Stationary Engineering Exam Questions with Complete Solutions (Latest 2023)

What is the pressure at the base of a vertical foot of water? Correct Answer 0.433 psi How much should the boiler pressure increase when performing a hydrostatic test? Correct Answer 1.5 times the safety valve setting The range of a boiler steam pressure gauge. Correct Answer 1.5 to 2 times the safety valve setting Fuel oil heaters must be used when burning what? Correct Answer No. 6 fuel oil What is the maximum allowable working pressure of a low pressure steam boiler? (MAWP) Correct Answer Up to 15 psi A boiler generating 20,000 lbs of steam/hr must be supplied with at least how many pounds of water/hr? Correct Answer 20,000 lbs Where do the heat and gases of combustion pass in a water tube boiler? Correct Answer Around the tubes The frequency of blowing down a steam boiler is best ascertained by? Correct Answer Daily testing of the water boiler What is an economizer used for in large boiler plants? Correct Answer To heat the feedwater using gases of combustion What kind of boiler is a horizontal return tubular? Correct Answer A fire tube boiler The part of a boiler that has heat and gases of combustion on one side and water on the other. Correct Answer Heating Surface The amount of draft available in a natural draft system is dependent on what? Correct Answer The height of the chimney What must the boiler steam pressure gauge be connected to? Correct Answer The highest part of the steam side of the boiler What is an indication of a dirty fuel oil strainer? Correct Answer A large pressure drop across the strainer What causes a scale buildup on the water side of the steam boiler? Correct Answer Improper water boiler treatment