USCG USCG Motor
Set 1 • Question #8 of 382
Launch Interactive Practice Room Crank web deflection readings will give a positive indication of __________.
A
worn main bearing journals
✓ Correct Answer
B
crankpin misalignment
C
slack thrust bearings
D
bearing shells shim dimensions
USCG NMC Regulatory Explanation
Crankshaft deflection readings (measured between crankweb punch marks at bottom, port, top, and starboard) verify engine bedplate alignment, foundation chocking integrity, and main bearing wear.
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