Tankerman · Transfer — Emergency
The emergency shutdown (ESD) signal agreed on the Declaration of Inspection is used to:
- ASignal the start of cargo transfer
- BImmediately and safely stop the transfer in an emergency✓ Correct
- CRequest more cargo
- DTest the radar
Explanation
Both ends must agree on the emergency-shutdown signal beforehand so that, on any hazard, the transfer can be halted quickly without causing a pressure surge or spill.
Authority: Tank Vessel Operations (33 CFR 156)
Practice the full Tankerman bank
Free spaced-repetition quizzing across 2190 USCG exam questions — it schedules your reviews so the ones you miss come back until they stick.
Related Tankerman questions
- Transfer — PIC
During a cargo transfer on a tank vessel, the Person-In-Charge (PIC) is primarily responsible for:
- Transfer — DOI
Before a transfer of oil or hazardous material begins, the PICs of the transferring and receiving facilities must complete and agree on a:
- Safety — Inert Gas
The purpose of an inert gas system on a tanker is to:
- Safety — Inert Gas
A cargo tank is generally considered properly inerted when the oxygen content is held at or below:
- Safety — Flammability
A hydrocarbon vapor/air mixture will burn only when its concentration is:
- Safety — Static
To prevent a static-electricity ignition hazard during loading of a static-accumulating cargo, the tankerman should: