan must be put in place when conventional fall protection systems are not feasible or might put workers at risk.
Safety programs should contain all these elements EXCEPT:
Increase exposure to build endurance A safety program should not contain any reference to increased exposure to build endurance, since this poses a threat to the safety and health of workers.
The gaps between planks on the platforms of supported scaffolds should not exceed _____.
1 inch The gaps between planks on the platforms of supported scaffolds should not exceed 1 inch to prevent injuries.
A worker should always position a ladder at an angle where the horizontal distance from the top support to the foot of the ladder is _____ the working length of the ladder.
1/4 OSHA requires that workers should always position a ladder at an angle where the horizontal distance from the top support to the foot of the ladder is 1/4 the working length of the ladder.
To prevent jamming, the distance between the work rest and grinder wheel should not exceed _____.
1/4 Regarding abrasive wheel work rests, keep work rests not more than 1/8th inch from wheel surface, and tongue guards at the top of the wheel not more than 1/4 inch from wheel surface. This prevents jamming the work between the wheel and the rest, which may cause the wheel to break.
For a six-foot drop, the best shock-absorbing lanyards will lower the arresting forces on a worker during a fall to about _____ pounds.
1260 The best shock-absorbing lanyards will lower the arresting forces on a worker during a fall to about 1,260 pounds for a six-foot drop, which is half the maximum required by OSHA. The lower the arresting forces, the less the impact is on the worker's body.
Raul's supervisor tells him to construct a schedule 40 pipe guardrail around at the leading edge of the top floor. If the length of the edge is 96', how many upright posts must Raul use to comply with OSHA's minimum requirements?
13 For pipe railings, posts, top rails, and intermediate railings shall be at least one and one-half inches nominal diameter (schedule 40 pipe) with posts spaced not more than 8 feet (2.4 m) apart on centers. Counting the corners, Raul needs 13 posts.
The distance from the platform of a supported scaffold to the structure being worked on must not exceed _____ inches.
14 The platform of a supported scaffold should be no more than 14 inches from the structure being worked on.
The mid-rails of guardrails must be capable of withstanding how many pounds of force applied at any point, in any direction?
150 The mid-rails of guardrails must be capable of withstanding 150 pounds of force applied at any point, in any direction.
Employers must provide a stairway or a ladder at points of access where the elevation between two steps is _____ inches or more.
19 According to OSHA employers must provide a stairway or a ladder at points of access where the elevation between two steps is 19 inches or more.
Positioning devices must be rigged such that an employee cannot free fall more than _____ feet.
2
Positioning devices must be rigged such that an employee cannot free fall more than _____ feet.
2 Positioning devices shall be rigged such that an employee cannot free fall more than 2 feet (.9 m).
A worker who is not using fall arrest protection loses his footing at the top of a six-story building, calls for help, and then falls. If his coworkers on the ground hear his cry, how much time do they have to take measures to break his fall?
2 seconds It only takes 2 seconds for a worker to reach the ground from a height of six stories. Always use fall protection when working in elevated places.
Platforms in ladder jack scaffolds must be no higher than _____ feet.
20 The maximum height at which a platform can be placed in a ladder jack scaffold is 20 feet from the supported base.
The top edge of a guardrail must not deflect more than three inches when _____ pounds is applied in a downward direction.
200 OSHA standards require that the top edge of a guardrail must not deflect more than three inches when 200 pounds is applied in a downward direction.
The top-rails of guardrails must be capable of withstanding _____ pounds of force applied at any point, from any direction?
200 Top-rails of guardrails must be capable of withstanding up to 200 pounds of force applied at any point and from any direction.
Handrails and top rails must be capable of withstanding a load of _____ pounds.
200 OSHA Standards require that handrails and guardrails must withstand 200 pounds or more.
If a mobile scaffold is to be moved, if the ground is not within _____ degrees of level, it must be disassembled before moving.
3 Before moving a mobile scaffold, workers must be sure the ground is within three degrees of level to avert any risk of the scaffold tipping over.
The clearance of temporary handrails must be at least _____ inches between the handrail and walls.
3 Handrails and stair rails are used to protect workers from falling when using stairways. The clearance of temporary handrails must be at least three inches between the handrail and walls, stair rail systems, and other objects.
When portable ladders are used to access an upper landing surface, how far must the ladder side rails extend above the upper landing surface?
3 feet When portable ladders are used to access an upper landing surface, the side rails must extend at least three feet above the upper landing surface. When such an extension is not possible, the ladder must be secured, and a grasping device such as a grab rail must be provided to assist workers in mounting and dismounting the ladder.
If they discover important new information about a chemical's hazards, manufacturers or importers of hazardous chemicals must update the chemical's Material Safety Data Sheet within _____ months.
3 months
Workers who use compressed air for cleaning should limit pressure to _____ PSI.
30 For safe cleaning or dusting of clothing with compressed air the p.s.i. setting must not exceed 30 p.s.i.
Compressed air may be used for cleaning only if it is reduced to _____ P.S.I.
30 For safe cleaning or dusting of clothing with compressed air, the p.s.i. setting must not exceed 30 p.s.i.
Stairways with four or more risers, or that are higher than _____ inches, must be equipped with at least one handrail.
30 Handrails must be provided for all stairways that have four or more risers, or are higher than 30 inches. If there is a fall hazard of six feet or more on an exposed side of the stairs, then a stair rail system must be provided to prevent workers from falling off the side.
Safety nets must never be installed more than _____ feet under walking/working surfaces.
