Stationary Steam Engineer License Prep {3 rd Class} Pre Test Questions And Answers

Stationary Steam Engineer License Prep {3 rd Class} Pre Test Questions And Answers _________ are necessary for complete combustion - ANSWER : time, temperature, mixture, and atomization If the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ - 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 - ANSWER : 12 An oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-generator - 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 - ANSWER : superheated The economizer on a boiler is used to _______ - ANSWER : add heat to the feed water Blowers are normally used with________ boilers - ANSWER : water tube Overheating of tubes on a boiler can be caused by________ - ANSWER : scale on tubes