Question 577Steam Plants - Assistant Engineer

70% to pass

An auxiliary turbine boiler feed pump should normally be stopped by _______________.

Aincreasing the load on the driven unit
Bclosing the exhaust valve slightly
Cactuating the throttle hand tripping device
Drotating the hand lube oil pump backwards
AI Explanation

The correct answer is C) actuating the throttle hand tripping device. The reasoning is that the auxiliary turbine boiler feed pump should normally be stopped by actuating the throttle hand tripping device. This is the recommended method as it quickly and safely disengages the turbine from the pump, allowing the pump to come to a stop without potentially damaging the system by increasing the load on the driven unit (A), closing the exhaust valve slightly (B), or rotating the hand lube oil pump backwards (D). The other options are incorrect because they do not provide the safest or most appropriate method for stopping the auxiliary turbine boiler feed pump.

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Official Resources
46 CFR Machinery & Electrical 46 CFR Engineering USCG National Maritime Center
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