30 Safety nets must be installed at 30 feet or less to prevent fall injuries.
At a minimum, how many days per year must workers perform Class I, Class II, or Class III asbestos work before their employers are required to provide for medical examinations?
30 Employers of workers performing 30 days or more a year of Class I, Class II, and Class III asbestos work are required to provide medical examinations for their employees.
Stairways must be between _____ degrees from the horizontal.
30 and 50 Stairways must be between 30 and 50 degrees from the horizontal.
When stairways are not a part of the permanent structure, what are the dimension requirements for stairway landings?
30 inches deep, 22 inches wide, at every 12 feet or less of vertical rise When stairways are not a permanent part of the structure, the stairway landing must be at least 30 inches deep and 22 inches wide, at every 12 feet or less of vertical rise.
Anchorage for positioning devices must limit free falls to two feet and be capable of supporting a potential impact load of _____ pounds.
3000 Anchorage for positioning devices must support a potential impact load of 3000 pounds and limit free falls to two feet.
Warning lines must be rigged and supported so that the lowest point (including sag) is never less than _____ inches from the walking/working surface.
34" According to OSHA, warning lines must be rigged and supported so that the lowest point (including sag) is never less than 34 inches from the walking/working surface.
The platform in a two-point scaffold should be no more than _____ inches wide.
36 According to OSHA, the platform in a two-point scaffold should be no more than 36 inches wide.
Portable ladders must be able to withstand ____ times their maximum load.
4 Portable ladders must be able to withstand four times their maximum load.
When safety nets are required, they must be drop-tested using a 28-32 inch-diameter bag of sand weighing no less than _____ pounds.
400 Drop-tests must consist of a 400-pound bag of sand 28-32 inches in diameter being dropped into the net from the highest working or walking surface, but not from less than 42 inches above that level.
Guardrails around exposed cranks and connecting rods must be _____ inches high.
42 The guardrail used must be 42 inches (or 106.68 centimeters) in height, with mid-rail between top rail and floor.
Never allow workers to enter an unprotected trench that is _____ feet or deeper unless an adequate protective system is in place.
5 Never allow workers to enter an unprotected trench that is 5 feet or deeper unless an adequate protective system is in place. Always follow your employer's safety policies.
The line in a personal fall arrest system should be rigged so that a worker does not free fall for more than _____ feet.
6 The line in a personal fall arrest system should be rigged so that a worker does not free fall for more than six feet and does not come into contact with any surface.
Workers who use ladders higher than _____ feet must receive training on how to inspect ladders and use them properly.
6 Workers who use ladders higher than six feet must receive training on how to inspect ladders and use them properly.
In the absence of a guardrail system, workers who work at heights exceeding _____ feet must use personal fall arrest systems.
6 Workers who work at heights exceeding six feet are required to wear personal fall arrest systems in the absence of a guardrail system.
William is directed by his supervisor to install safety nets, and warns him to be sure he follows OSHA guidelines for mesh size. If William goes finds four rolls of netting in the equipment shed with different mesh sizes, which mesh size should he use?
6"x6" OSHA Standards require that safety nets do not have openings greater than 6 x 6.
OSHA's analysis of crane accidents in general industry and construction identified an average of _____ fatalities per year.
71 OSHA's analysis of crane accidents in general industry and construction identified an average of 71 fatalities per year.
OSHA estimates that ______ percent of struck-by fatalities involve heavy equipment like trucks or cranes.
75 OSHA estimates that 75 percent of struck-by fatalities involve heavy equipment like trucks or cranes. Always pay attention to your surroundings. Do not assume you have been seen by an operator.
The current permissible noise exposure limit for the construction industry is _____ decibels per 8-hour duration.
90 90db's is the current permissible noise exposure limit per 8-hour duration for the construction industry.
The decontamination area for MDA-exposed workers, materials, and equipment must include all of the following EXCEPT:
A medical examination area A medical examination area is not required in a decontamination area for MDA-exposed workers, materials, and equipment.
If a worker is using a ladder near energized electrical equipment or power lines, from what should its side rails be made?
A noncoductive material All ladders should be made of a non-conductive material, such as fiberglass, when using the ladder near energized electrical equipment or power lines.
According to the Hazard Communication Standard, all these objects are recognized containers for hazardous materials EXCEPT:
A pipe A container may be any bag, barrel, bottle, box, can, cylinder, drum, reaction vessel, storage tank, or the like that contains a hazardous chemical. For the purposes of the HCS, pipes or piping systems, engines, fuel tanks, or other operating systems in a vehicle are not considered to be containers.
What is a scaffold?
A temporary elevated platform used to support workers and/or materials A scaffold is considered a temporary elevated platform used to support workers and/or materials.
Blade guards for both radial and circular table saws must automatically:
Adjust to the thickness of the stock Blade guards must automatically adjust to the thickness of the stock of the material being processed.
Who is covered by the OSH Act?
All workers and their employers under federal government authority
The minimum general safety requirements for machines include all these safeguards EXCEPT:
Allow automatic start-up after power failures Allowing automatic start-up of machines after power failure is not part of a general safety requirement, and may cause severe injuries.
Which one of these workers must be provided with an OSHA-required fall prevention system?
An employee is installing a leading edge on a third floor balcony cover Each employee who is constructing a leading edge 6 feet (1.8 meters) or more above lower levels shall be protected by guardrail systems, safety net systems, or personal fall arrest systems.
Employee exposure to short term exposure limits are determined by _____ samples.
