NCCER Electrical
NCCER Electrical module 2 (Electrical Safety)
Exam Questions & Answers
Under strict safety guidelines, which of the following should be used to discharge capacitors
before working on de-energized circuits. - answer ✔ - safety shorting probe
For safety, assume that any facility constructed before 1980 has? - answer ✔ - asbestos
With of the following is the threshold at which a power source is considered high voltage in the
context of safety? - answer ✔ - over 600v- 600volts
Insulated gloves must be inspected by the user? - answer ✔ - always and field checked
The normal beating of a heart can be upset by an electrical current as small as? - answer ✔ -
75ma
Which factor determins the outcome of an electrical shock? - answer ✔ - amount of current
measured in amperes
A live-dead-live test is conducted in order to? - answer ✔ - verify the circuit is de-energized
You are required to be evaluated by a physician to ensure that you are physically fit to use
which of the following types of protective equipment? - answer ✔ - respirators
Which of the following battery byproducts can be explosive when mixed with air? - answer ✔ -
hydrogen gas
1|P A G E
NCCER Electrical module 2 (Electrical Safety)
Exam Questions & Answers
Under strict safety guidelines, which of the following should be used to discharge capacitors
before working on de-energized circuits. - answer ✔ - safety shorting probe
For safety, assume that any facility constructed before 1980 has? - answer ✔ - asbestos
With of the following is the threshold at which a power source is considered high voltage in the
context of safety? - answer ✔ - over 600v- 600volts
Insulated gloves must be inspected by the user? - answer ✔ - always and field checked
The normal beating of a heart can be upset by an electrical current as small as? - answer ✔ -
75ma
Which factor determins the outcome of an electrical shock? - answer ✔ - amount of current
measured in amperes
A live-dead-live test is conducted in order to? - answer ✔ - verify the circuit is de-energized
You are required to be evaluated by a physician to ensure that you are physically fit to use
which of the following types of protective equipment? - answer ✔ - respirators
Which of the following battery byproducts can be explosive when mixed with air? - answer ✔ -
hydrogen gas
1|P A G E
