USCG USCG Motor
Set 9 • Question #378 of 382
Launch Interactive Practice Room Why should the main steam stop valve of an auxiliary boiler be eased off its seat and then gently closed before lighting of?
A
To check the valve packing.
B
To examine the valve stem for scars or nicks.
C
To check for a tight bonnet seal.
D
To ensure that the valve will not be seized shut when hot.
✓ Correct Answer
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'Why should the main steam stop valve of an auxiliary boiler be eased off its seat and then gently closed before lighting of', the correct operational principle is: 'To ensure that the valve will not be seized shut when hot.'.
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