Breathing zone air Determination of employee exposure to the STEL must be made from breathing zone air samples collected over a 15-minute sampling period.
According to statistics, what is the most common electricity-related direct injury?
Burns The most common electricity-related injury is a burn. They occur when a person touches electrical wiring or equipment that is improperly used or maintained.
How is a float scaffold supported?
By two bearers hung from an overhead support Float scaffolds are supported by two bearers hung from an overhead support.
How is a needle beam scaffold supported?
By two needle beams hung from ropes In a needle beam scaffold, the platform (usually a simple wooden board) is supported by two needle beams which are hung from ropes. The other end of the platform is usually supported on the edge of a permanent structure.
Chris is part of her contractor's renovation crew, and it is her job to install safety measures to protect her coworkers from tools falling through holes in the floor and debris being thrown into Dumpsters from upper story windows. Which one of these measures would be LEAST effective for Chris to use?
Canopies above the dumpsters When employees are exposed to falling objects, the employer must have employees wear hardhats and implement one of the following measures that include toeboards, screens, a canopy structure, or guardrail systems to prevent objects from falling from higher levels. Also, the areas into which objects could or will fall should be barricaded to prohibit employees from entering the barricaded area.
Willard is cutting rafters at a residential construction site. What method should he be using to secure the boards as he cuts them?
Clamp the boards to a cutting surface, such as a table or saw horses When using hand-held power tools, workers should secure the work with clamps or a vice, freeing both hands to operate the tool.
Employees needing protection from falling objects and high-voltage electric (20,000V) shock and burns should wear _____ hardhats.
Class E Class E hard hats protect against falling objects and high-voltage electric (20,000V) shock and burns. Class G hard hats provide good impact protection but limited voltage protection (2200 V) and are mainly used in general service (such as building construction, shipbuilding, and lumbering). Class C hard hats are designed for comfort. They protect against bumps from fixed objects, but do not protect against falling objects or electrical shock.
Which one of these factors is LEAST significant when selecting eye protection equipment?
Cost Cost should be the least significant factor when selecting proper eye protection equipment.
A boom angle indicator, clearly visible to the operator, is required on all of the following equipment EXCEPT:
Cranes with fixed-length and angle booms Cranes and derricks that have variable angle booms, and cranes with telescoping booms, should be equipped with a boom angle indicator that is clearly visible to the operator.
Employers have all these responsibilities EXCEPT:
Designing PPE Employers must assess their workplaces for potential hazards, provide personal protective equipment to all of their exposed employees, determine when to use PPE, and provide proper instructions and training to their employees about PPE and its use. Employees should use PPE according to the instructions provided and inspect/maintain PPE on a daily basis so that it will remain in good working condition.
Which of the following information is NOT included in a Material Safety Data Sheet?
Disposal procedures The following information must be included in an MSDS: identity (name of the substance), physical hazards (target organ), health hazards, routes of body entry, permissible exposure limits (PEL), carcinogenic factors, safe-handling procedures, date of sheet preparation, control measures (PPE), emergency first aid procedures (emergency telephone number), and contact information for the preparer of the sheet.
Recommended protective clothing and equipment for MDA-exposed workers may include any of the following EXCEPT:
Earplugs Ear plugs are not one of the recommended clothing items or equipment for MDA-exposed workers.
Employers of workers exposed to falling six feet or more from an unprotected side or edge are required by OSHA to provide at least one of these safety systems EXCEPT:
Edge-work training If an employee is exposed to falling 6 feet (1.8 meters) or more from an unprotected side or edge, the employer must provide a guardrail system, safety net system, or personal fall arrest system to protect the worker.
Machinery with rotating or reciprocating parts that are within seven feet of the floor or working platform requires what additional equipment?
Effective Guards Effective guards shall be in place for machinery with rotating or reciprocating parts that are within seven feet of the floor or with a working platform.
When struck-by and caught-between hazards are high, in order to decrease the risk of worker injury, only _____ personnel should be allowed in the hazardous area.
Essential To decrease the risk of worker injury when struck-by and caught-between hazards are high, only essential personnel should be allowed in the hazardous area.
Head injuries are commonly caused by:
Falling objects Some common causes of head injuries are falling objects (such as tools, equipment), bumping heads against objects (such as pipes, beams), and contact with exposed and energized electrical wiring and components.
Toe board or mesh fencing installed on scaffolding protects workers below the scaffolding from what hazards?
Falling objects Toe board or mesh fencing installed on scaffolding protects workers below the scaffolding from falling objects such as hammers, nails, etc.
What essential construction protective device presents the greatest risk for causing a caught in between hazard?
Guardrail Guardrail requirements can actually create a hazard at the leading edge of installed floor or roof sections by creating the potential for employees to be caught in between guardrails and suspended loads.
Under certain circumstances, which one of these engineering controls can create a caught-between hazard?
Guardrails Guardrails in certain situations have been known to cause caught-between hazards.
Power tools must be fitted with _____ and safety switches.
Guards Power tools must be fitted with guards and safety switches because they are extremely hazardous when used improperly.
As minimum protection, employers must provide employees exposed to falling objects with ______ and require them to be worn.
Hardhats Hardhats must be worn at all times when exposed to falling objects, since not wearing a hardhat has contributed to a lot of deaths in the construction industry.
Body protection includes all this equipment EXCEPT:
Hardhats The main types of body protection are vests, aprons, jackets, coveralls, and full body suits.
To protect workers from shock, electrical power tools must either be double insulated and:
Have a three-wire cord with one cord going to ground To protect a worker from shock, electrical power tools must have a three-wire cord plugged into a grounded receptacle or be double insulated.
