What amount of current is potentially fatal if it passes through a person’s body for 1 second or more?
A) 1.0 milliampere (mA)
Final approval to work on an energized switchboard is required from which of the following persons?
B) The Commanding Officer
Which of the following characteristics of electrical-grade rubber gloves is the basis for their classification?
B) Rubber wall thickness of the glove
What program is designed to provide for personnel and ship safety and prevent damage to equipment while
conducting routine preventative maintenance or repair actions?
A) Tag-out program
What item is used as a precautionary measure and provides temporary special instructions for the operation
of equipment?
A) Caution tag
B) Danger tag
C) Out-of-commission tag
D) Out-of-calibration tag
What term describes areas that are typically wet, oily, or electrical spaces?
B) Hazardous Spaces
What electrical resistance level is the human body typically categorized in?
A) Low
When skin is damp, how low can body resistance be measured?
B) 300 ohms
What person is overall responsible for the 3M aboard the ship?
D) Commanding Officer
What NSTM covers basic electrical safety and guidelines for handling energized equipment?
A) NSTM 300
What is the minimum number personnel that have to be CPR qualified before conducting an IVV?
C) 1
You should always assume electrical equipment is de-energized.
A) False
B) True
A) False
When two or more repair groups are performing repairs on a system, the responsibility for posting a danger
tag rests with whom?
A) Each repair group
If a person is unconscious because of an electric shock, you should start artificial respiration at what point?
C) As soon as possible
A person has stopped breathing but is still alive. This person is said to be in which of the following states?
C) Respiratory failure
What equipment is needed for conducting an initial voltage verification?
B) rubber mat, electrical rubber gloves, face shield
What fire-extinguishing agent is the safest type for use on an electrical fire?
A. Carbon dioxide (CO²)
During a fire, what person determines whether the power should be secured?
A) The repair party electrician
When it is necessary to rig casualty power cables, what person(s) is/are responsible for tying the cables up in
the overhead?
C) All members of the repair party
Rubber gloves are required for initial voltage verification at all times.