OCTCO/OCTF Exit Exam • Set 6 Question 7 of 30
Which pump must always be primed?
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Direct Answer
Option A: Centrifugal pump
Centrifugal pumps cannot pump air or create suction lift from a dry condition; therefore, their casing and suction eye must always be primed with liquid before operation.
All Options
A
Centrifugal pump
(Correct Answer)
B
Reciprocating pump
C
Rotary pump
D
Gear pump
Detailed Explanation & Context
Centrifugal pumps cannot pump air or create suction lift from a dry condition; therefore, their casing and suction eye must always be primed with liquid before operation.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF).
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