Stationary Engineer Boiler Exam Questions with Correct Answers

Stationary Engineer Boiler Exam Questions with Correct Answers ____ lbs of air are needed for every 1 lb of fuel for proper combustion - ANSWER-15 ______ has a low heating value and is not often used as a boiler fuel. - ANSWER-Lignite ______ is hard coal with a high fixed carbon content. - ANSWER-Anthracite _______ air controls the rate of combustion. - ANSWER-Primary _______ draft is a combination of forced and induced draft - ANSWER-Combination _________ air controls the efficiency of combustion. - ANSWER-Secondary _________ is soft coal with high volatility. It is prone to spontaneous combustion. - ANSWER-Bituminous - Combination draft is blowing and sucking ______ - ANSWER-together - determine the relieving capacity of a safety valve by looking at the manufacturer's _______ ______ - ANSWER-data sheet - Fuel oil pumps are usually positive displacement and have relief ______ - ANSWER-valves - safety valve resets at a pressure slightly lower than the popping pressure- the difference in pressure is called blowdown or _______ - ANSWER-blowback - The bottom portion of the water column holds sediment= sediment ______ - ANSWER-chamber -#6 fuel oil must be ______ - ANSWER-heated -3 parts of fire triangle= heat, fuel, ______ - ANSWER-oxygen -4 things needed to achieve proper combustion when burning fuel oil, mixture, atomization, time, and temperature. Remembered by the acronym ____ - ANSWER-MATT -Accumulation test- done on high fire, close main steam stop valve, done to test the popping pressure of the safety valve. Popping pressure of valve must not exceed the MAWP of the boiler by more than 6%. Cannot be done on a boiler with a ________. - ANSWER-superheater -Accuracy on steam pressure gauge should be _% - ANSWER-2 -Air cock= another name for boiler ______ - ANSWER-vent -Any accessories on the water column must be approved by ASME and have at least 1 inch _______ - ANSWER-piping -Best way to control TDS is continuous ________. - ANSWER-blowdown -blowdown gauge glass/water column once a ______ - ANSWER-shift -Blowdown line sizes= 1 inch to 2 ½ ______ - ANSWER-inches -Boiler efficiency= how much heat is absorbed into the water compared to how much heat is contained in the _____ - ANSWER-fuel -Boiler startup procedure: Pre purge the boiler for 30 seconds, light the pilot, prove the pilot for 10 seconds, light the main burner, prove the main burner, secure pilot after main flame has been established. Reach cutout point (Main)-secure fuel, and post purge. The controls have 4 seconds to secure the fuel if we lose the ______ - ANSWER-flame -Boiler vent, mounted to the highest part of the steam side of the boiler. Open the vent while boiler is cooling to break the vacuum caused by collapsing steam. Before any/bo enters the boiler or before filling boiler, make sure the vent is ______. - ANSWER-open -Bottom blowdown = at least once a day. Open the valve closest to the boiler first and close it ______. - ANSWER-last -Calibrate steam pressure gauge annually- 2% accuracy- 1 ½ to 2 times ______ - ANSWER-MAWP -Cast iron sectional boiler "______ ______ Boiler" - ANSWER-Pork Chop -Chattering= rapid opening and closing of a safety ______ - ANSWER-valve -Close the vent after the boiler starts making steam, allows for air and non-condensables to ________. - ANSWER-escape -Condensate is returned to open feedwater tank or de-aerating feedwater tank. These tanks heat the water and remove air and non condensable ______. - ANSWER-gases -Connections for the gauge glass should be minimum ¼ in. unless steel or wrought ______ - ANSWER-iron