LGTCO/LGTF Exit Exam • Set 3 Question 11 of 30

When the over-pressure of an airlock or gas-safe space is lost:

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Direct Answer

Option A: All electrical equipment that is not of a certified safe type should be de-energized

If positive overpressure is lost in an airlock or gas-safe space, all non-certified electrical equipment must be automatically or manually de-energized to eliminate ignition sources.

All Options

All electrical equipment that is not of a certified safe type should be de-energized (Correct Answer)

All electrical equipment that is of a certified safe type should be de-energized

All electrical equipment should continue running without interruption

All electrical equipment, both certified and non-certified, must be de-energized immediately

Detailed Explanation & Context

If positive overpressure is lost in an airlock or gas-safe space, all non-certified electrical equipment must be automatically or manually de-energized to eliminate ignition sources.

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 Liquefied gas tankers are categorized as per the cargoes carried, as follows: Q2 There are three types of gas tankers according to the carriage condition, such as: Q3 The cargo area of a gas tanker which is not equipped in an approved manner to ensure that its atmosphere is at all times maintained in a safe manner is a: Q4 A space other than a gas-dangerous space is known as: Q5 Air intakes for accommodation and engine-room have to be at a minimum safe distance from ventilation outlets from: Q6 Can hot work in dangerous and hazardous areas be carried out during cargo, tank cleaning, gas freeing, purging or inerting operations? Q7 Access from a gas-dangerous zone on the open weather deck to a gas-safe space is arranged through: Q8 Airlock doors should be self-closing and must not have hooks or hold-open devices. There should be a minimum distance of at least _____ between both doors. Q9 An audible and visual alarm system gives a warning on both sides of the airlock when: Q10 The gas-safe and airlock spaces within the cargo area have: