3rd class stationary steam engineer license prep exam
questions with verified answers.
1. _________ are necessary for complete combustion - Correct answer time,
temperature, mixture, and atomization
2. if the steam pressure gauge indicates 200 PSIG, the absolute pressure
is______ - Correct answer 214.7
3. A boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and
closes at 398 PSI. The blow down is______psi - Correct answer 12
4. an oil cooler is commonly used with a(n) ________ when operating in
conjunction with a turbo-generator - Correct answer steam turbine
5. A boiler is producing 40,000lb of steam/hr. at a pressure of 100 PSI and a
steam temperature of 500 degrees Fahrenheit. The steam produced is
_______ steam - Correct answer superheated
6. the economizer on a boiler is used to _______ - Correct answer add heat to
the feed water
7. blowers are normally used with________ boilers - Correct answer water tube
8. overheating of tubes on a boiler can be caused by________ - Correct answer
scale on tubes
9. carbon dioxide in a condensate return system causes_________ - Correct
answer channeling
10.a ________ pump is a positive displacement pump - Correct answer
reciprocating
11.a boiler generating 6000 lb. of steam/hr. produces _______but/hr. - Correct
answer 6,000,000
12.a bottom blow down is performed on a boiler to _____ - Correct answer
discharge sludge and sediment
13.water columns are connected to the boiler with a minimum of _______" pipe -
Correct answer 1
14.The minimum size of a water column blow down valve is_______". - Correct
answer 3/4
15.The maximum size bottom blow down valve on a boiler is_________". -
Correct answer 2 1/2
1
