Construction Health & Safety Final Exam
A guardrail system is required to withstand how many pounds of downward or outward force?
200 Pounds
How far do ladders need to extend above a surface when they are being used for access?
3 Feet
What is the maximum height to base ratio requirement for scaffolding before ties or guys are required?
4 to 1
How many pounds do all parts of a personal fall arrest system need to be able to support?
5000 Lbs per person attached
At what height is fall protection required in construction?
6 Feet
What does electricity normally travel through?
A conductor
Among the rights related to OSHA recordkeeping, workers have the right to review:
The OSHA 300 Log and the OSHA 300A Summary.
Who can determine the means of access for scaffolding?
The competent person
Which of the following affects the severity of a shock?
The path of the current
The creation of OSHA provided this important right to workers:
The right to a safe and healthy workplace
The principal hazard in the use of knives is that hands may slip from the handle onto the blade or that the knife may strike the body or the free hand.
True
The top rail of a guardrail system needs to be 42 inches plus or minus 3 inches.
True
Toe Boards are not a method of falling object protection.
True
Using the electrical cord of a tool to lower or raise a tool will weaken the electrical cord.
True
Wet clothing, high humidity, and perspiration increase your chances of being electrocuted
True
When using your lift you must keep all coworkers and unauthorized people out from underneath a raised boom by using barricades or safety tape to warn others of the overhead hazard.
True
In addition to checking the actual machine you must also check the work area before operating or moving an aerial work platform. What should you look for during the area inspection?
drop-offs floor openings weak spots
How far should scaffolding be kept away from power lines?
10 Feet
When is fall protection required on supported scaffolding?
10 Feet
Platforms must not deflect more than 1/60 of the span when loaded. So a 10 foot span (120 inches) cannot deflect more than:
2 Inches
All Compressed air connections must be secured using a properly rated fitting such as a radiator style hose clamp.
False
Any lumber can be used as planking for scaffolding.
False
Chisels, screwdrivers, and pointed tools can be carried in your pocket as long as the points and/ or cutting edges are pointed away from the body.
False
Dry Skin is a good conductor of electricity.
False
During the equipment inspection you find a worn out hydraulic line. It's ok to use the machine temporarily until it is repaired by a qualified person
False
Electric shock or electrocution will ONLY occur when you physically touch the line with any part of your body, clothing or equipment.
False
Hacksaws blades should be mounted with the teeth pointing towards the handle.
False
Ladders are allowed to be used on the top of scaffolding to reach higher locations.
False
Low voltage means low hazard.
False
No personal fall arrest system is needed on suspended scaffolding.
False
Only use a steel hammer on hardened steel surfaces because a soft head hammer will break.
False
Power tools do not need to be guarded.
False
Scaffolding planks can be painted any color.
False
There is only one type of safety shoe.
False
To gain extra leverage when using a wrench you can slip a piece of pipe over the handle.
False
Toe boards must be in place even if there is no one working below.
False
When a person is unable to release from an electric source you should try and pull the person off with your hands.
False
When using electric tools to protect yourself from shock, you must have a three-wire cord with a ground prong or be double insulated. Grounded tools are safer than double insulated tools.
False
When using power dills select a bit that is 3 or 4 inches longer than necessary to do the work.
False
You do not need be facing the ladder when climbing.
False
When are protruding nails permitted on a stairway?
Never
When can people stand on the top step of a step ladder?
Never
When can you remove the grounding prong from a cord?
Never
Can defective safety nets be used?
No
Where must mud sills be present?
On soil or other unstable surfaces.
The OSHA standards for Construction are also known as:
Part 1926.
When the employer receives an OSHA citation, it must be:
Posted for 3 days or until the violation is fixed.
How often do personal fall arrest systems need to be inspected for damage or defects?
Prior to each use
OSHA's mission is to:
Protect the safety and health of America's workers
What should you do if the rungs on a metal ladder are corroded?
Remove the ladder from service
Before any abrasive wheel is mounted, it should be visually inspected for cracks or fractures. In addition bench grinder wheels should be ________.
Ring tested
What is the maximum variation in riser height on any stairway?
1/4 Inch
When using personal fall arrest devices on a lift attach one end of the lanyard to the harness and the other end to... (select the best answer)
...the manufacturer specified anchor point.
