AFF Exit Exam • Set 2 Question 2 of 30

What is the primary function of the emergency fire pump isolation valve located on the main deck?

✓

Direct Answer

Option D: Isolate the engine room fire main from the deck fire main

The isolation valve serves to segment the fire main system, allowing the crew to isolate the engine room from the deck fire main. This is vital for maintaining pressure in unaffected areas or preventing the spread of fire-related damage, ensuring the fire main remains functional for firefighting efforts in other ship sections.

All Options

A

Divert water to the bilge system

B

Prevent backflow to the sea chest

C

Increase water pressure to the bridge

D

Isolate the engine room fire main from the deck fire main (Correct Answer)

Detailed Explanation & Context

The isolation valve serves to segment the fire main system, allowing the crew to isolate the engine room from the deck fire main. This is vital for maintaining pressure in unaffected areas or preventing the spread of fire-related damage, ensuring the fire main remains functional for firefighting efforts in other ship sections.

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

Practice Full AFF Set 2

Test yourself with 30 interactive questions, live timer, and instant score.

Launch Practice Simulator →

Question Discussion & Notes

0

Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.

Loading mariner discussions...

« Previous Question Next Question »

More Questions in AFF Set 2

View All 30 →

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?