A worker comes in contact with live electrical parts and is shocked but receives no major injuries. What would be the MOST LIKELY reason he suffered no electricity-related injuries?
He was wearing nonconductive safety shoes The worker did not suffer any major injuries because he was wearing nonconductive safety shoes.
Because conventional fall protection equipment can create greater hazards for certain workers, the fall protection plan option is available for all these jobs EXCEPT:
High steel The fall protection plan option is available only to employees engaged in leading edge work, precast concrete erection work, or residential construction work who can demonstrate that it is infeasible or it creates a greater hazard to use conventional fall protection equipment.
A catwalk built over the lower run of a horizontal belt may be guarded on both sides by any of these guards EXCEPT:
Horizontal railings filled with Perforated sheet metal A platform can be provided over the lower run of horizontal belts and must be guarded on either side by a railing completely filled in with wire mesh or other filler, or by a solid barrier.
Training for employees exposed to hazardous chemicals must include all of the following EXCEPT:
How to dispose of chemicals after use How to dispose of chemicals after use is not part of the training requirements for employees exposed to hazardous chemicals.
Gloves can be used to protect hands and arms from all of the following hazards EXCEPT:
Impacts Most accidents involving hands and arms can be classified under four main hazard categories: chemicals, abrasions, cutting, and heat. There are gloves available that can protect workers from any of these individual hazards or any combination thereof.
Why must abrasive grinding wheels be inspected carefully and the spindle speed checked before mounting?
Improperly mounted and used wheels can explode and cause injury Abrasive grinding wheels must be inspected carefully and the spindle speed checked before mounting to avoid improper mounting and to prevent the exploding of used wheels that may cause an injury.
For what application(s) can ladders having a pitch in excess of 90 degrees from the horizontal be used?
In the conical sections of manholes For example, in conical sections of manholes, ladders having a pitch in excess of 90 degrees from the horizontal can be used.
An outrigger is the structural member of a supported scaffold used to perform what function?
Increase its base width The purpose of an outrigger as the structural member of a supported scaffold is to increase the base width of the scaffold.
Lead most commonly enters the body through _____.
Inhalation Lead is most commonly absorbed into the body by inhalation. When workers breathe in lead as a dust, fume, or mist, their lungs and upper respiratory tract absorb the lead into the body.
Disabling or fatal diseases such as gastrointestinal cancer can result from exposure to asbestos by _____ the loose fibers.
Inhaling Exposure by inhaling loose asbestos fibers can cause disabling or fatal diseases such as gastrointestinal cancer, cancers of the lung or lung-cavity lining, and the severe lung impairment asbestosis. The symptoms of these diseases generally do not appear for 20 or more years after initial exposure.
When is climbing cross-braces permitted?
It is strictly prohibited Climbing cross-braces on scaffolds is strictly prohibited. Only use the ladder system provided in scaffolds.
Which statement BEST describes a catenary scaffold?
It is usually construction on-site from materials on hand A catenary scaffold consists of a number of horizontal and parallel ropes that are used to support a platform. They are usually used in buildings still under construction and are constructed on-site, as needed, with easily found construction materials.
Operators of powder-actuated tools should follow all these safety tips EXCEPT:
Keep tool loaded at all times Regarding the use of power-actuated tools, keep the barrel of the tool free from obstructions, never point the tool at anyone, store unloaded tools in a locked box, and do not load the tool unless it will be used immediately.
Crane-related hazards typically arise from one or all of these conditions EXCEPT:
Lighting The following are examples of various crane hazards: improper load rating, excessive speeds, no hand signals, inadequate inspection and maintenance, unguarded parts, unguarded swing radius, working too close to power lines, improper exhaust system, shattered windows, no steps, guardrails or walkways, no boom angle indicator, and not using outriggers.
Which one of these workplace conditions DOES NOT require employers to provide foot protection to their employees?
Loose terrain that might cause slipping Employers are not required to provide foot protection around loose terrain that might cause slipping.
A multi-point adjustable scaffold must be supported by _____ ropes.
More than two Multi-point adjustable scaffolds must be supported by more than two ropes. Normally, four ropes are used, one secured at each corner of the platform.
Which type of gloves protect against solvents, harsh chemicals, fats, and petroleum products?
Nitrile Nitrile gloves protect against solvents, harsh chemicals, fats, and petroleum products.
What must employers provide for those workers who are subject to 15 or more days of dermal exposure to MDA?
No-cost-to-employee medical surveillance program under the supervision of a licensed physician A no-cost-to-employee medical surveillance program under the supervision of a licensed physician is required of employers with workers who are subject to 15 or more days of dermal exposure to MDA.
All of the following are sources of potential injuries EXCEPT:
Objects that fall from above Sources of potential injuries include objects that might fall from above, exposed pipes or beams at work level, exposed liquid chemicals, sources of heat, intense light, noise, or dust, and equipment or materials that could produce flying particles.
Before a crane lifting operation begins, all these guidelines should be implemented EXCEPT:
Open swing radius to allow free movement Follow the listed safety guidelines before initial start up: Level the crane and ensure support surface is firm and able to support the load; contact power line owners and determine precautions; know the location and voltage of overhead power lines; know the basic crane capacities, limitations, job site restrictions; make other personnel aware of hoisting activities; barricade areas within the swing radius; ensure proper maintenance and inspection, and determine safe areas to store materials and place machinery.
Protective eyeglasses provide eye protection from _____.
