LGTCO/LGTF Exit Exam • Set 3 Question 26 of 30

What is the auto-ignition temperature of Propylene Oxide?

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Direct Answer

Option A: 465°C

Propylene Oxide exhibits high chemical reactivity similar to Ethylene Oxide. With an auto-ignition temperature of 465°C, strict adherence to SIGTTO and IGC Code carriage limits, inert gas padding, and temperature restrictions are mandatory to prevent polymerization or thermal decomposition.

All Options

465°C (Correct Answer)

509°C

416°C

396°C

Detailed Explanation & Context

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: