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WorksheetsElectrical Safety
Total questions: 20
Worksheet time: 8mins
Name
Class
Date
1.
Under strict safety guidelines, which of the following should be used to discharge capacitors before working on de-energized circuits?
a)
A test instrument
b)
A hot stick
c)
A phasing tester
d)
A safety shorting probe
2.
What color tags are on the rubber gloves with the highest level of protection?
a)
black
b)
red
c)
orange
d)
yellow
3.
For safety, assume that any facility constructed before 1980 contains?
a)
asbestos
b)
confined spaces
c)
GFCIs
d)
PCBs
4.
Which of the following voltages is considered low voltage?
a)
500V or less
b)
600V or less
c)
700V or less
d)
800V or less
5.
Insulating gloves must be inspected by the user?
a)
before each use
b)
weekly
c)
monthly
d)
yearly
6.
Class 1 rubber gloves have a maximum AC use voltage of?
a)
1,000V
b)
7,500V
c)
17,000V
d)
26,500V
7.
The normal beating of a heart can be upset by an electrical current as small as?
a)
1mA
b)
30mA
c)
75mA
d)
1,000mA
8.
Which factor determines the outcome of an electrical shock?
a)
The amount of current
b)
Which phase is involved
c)
The raceway system
d)
The size of the electrical equipment being used
9.
A live-dead-live test is conducted in order to?
a)
disconnect switches and fuses
b)
verify the test instrument operation
c)
make sure the capacitors are discharged
d)
verify that a circuit is de-energized
10.
OSHA requires you to be evaluated by a physician to ensure that you are physically fit to use which of the following types of protective equipment?
a)
Chemical goggles
b)
Filter mask
c)
Respirator
d)
Chemical apron
11.
Which of the following battery byproducts can be explosive when mixed with air?
a)
acid
b)
hydrogen
c)
mercury
d)
zinc
12.
NEC Section 590.6(A) states that the receptacle outlets requiring GFCI protection include the 125V, single-phase, 15A, 20A, and?
a)
30A
b)
32A
c)
50A
d)
60A
13.
The OSHA lockout/tagout rule protects workers from?
a)
exposure to harmful chemicals
b)
system shutdown
c)
exposure to hazardous energy sources
d)
unauthorized use
14.
Which of the following should have side rails that extend 36 inches above the top support point?
a)
Painted ladders
b)
Straight ladders
c)
Step ladders
d)
Scaffolds
15.
At the end of the shift, a confined space entry permit must be?
a)
destroyed
b)
retained for one year
c)
signed by the foreman
d)
submitted to OSHA
16.
What must happen before any work may be performed in a confined space?
a)
Classification by a qualified individual
b)
Shut off and lock out power sources
c)
Entry and inspection of hazards
d)
Installation of additional ventilation
17.
NFPA 70E provides practical guidance in?
a)
confined space entry
b)
fall protection
c)
hazard assessment
d)
solvents and toxic vapors
18.
OSHA CFR 1910 is the standard for?
a)
general industry
b)
electronic systems
c)
the construction industry
d)
lockout/tagout
19.
OSHA safety standards for the construction industry are contained in?
a)
OSHA CFR 1333
b)
OSHA CFR 1910
c)
OSHA CFR 1926
d)
OSHA CFR 1978
20.
When a guardrail cannot be attached to a building, a solution may be to install a(n)?
a)
personal fall arrest system
b)
anchorage device
c)
controlled access zone
d)
retractable lanyard
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