USCG USCG Steam
Set 13 • Question #143 of 496
Launch Interactive Practice Room Dirty generating tube surfaces may cause higher than normal superheater outlet temperatures because __________.
A
the boiler must be overfired to maintain the required rate of steam generation
✓ Correct Answer
B
the temperature of the gas leaving the generating banks will be lower than normal
C
the screen tubes absorb excessive heat and transfer the increased temperature to the superheater
D
gas laning will result causing overheating of the superheater
USCG NMC Regulatory Explanation
In USCG Steam Plants (Boilers & Turbines), regarding 'Dirty generating tube surfaces may cause higher than normal superheater outlet temperatures because', the verified engineering fact is: 'the boiler must be overfired to maintain the required rate of steam generation'.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...