What prevents the thrust bearing blocks shown in the illustration from rotating within the housing? Illustration MO-0120

Correct Answer: Option B — Found within the thrust bearing cap or cover are extended protrusions to position the thrust shoe segments and maintain minimum clearance.

Under USCG National Maritime Center examination standards, the accepted correct answer is: Found within the thrust bearing cap or cover are extended protrusions to position the thrust shoe segments and maintain minimum clearance..