AFF Exit Exam • Set 2 Question 13 of 30

Which SOLAS requirement applies to quick-closing valves on fuel oil tanks in case of engine room fire?

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Direct Answer

Option C: They must be capable of being closed from a safe position outside the engine room

SOLAS Chapter II-2, Regulation 4.2.2.5 mandates that fuel oil supply lines must be fitted with quick-closing valves. These must be operable from a position outside the machinery space to ensure fuel isolation during a fire, preventing the fuel from feeding the blaze while keeping personnel safe from the immediate hazard.

All Options

A

They must be tested every 5 years

B

They can only be operated manually inside the engine room

C

They must be capable of being closed from a safe position outside the engine room (Correct Answer)

D

They must close automatically at 50 degrees C

Detailed Explanation & Context

SOLAS Chapter II-2, Regulation 4.2.2.5 mandates that fuel oil supply lines must be fitted with quick-closing valves. These must be operable from a position outside the machinery space to ensure fuel isolation during a fire, preventing the fuel from feeding the blaze while keeping personnel safe from the immediate hazard.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Fire Fighting (AFF).

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Q1 Regarding deck and engine room operational protocols in Advanced Fire Fighting, what is the mandatory safety standard required under STCW Code Table A-VI/2? Q2 What is the primary function of the emergency fire pump isolation valve located on the main deck? Q3 Under SOLAS regulations, what is the minimum water capacity for the emergency fire pump on cargo vessels? Q4 What type of fixed fire extinguishing system is required for paint lockers having a deck area greater than 4 m²? Q5 What pre-release protocol must be completed before discharging CO2 into an engine room space? Q6 What is the principal extinguishing mechanism of High-Expansion Foam when applied to machinery space bilges? Q7 What is the maximum allowable pressure drop before an SCBA compressed air cylinder must be recharged? Q8 What is the function of the International Shore Connection fitted on shipboard fire mains? Q9 What is the primary objective of boundary cooling during a shipboard compartment fire? Q10 Under SOLAS Chapter II-2, how many firefighter outfits must be carried on cargo ships of 500 GT and above?