Name: 
 

Chapter 1



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

Never work on an energized electrical circuit unless ____.
a.
told to do so by your supervisor
b.
it is not possible to disconnect the power
c.
you are sure you can safely make the repairs
d.
a and c only
 

2. 

A current of 20 to 30 milliamperes passing through the body will generally cause ____.
a.
the heart to go into fibrillation
b.
muscular paralysis and breathing difficulty
c.
a person to seize the line and not be able to let go
d.
a slight tingling sensation
 

3. 

A current of 100 to 200 milliamperes passing through the body will generally cause ____.
a.
the heart to go into fibrillation
b.
muscular paralysis and breathing difficulty
c.
a person to seize the line and not be able to let go
d.
a slight tingling sensation
 

4. 

When a person puts a lock on a piece of equipment to lock it out, the key is kept by ____.
a.
the shift supervisor
c.
the person installing the lock
b.
the maintenance foreman
d.
none of the above
 

5. 

An electrician's hard hat should be made of ____.
a.
aluminum
c.
steel
b.
plastic
d.
tungsten
 

6. 

Electricians should avoid working with ladders made of ____.
a.
wood
c.
aluminum
b.
fiberglass
d.
both b and c
 

7. 

The highest usable step on a stepladder is ____.
a.
the top of the ladder
b.
the top step of the ladder
c.
the second step from the top of the ladder
 

8. 

A class ____ fire involves burning metal.
a.
A
c.
C
b.
B
d.
D
 

9. 

A GFCI will open the circuit when it detects a current difference of ____.
a.
5 milliamperes
c.
5 microamperes
b.
8 milliamperes
d.
8 microampere
 

10. 

All electrical lines and equipment should be considered ____ until determined otherwise.
a.
open
c.
shorted
b.
energized
d.
safe
 



 
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