Question 390Steam Plants - 1st Asst/Chief
70% to passPrecautions to be observed prior to starting a turbine driven cargo pump should include _______________.
Aobserving the operation of the over speed trip
Bopen all governor oil relay drains
Cassuring that the turbine casing drains are wired closed
Dchecking the manual trip device for proper operation
AI Explanation
The correct answer is D) checking the manual trip device for proper operation. Prior to starting a turbine-driven cargo pump, it is essential to check the manual trip device to ensure it is functioning correctly. This is a crucial safety precaution as the manual trip device is the primary emergency shut-off mechanism for the turbine, which can quickly shut down the pump in case of an emergency. Checking the manual trip device's operation verifies that the system is ready to respond if needed, which is more important than the other options provided, such as observing the over-speed trip or opening governor oil relay drains, which are not directly related to the manual trip device.
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