Electrical Safety Rating Exam Flash Cards 2019

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)
B) 1.0 A
C) 0.2 Milliamperes
D) 0.1 mA

Final approval to work on an energized switchboard is required from which of the following persons?

A) The operations officer
B) The Commanding Officer
C) The officer of the deck
D) The engineering officer

Which of the following characteristics of electrical-grade rubber gloves is the basis for their classification?

A) 0.2 Milliamperes
B) Rubber wall thickness of the glove
C) Color of the label on the sleeve
D) 0.1 mA

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
B) The engineering officer
C) The Commanding Officer
D) Electrical safety 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?

A) High caution areas
B) Hazardous Spaces
C) Caution/Do not enter spaces
D) Safety zone spaces

What electrical resistance level is the human body typically categorized in?

A) Low
B) Infinite
C) Zero
D) High

When skin is damp, how low can body resistance be measured?

A) 50 ohms
B) 300 ohms
C) 200 ohms
D) 100 ohms

What person is overall responsible for the 3M aboard the ship?

A) Executive Officer
B) Department Head
C) Operations Officer
D) Commanding Officer

What NSTM covers basic electrical safety and guidelines for handling energized equipment?

A) NSTM 300
B) NSTM 475
C) NSTM 545
D) NSTM 630

What is the minimum number personnel that have to be CPR qualified before conducting an IVV?

A) 2
B) 4
C) 1
D) 3

You should always assume electrical equipment is de-energized.


A) False
B) True

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
B) One repair group
C) The Officer of the Deck
D) The Engineering Officer

If a person is unconscious because of an electric shock, you should start artificial respiration at what point?

A) After transporting the person to sick bay
B) When ordered by senior personnel
C) As soon as possible
D) After assistance arrives

A person has stopped breathing but is still alive. This person is said to be in which of the following states?

A) Near-death experience
B) Suspended animation
C) Respiratory failure
D) Cardiac arrest

What equipment is needed for conducting an initial voltage verification?

A) rubber mat, disposable gloves, face shield
B) goggles, disposable gloves, face shield
C) rubber gloves, rubber mat, goggles
D) 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)
B. Potassium bicarbonate (PKP)
C. Fresh water
D. Aqueous film forming foam (AFFF)

During a fire, what person determines whether the power should be secured?

A) The repair party electrician
B) The on-scene leader
C) The repair party leader
D) The damage control assistant

When it is necessary to rig casualty power cables, what person(s) is/are responsible for tying the cables up in
the overhead?

A) The on-scene leader
B) The repair party electrician
C) All members of the repair party
D) The person assigned by the locker leader

Rubber gloves are required for initial voltage verification at all times.

A) True
B) False