3rd class stationary steam engineer license prep questions with complete solutions

_________ are necessary for complete combustion correct answer: time, temperature, mixture, and atomization if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ correct answer: 214.7 a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The blowdown is______psi correct answer: 12 an oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-generator correct answer: steam turbine 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 the economizer on a boiler is used to _______ correct answer: add heat to the feed water blowers are normally used with________ boilers correct answer: water tube overheating of tubes on a boiler can be caused by________ correct answer: scale on tubes carbon dioxide in a condensate return system causes_________ correct answer: channeling a ________ pump is a positive displacement pump correct answer: reciprocating a boiler generating 6000 lb of steam/hr produces _______btu/