PSCRB Exit Exam • Set 5 Question 11 of 30

What device inside a lifeboat engine compartment prevents battery discharge when the boat is stowed?

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Direct Answer

Option A: Battery main isolator switch (battery selector switch)

Marine engineering standards require a battery main isolator switch to prevent electrical discharge and eliminate ignition sources when the lifeboat is secured in its stowage position.

All Options

Battery main isolator switch (battery selector switch) (Correct Answer)

Solenoic fuse link

Automatic alternator bypass

Rheostat dimmer

Detailed Explanation & Context

Marine engineering standards require a battery main isolator switch to prevent electrical discharge and eliminate ignition sources when the lifeboat is secured in its stowage position.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Proficiency in Survival Craft and Rescue Boats (PSCRB).

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More Questions in PSCRB Set 5

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Q1 What requirement applies to the engine starting arrangement of a Fast Rescue Boat (FRB)? Q2 What equipment item is mandatory in a rescue boat for towing life rafts? Q3 What is the fresh water allocation requirement per person in a SOLAS Lifeboat equipment pack? Q4 What equipment item inside a lifeboat is used to measure magnetic heading for navigation? Q5 What color parachute flare signal is used by survival craft to indicate distress at night? Q6 What is the function of the skates or fenders fitted to the inboard side of a davit-launched lifeboat? Q7 What safety mechanism prevents the fall wire from unwinding off the davit winch drum when the lifeboat reaches the water? Q8 Under SOLAS regulations, how often must lifeboat fall wires be turned end-for-end and renewed? Q9 What quantity of searchlights is required to be carried in a SOLAS Lifeboat? Q10 What item of signaling equipment inside a lifeboat equipment pack provides audible warnings in fog?