LGTCO/LGTF Exit Exam • Set 6 Question 16 of 30

What should be done if portable gas detector gives abnormal reading?

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Direct Answer

Option D: treat it as unsafe until confirmed and investigated

Abnormal portable gas detector readings must always be treated as a genuine hazard until thoroughly investigated. International safety standards require treating unverified instrument fluctuations as potential atmosphere degradation to safeguard personnel against toxic or flammable gas exposures.

All Options

continue operation and check later

open nearby drains to atmosphere

silence alarms and ignore

treat it as unsafe until confirmed and investigated (Correct Answer)

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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