CHEMCO Exit Exam • Set 5 Question 30 of 30
What is the purpose of the relief valve of a cargo pump?
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Direct Answer
Option D: Permits the return of cargo to the suction side of the pump
A cargo pump's relief valve is a safety device that allows excess pressure to be safely returned to the suction side of the pump, preventing damage to the pump or pipeline system if discharge is blocked.
All Options
A
Provides for the removal of vapors
B
Allows two or more tanks to be filled at the same time
C
Provides for the emergency shutdown of the pump
D
Permits the return of cargo to the suction side of the pump
(Correct Answer)
Detailed Explanation & Context
A cargo pump's relief valve is a safety device that allows excess pressure to be safely returned to the suction side of the pump, preventing damage to the pump or pipeline system if discharge is blocked.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).
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