Stationary Engineering Exam Questions And Answers 100% Solved

Stationary Engineering Exam Questions And Answers 100% Solved There must be adequate ___ across any steam trap for the condensate and/or air to be removed from the steam system. differential pressure When 200 lb of water is heated from 62°F to 75°F, ___ Btu is absorbed. 2600 A(n) ___ is used to reduce sulfur dioxide emissions. flue gas scrubber A ___ protects a Bourdon tube inside a pressure gauge from warping due to the high temperature of the steam. siphon loop A column of water 150′-0″ high exerts a pressure of ___ psi at the bottom of the column. 65 The short stubs of piping connected to a boiler during construction to provide attachment points for piping and appliances are called ___. nozzles A dryback scotch marine firetube boiler is 8′-6″ in diameter and has a flue furnace that is 30″ in diameter. The boiler is 17′-3″ long and has 122 tubes that are 2″ in diameter. If the tube sheets are disregarded, the boiler has ___ sq ft of heating surface. 1239 ___ is the erosion that occurs as steam or another high-velocity fluid streaks through a small opening, such as one created by a throttled valve. wire drawing Boiler tubes can fail due to ___. all of the above The circumference of a boiler shell that is 6′-3″ in diameter is ___′. 19.652 When a boiler is equipped with a superheater, the safety valve that should lift at the lowest pressure is ___. the super heater safety valve A(n) ___ line provides a minimum flow through a centrifugal pump to prevent overheating and cavitation when the pump must operate against a closed discharge valve for a period of time. recirculation An area of 32 sq ft contains ___ sq in. 4608 The acronym MATT stands for ___. mixture, atomization, time, and temperature Grades of fuel oil are designated by number. They range from ___ through ___. 1 - 6 The order in which a sodium zeolite water softener regenerates is ___. backwash, brine, and rinse A ___ valve should be placed at the discharge of a positive-displacement pump. relief Large amounts of combustible material in furnace ash are most likely caused by ___. inadequate forced draft ___ is the collection of mineral deposits formed on the heating surfaces of a boiler. scale ___ is the hydraulic shock that can result from water buildup in steam piping. water hammer ___ are chemicals that cause hardness crystals in boiler water to settle out as a heavy sludge. phasphates How should a motor-driven centrifugal pump be started to minimize the starting current draw on the motor? with the suction valve wide open and the discharge valve closed ___ is the ability of a material to deform permanently under compression without rupture. malleability The main pressure gauge on a boiler must be able to read at least ___ times the MAWP of the boiler. 1.5 A(n) ___ regulator automatically maintains a constant, safe water level in a boiler. feed water "___" is the term commonly used for exp