Question 369General Subjects - 1st Asst/Chief

70% to pass

According to 46 CFR regulations pertaining to tests and inspections as related to automatic auxiliary boilers, the fuel pressure limit control must be checked for proper shutdown operation. What statement is true?

ATo initiate a safety shutdown, the fuel pressure must be raised to a value above what is required for safe combustion. After the safety shutdown, the boiler is required to restart automatically upon restoration of normal pressure.
BTo initiate a safety shutdown, the fuel pressure must be raised to a value above what is required for safe combustion. After the safety shutdown, a manual reset must be required before boiler restart.
CTo initiate a safety shutdown, the fuel pressure must be lowered to a value below what is required for safe combustion. After the safety shutdown, a manual reset must be required before boiler restart.
DTo initiate a safety shutdown, the fuel pressure must be lowered to a value below what is required for safe combustion. After the safety shutdown, the boiler is required to restart automatically upon restoration of normal pressure.
AI Explanation

The correct answer is C. According to 46 CFR regulations, to initiate a safety shutdown on an automatic auxiliary boiler, the fuel pressure must be lowered to a value below what is required for safe combustion. After the safety shutdown, a manual reset must be required before the boiler can be restarted. This ensures that the boiler system is thoroughly checked and reset before resuming operation, enhancing safety. The other options are incorrect because they do not accurately reflect the regulatory requirements. Raising the fuel pressure above the safe limit (option A), or automatically restarting the boiler after a shutdown (options A and D), would not provide the necessary safety checks and controls required by the regulations.

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