NCCER Electrical module 2 ( electrical safety)
questions and answers 2025
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
the OSHA lockout-tagout rule protects workers from? - ANSWER potential exposure to
hazardous energy sources
questions and answers 2025
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
the OSHA lockout-tagout rule protects workers from? - ANSWER potential exposure to
hazardous energy sources
