1st Class Stationary Engineer's Examination #4 || with 100% Accurate Solutions.

Absolute zero is correct answers -460 F The mechanical equivalent of heat is correct answers 778 BTUs The failure of a brick furnace lining is called correct answers Spalling The amount of heat required to change the state of a substance is called correct answers Latent The section of solid plate between tube holes is called a correct answers Ligament The external covering of a boiler is called correct answers Lagging The instrument used to test flue gases for proper combustion is a correct answers ORSAT The test used to determine the amount of dissolved oxygen in water is the _________ Test correct answers Winkler Air being compressed by a two-stage aircompressor can be cooled by the use of a correct answers intercooler A ___________ pump requires no air chamber on the discharge line. correct answers centrifugal The device used to regulate the amount of refrigerant to the evaporator is the correct answers expansion valve ________ Is used to protect the compressor of a refrigeration system from slugs of liquid refrigerant. correct answers False head The temperature of the water used for a hydrostatic test should be correct answers 70 Degrees or above When a boiler is "Laid-up" by the wet method, the PH of the water should be maintained in the range of correct answers 10 to 12 is a device used to measure very high temperature correct answers pyrometer firetubes are fastened to the tube sheet by correct answers expanding or rolling The point at which the air becomes saturated is called the correct answers Dew point To remove oil from a boiler you should use correct answers Caustic soda