USCG USCG General Eng
Set 12 • Question #91 of 498
Launch Interactive Practice Room Which of the units of measurement listed below are used to express positive and negative suction heads when calculating pump head or hydraulic horsepower?
A
Inches of mercury for positive head and feet of water for negative head
B
Feet of water for positive head and inches of mercury for negative head
C
Inches of mercury for both positive and negative heads
D
Feet of water for both positive and negative heads
✓ Correct Answer
USCG NMC Regulatory Explanation
In USCG Marine Engineering General Subjects, for engine room systems involving 'Which of the units of measurement listed below are used to express positive and negative suction heads when calculating pump head or hydraulic horsepower', the standard operating requirement is: 'Feet of water for both positive and negative heads'.
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