LGTCO/LGTF Exit Exam • Set 5 Question 4 of 30

A device used to determine the liquid-vapour interface during the ullaging of semi-pressurized and fully pressurized tanks is a:

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Direct Answer

Option D: Slip tube

Slip tubes are restricted gauging devices fitted on pressurized cargo tanks that penetrate the shell to locate the liquid/vapor interface by observing liquid spray when cracked open.

All Options

Radar gauge

Float gauge

Capacitance gauge

Slip tube (Correct Answer)

Detailed Explanation & Context

Slip tubes are restricted gauging devices fitted on pressurized cargo tanks that penetrate the shell to locate the liquid/vapor interface by observing liquid spray when cracked open.

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

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