USCG USCG Motor
Set 12 • Question #91 of 382
Launch Interactive Practice Room Which of the following conditions could cause black smoke to be discharged from the stack of an auxiliary boiler equipped with turbine-driven rotary cup atomizers?
A
Insufficient steam supply to the fuel oil heater.
B
Improper turbine shaft speed in the atomizer assembly.
✓ Correct Answer
C
Excessive opening of the dampers in the combustion air inlet.
D
Low fuel oil viscosity being maintained.
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'Which of the following conditions could cause black smoke to be discharged from the stack of an auxiliary boiler equipped with turbine-driven rotary cup atomizers', the correct operational principle is: 'Improper turbine shaft speed in the atomizer assembly.'.
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