LGTCO/LGTF Exit Exam • Set 1 Question 7 of 30

What gas detector measures low levels of flammable gas in air?

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Direct Answer

Option C: Explosimeter (Combustible Gas Indicator)

Explosimeters measure flammable gas concentrations as % LEL.

All Options

Hydrometer

Salinometer

Explosimeter (Combustible Gas Indicator) (Correct Answer)

Thermocouple

Detailed Explanation & Context

Explosimeters measure flammable gas concentrations as % LEL.

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

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More Questions in LGTCO/LGTF Set 1

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Q1 What does LGTF stand for in maritime STCW training? Q2 What are the two main categories of liquefied gas cargoes carried in bulk? Q3 What is cryogenic temperature range in gas shipping? Q4 What injury occurs if human skin contacts cryogenic liquid gas? Q5 What happens to liquid gas if spilled onto seawater? Q6 How is LPG maintained liquid at ambient temperature in pressurized ships? Q7 What gas detector measures low levels of flammable gas in air? Q8 What code sets international safety standards for gas carrier construction? Q9 What is the liquid-to-gas expansion ratio of LNG when vaporized at atmospheric pressure? Q10 What safety system protects ship structure from cryogenic liquid leaks on deck?