Particles Protective eyeglasses are made with safety frames, tempered glass, or plastic lenses. Temple and side shields provide eye protection from moderate impact and particles encountered in job tasks such as carpentry, woodworking, grinding, scaling, etc. Safety glasses are also available in prescription form for those persons who need corrective lenses.
A pump jack scaffold must be fitted with two ______ gripping mechanisms to prevent slippage.
Positive According to OSHA Standards, a pump jack scaffold must be fitted with two positive gripping mechanisms to prevent slippage.
In order to decrease the risk of accidents and injuries in the workplace, employers should provide frequent and regular inspections of all these areas EXCEPT:
Procedures for doing the job
Electric tool cords can be damaged by all of the following actions EXCEPT:
Removing frayed cords from use To avoid damaging electrical cords , workers should not use electrical cords to carry, hoist, or lower tools; yank cords or hoses to disconnect them; and should always keep cords and hoses away from heat, oil, and sharp edges. If a cord becomes frayed, the tool should be removed from use.
Although all this PPE is recommended, which one is required when using pneumatic tools and/or compressed air for cleaning?
Safety Glasses The manufacturer's safe operating pressure for hoses, pipes, valves, filters, and other fittings shall not be exceeded. Eye protection should be worn while operating pneumatic tools.
Windows in a crane cab must be made of _____ that prevents distortion.
Safety glass Crane cab windshields must be made of manufacturer approved safety glass that can withstand distortion.
When the height of workplaces exceeds 30 feet above ground, what safety device must be provided for workers?
Safety nets Safety nets must be provided to workers exposed to fall hazards of 30 feet or more.
Which of the following is NOT an engineering control?
Sanitation If an employee's exposure to a potential hazard can be prevented through a physical change in the work environment, then the hazard can be eliminated with an engineering control. Engineering controls consist of substitutions of tools or equipment, barriers, ventilation, and equipment modifications.
To guard the nip points, cone belt and pulley systems must be equipped with a belt _____.
Shifter To guard the nip point of the belt and pulley, the cone belt and pulley must be equipped with a belt shifter.
On what kind of surface should a single-rail ladder be used?
Single-rail ladders should not be used. Ladders should be used only on stable and level surfaces unless secured to prevent their accidental displacement. Non-self-supporting ladders should not be used on slippery surfaces unless secured or provided with slip-resistant feet to prevent accidental displacement. Single-rail ladders should not be used.
What is the best method for inspecting abrasive wheels for cracks?
Sound Before mounting, inspect closely for damage and perform a sound or ring-test to ensure that the wheel is free from cracks/defects.
In addition to physical safeguards on all machinery, what else must an effective safeguarding system include?
Specific and detailed training of workers To have an effective safeguarding system, specific and detailed training of workers must also be included.
Which parts of machines that use abrasive wheels must be protected by safety guards?
Spindle end, nut and flange projections Machines that use abrasive wheels must have safe guards that protect the spindle end, nut, and flange projections area to prevent injuries.
Which type of lanyards absorbs the least amount of force?
Synthetic webbing Types of lanyards include self-retracting (eliminates excess slack in the lanyard), shock absorbing (slows and eventually stops decent and absorbs the forces), synthetic rope (absorbs some force by stretching), and synthetic webbing (strong but not flexible; absorbs little force).
In which of the following situations can a flexible or extension cord be used?
TO cross an open area Flexible wiring should not be used where inspection would be difficult or where damage would be likely. Flexible cords must not be run through holes in walls, ceilings, or floors, run through doorways, windows, or similar openings (unless physically protected), or hidden in walls, ceilings, floors, conduit, or other raceways.
Job site inspections should focus on all these factors EXCEPT:
The Lunch Room
The label on every chemical container must contain all of the following information EXCEPT:
The chemical formula The label on every chemical container must contain the complete chemical name or names without abbreviations (the formula may be used as an option), a warning statement (symbol or message), conveying what the hazards are for the hazardous chemical, and the manufacturer's name, address, and contact information.
The rated load of a crane should not exceed the original capacity specified by _____.
The crane's manufacturer OSHA states that a crane's manufacturer rated load capacity should never be exceeded.
What is the working length of a ladder?
The distance between the foot and the top support The working length of a ladder is the distance between the foot and the top support.
Determining whether an employee is exposed to excessive noise considers all these factors EXCEPT:
The source of a noise The source of a noise is not considered as a factor for determining whether an employee is exposed to excessive noise.
Multi-point adjustable scaffolds may be bridged together only if:
They have been designed for that purpose Multi-point adjustable scaffolds should not be bridged together unless they have been designed to do so.
When overhead loads are being lowered into trenches, trench workers can be protected by _______.
Trench box Trench workers inside a trench box can be protected from overhead loads that are being lowered into trenches.
OSHA has approved sloping, shoring, and benching to be used as safety systems in which one of these jobs?
Trenching When working in trenches OSHA has approved sloping, shoring, and benching to be used as part of an effective safety system.
After a fall, a suspended worker must keep his arms and legs moving to keep circulation going and avoid Orthostatic Intolerance.
True
For a ladder to be considered in position and ready to use, its rungs and steps must be all of the following EXCEPT:
Uniformly spaced For a ladder to be considered in position and ready to use, its rungs and steps must be level and uniformly spaced. Ladder rungs and steps must not be spaced less than 10 inches apart or more than l4 inches apart, as measured between the centerlines of the rungs, cleats, or steps.
Willard is going on a 15-minute break after he cuts these last five rafters. What precaution should he take with his electric, hand-held crosscut saw before break?
Unplug it Disconnect tools when not in use, before servicing and cleaning, and when changing accessories.
An arc flash can occur where differences of potential _____ exists.
Voltage Arc flash and the resulting release of energy can only occur if an arc between two differences of potential (voltage reading) exists between any two phase conductors, or any phase conductor and a grounded part (for grounded systems only).
In order to protect their hands, when working with machines employees should NEVER:
Wear gloves around moving machinery To protect hands from injury due to contact with moving parts, it is important to ensure that guards are always in place and used, and that machines or tools are locked out and power is disconnected before making repairs. A worker should treat a machine without a guard as inoperative and not wear gloves around moving machinery, such as drill presses, mills, lathes, and grinders.
Although all these workers should wear eye protection, according to eye injury statistics, which one is MOST at risk of suffering an eye injury?
Welder Almost 70% of the accidents studied resulted from flying or falling objects or sparks striking the eye. Contact with chemicals caused 1/5 of the total eye injuries. More than 40% of injuries occurred among craft workers, like carpenters and plumbers. Eye protection is vital when dust and other flying particles (such as metal shavings or sawdust) are present, there is molten metal that may splash, there is intense light from welding and lasers, there are corrosive gases/vapors/liquids, or potentially hazardous materials (such as blood or hazardous liquid chemicals) may splash.
Mobile scaffolds are similar to frame scaffolds but are fitted with _____.
Wheels
When does electricity become hazardous to humans?
When it completes a circuit through the body When electricity completes a circuit through the body it causes hazardous effects on the body.
When is wire size an electrical hazard?
When its gauge is too small for the current it will carry Electrical hazards can occur when a wire with a small gauge is used for larger currents, as this can cause over heating and fires.
When may a crane or derrick be used to hoist workers on a personnel platform?
When the worksite cannot be accessed in any other way Employers and workers should know that using a derrick or crane to hoist workers on a personnel platform is prohibited. The only exception is when the conventional means of reaching a worksite such as a ladder, stairway, personnel hoist, scaffold, aerial lift, or elevating platform would be more dangerous or the design of the structure does not allow employees to access the area.
When may ladders or ladder sections be fastened together to provide a longer length?
When they are specifically designed for that purpose Ladders and ladder sections should not be tied or fastened together to provide longer length unless they are specifically designed for that purpose.
Which of the following color is used to display any other special symbols such as PPE or if the material is an oxidizing agent or is water reactive?
White The following colors may be used voluntarily to represent different types of hazards: blue for health hazards, red for flammable, yellow for reactivity, and white for an oxidizing agent or water-reactive material.
Rita's employer uses an AEGCP at each construction site. It is April 26, and as Rita gathers her power tool flexible cords to begin the day, she notices the inspector's tape is white. By the tape's color, Rita knows the cord was inspected at the beginning of _____.
White? When an assured equipment grounding conductor program is used to protect employees on construction sites, daily visual inspection for damage of equipment connected by cords and plugs before use must be conducted by a competent person. The color code divides the inspection system into subsequent quarters designated by white, green, red, and orange.
Work practice controls are a type of _____ control.
administrative A work practice control is a type of administrative control in which the employer modifies the manner in which employees perform their tasks and duties. Some work practice controls include changing work habits, improving sanitation, demonstrating good hygiene practices, and training.
How far apart must the side rails of portable ladders be?
at least 11.5 inches apart According to OSHA, the side rails of portable ladders must be at least 11.5 inches apart.
How far must ladder rungs be spaced from each other?
between 10 and 14 inches Ladder rungs must be spaced between 10 and 14 inches from each other.
Which one of the fall arrest systems must limit a worker from free falling to two feet?
body belt A body belt is a positioning system to limit a worker free fall to 2 feet.
According to OSHA records for the period 1995 to 1999, per yearly average, 362 construction workers died on the jobsite due to injuries received due to _____ hazards.
fall According to OSHA records, 362 construction workers died on the jobsite every year from 1995 to 1999 due to injuries received as a result of fall hazards.
Protective systems must be in place if workers will be entering trenches and excavations that are a minimum of _____ feet deep.
five Never allow workers to enter an unprotected trench (or excavation) that is five feet or deeper unless an adequate protective system is in place; in some cases, trenches less than five feet deep may also require such a system.
Personal protective equipment is the _____ level of protection
last PPE is considered the last level of protection.
How high must a handrail be when measured from the upper surface of the handrail to the tread?
not be higher than 37 inches nor less than 30 inches Normally, handrails must not be higher than 37 inches nor less than 30 inches when measured from the upper surface of the handrail to the surface of the tread. However, if the top edge of a stair rail system is serving as a handrail, it cannot be less than 36 inches, nor more than 37 inches, from the upper surface of the rail to the tread.
What measures must be taken when a ladder used to access an upper landing surface does not extend at least three feet above that surface?
the ladder must be secured at the top and a grasping device must be provided to assist workers with mounting and dismounting. When a ladder used to access an upper landing surface does not extend at least three feet above that surface, the ladder must be secured at the top and a grasping device must be provided to assist workers with mounting and dismounting.
If ground fault is detected, a GFCI shuts off electricity in _____ of a second.
1/40th If a ground fault is detected, a GFCI shuts off electricity in 1/40th of a second.
How soon must a manufacturer or importer of hazardous chemicals update the SDS, following new discoveries about the hazards of that chemical?
3 months It is necessary that manufacturers or importers of hazardous chemicals update SDSs within three months of discovering new important information about the checmical hazards.
How many years must employers keep accurate records of MDA monitoring measurements?
30 Employers must accurately keep records of MDA monitoring measurements for 30 years.
How many years must employers keep records of measurements monitoring employee exposure to asbestos?
30 Employers must keep records of measurements monitoring employee exposure to asbestos for 30 years.
Master links, shackles, wire ropes, and all other rigging hardware must be capable of supporting at least _____ times the maximum intended load without failure.
5 Master links, shackles, wire ropes and all other rigging hardware must be capable of supporting at least five times the maximum intended load without failure.
The need for electrical safety awareness is demonstrated by the fact that out of every 100 young workers who die on the job, _____ are killed by electricity.
5 More than five workers are electrocuted every week, and electricity causes 12 percent of young worker deaths in the workplace.
Of the burns caused by electricity, which type is the result of an explosion near the body that can generate heat up to four times hotter than the sun?
Arc Arc or flash burns result from high temperatures caused by an electric arc or explosion near the body which creates intense heat and may even cause an explosion. The heat generated can be up to six times the amount of heat produced from other thermal sources, such as flash fires. This type of injury requires attention immediately.
A worker on a jobsite is told by a supervisor to back a loaded truck into position for unloading, but the rear view is obstructed by the load. What is the worker's safest course of action?
Ask coworkers to be flaggers Improper operation of heavy vehicles poses a life-threatening danger to construction workers. Always station flaggers behind vehicles that have obstructed rear views.
During the course of construction, how frequently should combustible scrap and debris be removed?
At regular intervals
The workers most often exposed to lead on the job include all of the following EXCEPT:
Carpenters Workers potentially at risk for lead exposure include those involved in iron work, demolition work, painting, lead-based paint abatement, plumbing, heating and air conditioning maintenance and repair, electrical work, carpentry, renovation, and remodeling work. Plumbers, welders, and painters are among those workers most often exposed to lead.
OSHA required hazard communication training must include all of the following information EXCEPT:
Chemical hazard cost analysis A chemical hazard cost analysis is not a required part of hazard communication training.
_____ liquids are those that have a flashpoint at or above 100 degrees Fahrenheit.
Combustible Any liquids that have a flashpoint at or above 100 degrees Fahrenheit are considered combustible liquids.
Confined or enclosed spaces are purposefully designed to prevent:
Continuous Occupancy A confined space is purposefully designed to not allow continuous occupancy.
Which one of these hazards is NOT among OSHA's top four causes of construction site fatalities?
Explosions OSHA's Web site states that the top four causes of construction fatalities are a result of falls, struck by, caught in between, and electrocution.
Effective training of employees includes all of this information EXCEPT:
How to operate power tools in wet conditions Employers should train all employees to de-energize or drain electrical equipment before inspection or repair, keep all electrical equipment in good repair, follow lockout/tagout procedures, and never operate power tools in wet conditions.
Where are written hazard communication programs NOT required?
In workplaces where empoyees handle retail Written hazard communication programs are not required in the retail industry.
Health hazards can affect a body through all of the following routes of entry EXCEPT:
Infection "Infection" is not one of the recognized routes of entry through which a health hazard can affect the body.
Most crane-related accidents result from one of these causes EXCEPT:
Operators under the influence OSHA has identified the major causes of crane accidents to be boom or crane contact with energized power lines (nearly 45% of the cases); overturned cranes; dropped loads; boom collapse; crushing by the counter weight; outrigger use; falls; and rigging failures.
A chemical that will ignite spontaneously in air at a temperature of 130 degree Fahrenheit (54.4 degree Celsius) or below is identified by the term _____.
Pyrophoric Pyrophoric means a chemical that will ignite spontaneously in air at a temperature of 130 degree Fahrenheit (54.4 degree Celsius) or below.
For trench collapse prevention, OSHA has approved all these systems EXCEPT:
Railing Systems that are used to keep trenches from collapsing include sloping, shoring, benching, and trench shield systems.
What do Class I asbestos jobs involve?
Removal of surfacing asbestos-containing materials Class I asbestos jobs involve the removal of surfacing asbestos-containing materials.
Workers should not enter or leave a hoisted platform until it is _____ the structure where the work is to be performed.
Secured to Workers should not enter or leave a hoisted platform until the platform is secured to the structure where the work is to be performed.
Which one of the following methods MOST effectively protects machines, tools, and operators against damage from electrical current?
Service and equipment grounding
Explosive symbols are used to label materials that release great amounts of energy in all of the following forms EXCEPT:
Sound Materials that release a great deal of energy in the form of sound do not require explosive symbols for labeling.
Running ropes must be taken out of service if they have _____ broken wires in one strand in one lay.
Three In running ropes, with six randomly distributed broken wires in one lay or three broken wires in one strand in one lay.
In the event of exposure to hazardous conditions that cannot be eliminated, employers should require employees:
To wear appropriate PPE
What do tripped circuit breakers and blown fuses indicate?
Too much current in a circuit Tripped circuit breakers and blown fuses are clear indications of too much current in a circuit.
Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most effective?
Training Training is the most effective safety measure in the prevention of electrical shock.
Although OSHA created no symbols or specific color designations as part of its Hazard Communication Standard, whose hazard class symbol and color system does it endorse?
U.S. Department of Transportation OSHA endorses the U.S. Department of Transportation's hazard class symbols and color system for use in the Hazard Communication Standard.
