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Steam Plants - USCG Exam Questions

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If a boiler generates saturated steam at 125.3 psig, how much heat is required to change the water into steam if the feed water temperature is 240°F? SG-0004

USCG illustration SG-0004 for Engine Steam Plants question 462
Illustration SG-0004
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ma magnussonshred · Sep 10, 2016
How do I use the information to get the right answer?
by bybymsn · Sep 11, 2016
Look for the saturated liquid BTU/lb for 240 degrees and subtract that from the saturated steam BTU/lb (heat content/enthalpy) and you have your answer.

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Practice 811 real U.S. Coast Guard Engine exam questions from Steam Plants. Here's a random one. Answer it, then keep going with Next.

Boilers, steam turbines, condensate and feed systems, and the operation and maintenance of steam propulsion plants.

The Engine pool holds the current U.S. Coast Guard questions for engineering credentials, from QMED ratings through DDE and Assistant Engineer up to Chief. Answer any question to see the correct choice instantly.