USCG USCG General Eng
Set 6 • Question #405 of 498
Launch Interactive Practice Room Which features of a centrifugal pump reduce the need for renewing worn impellers and pump casings?
A
Close radial clearance between impeller hub and casing
B
Low rotational speed of impeller
C
Removable end plate
D
Replaceable impeller and casing wearing rings
✓ Correct Answer
USCG NMC Regulatory Explanation
In USCG Marine Engineering General Subjects, for engine room systems involving 'Which features of a centrifugal pump reduce the need for renewing worn impellers and pump casings', the standard operating requirement is: 'Replaceable impeller and casing wearing rings'.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...