Stationary Engineering Exam Questions And Answers 100% Solved

Stationary Engineering Exam Questions And Answers 100% Solved What is the pressure at the base of a vertical foot of water? - answer0.433 psi How much should the boiler pressure increase when performing a hydrostatic test? - answer1.5 times the safety valve setting The range of a boiler steam pressure gauge. - answer1.5 to 2 times the safety valve setting Fuel oil heaters must be used when burning what? - answerNo. 6 fuel oil What is the maximum allowable working pressure of a low pressure steam boiler? (MAWP) - answerUp to 15 psi A boiler generating 20,000 lbs of steam/hr must be supplied with at least how many pounds of water/hr? - answer20,000 lbs Where do the heat and gases of combustion pass in a water tube boiler? - answerAround the tubes The frequency of blowing down a steam boiler is best ascertained by? - answerDaily testing of the water boiler What is an economizer used for in large boiler plants? - answerTo heat the feedwater using gases of combustion What kind of boiler is a horizontal return tubular? - answerA fire tube boiler The part of a boiler that has heat and gases of combustion on one side and water on the other. - answerHeating Surface The amount of draft available in a natural draft system is dependent on what? - answerThe height of the chimney What must the boiler steam pressure gauge be connected to? - answerThe highest part of the steam side of the boiler What is an indication of a dirty fuel oil strainer? - answerA large pressure drop across the strainer What causes a scale buildup on the water side of the steam boiler? - answerImproper water boiler treatment What are the types of boilers? - answerFire Tube Water Tube Cast-Iron Sectional How often should the water column and gauge glass be blown down? - answerOnce a shift How many pounds of water are necessary to produce 1 pound of steam? - answer1 lb of water What is the sequence of operation with a quick-opening valve, when blowing down a boiler equipped with both a quick-opening valve and a screw type valve? - answerThe quick- opening valve is opened first and closed last How is a steam pressure gauge calibrated? - answerIn pounds per square inch What is the purpose of a water column? - answerTo reduce turbulence in the gauge glass to get a more accurate reading of the water level Why should soot be removed from the boiler tubes? - answerFor better heat transfer What is the most important fitting on a boiler? - answerThe safety valve Who is in charge of doing the repairs on a safety valve? - answerThe manufacture or manufacturer's authorized representative. The deposits of calcium and magnesium carbonates on the boiler heating surface can cause what? - answerScaling What is a direct cause of overheating boiler tubes? - answerScale formation on the tubes What are try cocks? - answerA secondary means of determining water level in a boiler When is a high suction line on a fuel oil tank used? - answerWhen signs of sludge and water are evident in the tank What is protecting the boiler steam pressure gauge from high temperatures? - answerThe siphon How are superheaters being prevented from overheating? - answerSteam circulation As steam pressure in a boiler increases, there is a corresponding increase in what? - answerTemperature What must boilers operating at 100 psi or over have? - answerTwo bottom blowdown valves Boilers battery equipped with manhole openings must have what? - answerTwo main steam stop valves