Module 2 Safety for Electricians
A work permit is a type of _______.
Administrative Control
The OSHA lockout/tagout rule ______.
Applies to any stored energy that could cause injury (electrical, mechanical, hydraulic, chemical, thermal, kinetic, or other)
The _____ is an approach limit at a distance from exposed energized electrical conductors or circuit parts within which a person could receive a second-degree burn if an electrical arc flash were to occur.
Arc flash boundary(AFC)
An _____ is used to study a worker's potential exposure to arc flash energy.
Arc flash risk assessment
A garment's _____ is its maximum incident energy resistance demonstrated prior to material breakdown, or at the onset of a second-degree skin burn.
Arc rating
Low-voltage conductors ______.
Are responsible for most electrocution deaths due to the frequency of contact
CFR part 1910 covers the ____.
OSHA STANDARDS FOR GENERAL INDUSTRY
CFR part 1926 covers the ___.
OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY
What is the proper distance from the feet of straight ladder to the wall ?
One-fourth the working height of the ladder.
Fluorescent light fixtures may contain _____.
PCBs
The least effective method of preventing risk is through the use of _____.
PPE(Personal Protective Equipment)
Which of the following is true with regard to hand tools ?
Point the blade of a sharp tool away from yourself to avoid injury if it slips during use.
Chemicals known as ______ may be found in certain types of large transformers and capacitors.
Polychlorinated biphenyls (PCBs)
The NFPA 70E standard covers the ____.
Practical safe working requirements relative to electrical hazards.
One who has demonstrated the skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to identify and avoid the hazards involved is known as a ____________.
Qualified person
The best way to protect yourself from solvent hazards is to_____.
Read and follow all instructions on the product's SDS(Safety Data Sheet).
An important use of a hot stick is to _______.
Replace fuses
The _______ is an approach limit at a distance from an exposed energized electrical conductor or circuit part within which there is an increased likelihood of electric shock.
Restricted approach boundary
Maintaining three-point contact on a ladder means that ___.
You must either have both feet and one hand on the ladder or both hands and one foot as you climb.
All conductors, buses, and connections should be considered ____ until proven otherwise.
live
Class 0 rubber gloves are used when working with voltages less than ____________.
1,000 volts
The distance from the ladder feet to the base of the wall or support should be about ___ the vertical distance from the bottom to the top of the ladder.
1/4th
It is safe to assume that asbestos may be found in any facility constructed before_____.
1980
A PFAS anchorage point for a 6'(1.8m) lanyard must be able to hold______.
5,000 pounds (2,268 kg)
Fall protection is required when working at elevations of _____.
6'(1.8 m) or more
Fall protection must be used when employees are on a walking or working surface that is _____ or more above a lower level and has an unprotected edge or side.
6'(1.8m)
What are the minimum and maximum distances (in inches) that a scaffold plank can extend beyond its end support ?
6;12
There are six classes of rubber protective equipment. List the six classes and their voltage ratings.
Class 00(beige tag) 500v Class 0(red tag) 1,000v Class 1(white tag) 7,500v Class 2(yellow tag) 17,000v Class 3(green tag) 26,500v Class 4(orange tag) 36,000v
The type of hard hat that can withstand a voltage of 20,000VAC for three minutes is a _______.
Class E
The most life threatening hazards on a construction site typically include all of the following except_________. A. Falls B. Electric Shock C. Being crushed or struck by falling objects or flying objects. D. Chemical burns
D. Chemical Burns
Tools that have been made of nonconductive material and have been constructed so that the case is insulated from electrical energy are called ?
Double-Insulated/Ungrounded tools
A machine guard is a type of _______.
Engineering control
You should use a compressor for an air test on high-voltage gloves because it has more pressure and is much faster. (True or False?)
False
A life-threatening condition of the heart in which the muscle fibers contract irregularly is called ?
Fibrillation
Which of the following is considered a confined space ?
Grain hopper
A _____ will de-energize a circuit or portion of it if the current to ground exceeds some predetermined value.
Ground fault circuit interrupter (GFCI)
A ________ tool has a three-prong plug at the end of its power cord or some other means to ensure that stray current travels to ground without passing through the body of the operator.
Grounded tool
If a person's heart begins to fibrillate due to an electrical shock, the solution is to _______.
Have a Qualified person use a defibrillator
Scheduling off-shift maintenance work is a type of _______.
Hazard control
Before determining the proper procedure for confined space entry, a(n) ____ must be performened.
Hazard review
A temporary ground would be removed using a ?
Hot stick
The amount of thermal energy impressed on a surface at a certain distance from the source of an electrical arc is known as the ?
Incident energy
As it is erected, each part of a scaffolding shall be carefully ____.
Inspected
A shock of 5mA can cause injury through _____.
Involuntary movement
Which of these statements can correctly describes a double-insulated power tool ?
It can safely be used in place of a grounded tool
List the general guideline used in identifying a confined space.
It has restricted entry and exit. It is not intended for continued human occupancy. It has the potential for other hazards, such as electrical, explosive, and animal. It has the potential for entrapment/engulfment. It has the potential for accumulating a dangerous atmosphere.
Which of the following is true with regard to lifting ?
Lift by straightening your legs.
The _______ is an approach limit at a distance from an exposed energized electrical conductor or circuit part within which a shock hazard exists.
Limited approach boundary
Which of the following applied in a lockout/tagout procedure ?
Lockout/Tagout devices are installed by every employee involved in the work.
The NEC(National Electric Code) covers the ?
Minimum requirements for the installation of electrical systems.
What happens to the permits used to enter a confined space ?
They are recorded in the job journal at the end of each shift and retained for a year.
A first-year electrical apprentice is most likely to be an ?
Unqualified person
