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

What device stops cargo flow automatically if loading arms move beyond safe limits?

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Direct Answer

Option A: Emergency Release Coupling (ERC) / PERS

Powered Emergency Release Systems (PERS) incorporate Emergency Release Couplings (ERC) with hydraulic ball valves and break-links. These mechanisms automatically shut off flow and part cleanly if manifold loads exceed safe limits due to vessel drift or sea action.

All Options

A
Emergency Release Coupling (ERC) / PERS (Correct Answer)
B
Non-return flap
C
Hand valve
D
Butterfly valve

Detailed Explanation & Context

Powered Emergency Release Systems (PERS) incorporate Emergency Release Couplings (ERC) with hydraulic ball valves and break-links. These mechanisms automatically shut off flow and part cleanly if manifold loads exceed safe limits due to vessel drift or sea action.

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

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