USCG USCG Steam
Set 3 • Question #309 of 496
Launch Interactive Practice Room Steam drum water level indicators must be calibrated to compensate for density differences between the indicated drum water level, and the actual drum water level. If no compensation is made, the indicator will show a __________.
A
lower level than exists in the drum with the error becoming greater as the drum pressure decreases
B
lower level than exists in the drum with the error becoming greater as the drum pressure increases
✓ Correct Answer
C
higher level than exists in the drum with the error becoming greater as the drum pressure decreases
D
higher level than exists in the drum with the error becoming greater as the drum pressure increases
USCG NMC Regulatory Explanation
In USCG Steam Plants (Boilers & Turbines), regarding 'Steam drum water level indicators must be calibrated to compensate for density differences between the indicated drum water level, and the actual drum water level. If no compensation is made, the indicator will show a', the verified engineering fact is: 'lower level than exists in the drum with the error becoming greater as the drum pressure increases'.
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