Effective safety programs DO NOT require:
Union Oversight if the worksite is unionized Union oversight is not required in a safety program if the worksite is unionized.
Guardrail systems must be enclosed from the toeboard to mid-rail with expanded metal having openings no greater than _____ inch(es).
0.5 Guardrail systems must be enclosed from the toeboard to mid-rail with expanded metal having openings no greater than 0.5 inch.
Cranes must be uniformly level within _____ percent of level grade and located on firm footing.
1 OSHA Standards state that cranes must be uniformly level within 1 percent of level grade and located on firm footing.
Using an 8-hour time-weighted average, what is the permissible exposure limit to MDA?
10 ppb 10 ppb is the permissible exposure limit to MDA when using an 8-hour time-weighted average.
Safety nets must be installed no further than___feet under the walking/working surface on which employees are working.
30 Safety nets must be provided for workplaces that are more than 30 feet above the ground or water surface.
Exposure records and data analyses based on the exposure records are to be kept by employers for _____ years.
30 Years
How often must a thorough documented inspection of hoisting machinery be carried out by a competent person?
Annually A thorough documented inspection of hoisting machinery must be carried out by a competent person on an annual basis.
All these items are included in a regular crane inspection EXCEPT:
Boom Angle The following must be inspected on a regular basis: air pressure, tire inflation, clearance for rotating superstructure, wire rope wear, physical damage to the crane, loose or missing hardware or fasteners, and fluid leaks.
According to OSHA, most crane-related accidents (nearly 45 percent) are caused by:
Boom or crane contact with energized power lines OSHA has identified that boom or crane contact with energized power lines causes nearly 45 percent of all crane accidents.
The four basic lifting principles that govern a crane's mobility and safety during lifting operations are leverage, structural integrity, stability, and _____.
Center of gravity Center of gravity, leverage, structural integrity, and stability are the four basic lifting principles that govern a crane's mobility and safety during lifting operations.
Based on specific OSHA definitions of workers and their roles, job site inspections should be performed only by _____ persons.
Competent OSHA specifies that only a competent person should conduct inspections of a job site.
Personal protective equipment includes all these devices or clothing EXCEPT:
Container labels The devices or clothing used by workers to protect against hazards in the environment are called personal protective equipment (PPE). Some common examples of PPE are respirators, gloves, and chemical splash goggles.
Which of the following measures will NOT help protect employees from physical and health hazards?
Cost monitoring The following measures can protect you from physical and health hazards: safe work practices, product substitution, engineering controls, training and communication, environmental monitoring, and personal monitoring. Personal protective equipment cost monitoring is not included in controlling physical and health hazards.
All of the following effects are acute EXCEPT:
Dermatitis Acute effects indicate the symptoms have occurred rapidly. The effects are of short duration and a result of short-term exposures. Some examples of acute effects are burns, lacerations, and puncture wounds.
When hoisting a personnel platform, which of the following need NOT be engaged when the occupied platform is in a stationary position?
Guardrails and protective equipment Guardrails and protective equipment, when hoisting a personnel platform, do not have to be engaged until the occupied platform is in a working position.
Electrical burns typically occur on the _____.
Hands Hands are usually the part of the human body most often in contact with tools or equipment and therefore suffer a greater risk for electrical burns.
According to OSHA statistics, in 75% of struck-by fatalities, the victims were hit by:
Heavy Equipment OSHA estimates that 75 percent of struck-by fatalities involve heavy equipment like trucks or cranes.
What factor should be used to determine the amount of space to provide around stacked materials?
If the stack tips in any direction, enough space should be provided to allow workers to move quickly out of the way of falling materials. Building materials must be stacked in such a way as to prevent their toppling over onto workers. Always allow enough space around stacks of materials or wide walkways to allow workers to move quickly out of the way in case materials slide or are accidentally pushed over.
Implementation of the Hazard Communication Standard is _____ for all companies in the United States that import, produce, distribute, or use hazardous chemicals.
Mandatory Implementation of the HCS is mandatory for all companies in the United States that import, produce, distribute, or use hazardous chemicals.
Cranes must have all of the following pieces of information conspicuously posted and visible to operators EXCEPT:
Required driver permits According to OSHA, required driver permits do not have to be posted on cranes as part of all of the pieces of information that need to be conspicuously posted and visible to operators.
Which of the following must the operator take into consideration when determining the load rating of a crane?
The wind conditions An operator must take wind conditions into consideration when determining the load rating of a crane.
Guidelines to minimize the risk of power line accidents include all of the following EXCEPT:
Use metal ladders The use of metal ladders are not part of the guidelines to minimize the risk of power line accidents.
All of the following are essential points for the safe use of cords and wiring EXCEPT:
Use only two-wired type cords Two-wire type cords do not effectively protect in the event of a short circuit. Always use three wire cords equipped with a path to ground to prevent a severe electrical shock.
Which of the following method you should not use for putting out an electrical fire?
Water Water should never be used to put out an electrical fire since this can cause an electrical shock.
When vehicles are to be parked on an incline and left unattended, the operator must ensure all these safety controls are in place EXCEPT:
back-up alaram is activated When vehicles are to be parked on an incline and left unattended, the operator must ensure the ignition is turned off, all equipment, including accessories, is blocked, parking brakes are set and wheels are chocked.
A crane's main frame, crawler track and/or outrigger supports, boom sections, and attachments are all considered part of the _____ of lifting.
structural integrity The structural integrity of lifting for a crane include: the main frame, crawler track and/or outrigger supports, boom sections, and attachments.