Only trained and qualified workers are permitted to operate aerial work platforms. This means that:
1. All operators must receive formal training 2. All operators must provide proof of competency for the operation of aerial work platforms 3. All operators must read, understand and follow the manufacturer's instructions prior to using an aerial work platform.
What can head injuries be caused by?
1. Falling objects such as tools 2. Bumping head against objects 3. Contact with exposed electrical wiring or components
The 4 most fundamental safe work practices when using hand and portable power tools include: (select all that apply)
1. Select the Right Tool for the Job 2. Keep Tools in Good Working Condition 3. Use Tools the Right Way 4. Place/Keep and Store Tools in a Safe & Secure place
When do supported scaffoldings platforms need to be fully planked?
Always
Where do toeboards need to be in place on scaffolding?
Always
A personal fall arrest system consists of which of the following?
Anchorage Point Connectors Full body harness
When are stairways or ladders required?
Any break in elevation of 19 inches
The Minimum Approach Distances of your lift to overhead power lines depends on how much voltage is in the lines and the legislative jurisdictional requirements where your project is located . When you must work closer than the minimum distances what should you do: (Select the best answer)
Contact the power company to have the lines de-energized or shielded.
How far away should you stay from overhead power lines?
Depends on the voltage but at least 10 feet
If you find damage or defects on part of your personal fall arrest system what should you do?
Discontinue use
Which of the following would not require eye protection to be worn?
Driving
Who is responsible for the daily maintenance of PPE?
Each Employee
What must a hole cover protect employees from?
Falling through the hole Tripping in the hole Stepping into the hole
"D Rings" can be used even if they have a small bend.
False
A guardrail system is not an appropriate form of fall protection around skylights.
False
A Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) gives information about:
Hazardous chemicals.
What type of OSHA inspection is conducted when immediate death or serious harm is likely?
Imminent danger.
Which of the following is a secondary injury of shocks?
Injuries from falls
Permitted types of access includes:
Ladders, such as portable, hook-on, attachable, stairway type, and built-ins Stair towers Ramps and walkways
Which of the following is not considered an insulator?
Metal
A common problem is using wires too small for the amount of current. This can cause overheating.
True
A skylight is a hole which an employee must be protected from falling though.
True
All aerial work platforms must have switches, guards or other safety devices that will prevent the unintentional operation of the work platform.
True
All step ladders need to have a metal spreader or locking device.
True
All workers on the worker platform must wear full body fall protection harness. The fall protection harness and lanyard must not permit the worker to fall from the basket and strike the ground.
True
An inspection of scaffolding should take place before every work shift.
True
Body harnesses need to be made of synthetic fiber.
True
Each day, before wearing your hard hat you must check it for damage.
True
Each scaffold must be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it.
True
Electric shock occurs when a person's body completes a currents path.
True
Electrical burns are among the most serious burns and require immediate medical attention.
True
Extremely high-energy arcs can damage equipment, causing fragmented metal to fly in all directions.
True
GFCI's are designed to protect you from shock.
True
Guarding involves locating or enclosing electric equipment to make sure people do not accidentally come into contact with its live parts.
True
If a scaffold must be erected near power lines contact the power company to de-energize or otherwise insulate the lines
True
If an employee must lean through an opening to conduct hoisting operations the employee must be protected by a personal fall arrest system.
True
If shocked you should see a doctor because of the potential for internal injuries.
True
In congested areas you may have to appoint a spotter to monitor clearances, hazards and to warn others
True
It is the operators responsibility to read and understand all warnings in addition to the operators manual.
True
Ladder repairs must restore the ladder to a condition meeting its original design criteria before the ladder is returned to use.
True
Most aerial lifts including scissor lifts are not electrically insulated!
True
One of the most common causes of hand injures when using a power tool is not disconnecting the power supply before changing or adjusting the wheels or bits.
True
Shock absorbing lanyards limits the arrest forces to less than 900 Lbs.
True
Steel and aluminum decking/planking is allowable.
True
The cross bracing on the back side of step ladders is not to be used as steps.
True
The ground furnishes a second path for the current to pass through from the tool or machine to the ground. Correct!
True
The impact indicator on a sock absorbing lanyard can show if a fall has taken place or not.
True
