LGTCO/LGTF Exit Exam • Set 6 Question 3 of 30

What is the minimum water application rate of the fixed water spray system for fire protection purposes on horizontal deck surfaces?

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Direct Answer

Option A: 10 litres/m² per minute

The IGC Code Chapter 11 requires deck fixed water spray systems to deliver a minimum uniform application rate of 10 litres/m² per minute over horizontal surfaces.

All Options

10 litres/m² per minute (Correct Answer)

4 litres/m² per minute

20 litres/m² per minute

15 litres/m² per minute

Detailed Explanation & Context

The IGC Code Chapter 11 requires deck fixed water spray systems to deliver a minimum uniform application rate of 10 litres/m² per minute over horizontal surfaces.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).

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Q1 Running two identical centrifugal cargo pumps in parallel will result in: Q2 Whether cargo tanks are of Type 'A', 'B' or 'C', a complete double hull is required for carriage of liquefied gas cargoes below what temperature? Q3 What is the minimum water application rate of the fixed water spray system for fire protection purposes on horizontal deck surfaces? Q4 What is the minimum water application rate of the fixed water spray system for fire protection purposes on vertical surfaces? Q5 In fixed gas-detection systems on board gas carriers, the Gas Codes mandate that sampling intervals from any one space must not exceed: Q6 What is the name of the statutory certificate issued by a Flag Administration confirming that a gas carrier complies with the IGC/GC Gas Code? Q7 Which space is defined as the space enclosed by the ship's structure in which a cargo containment system is situated? Q8 Which petroleum gases does commercial LPG mainly consist of? Q9 What is the primary purpose of inerting on a liquefied gas carrier? Q10 What is the function of membrane tank on a liquefied gas carrier?