1st Class Stationary Engineer's Examination #4 100% Correct!!

Absolute zero is - ANSWER -460 F The mechanical equivalent of heat is - ANSWER 778 BTUs The failure of a brick furnace lining is called - ANSWER Spalling The amount of heat required to change the state of a substance is called - ANSWER Latent The section of solid plate between tube holes is called a - ANSWER Ligament The external covering of a boiler is called - ANSWER Lagging The instrument used to test flue gases for proper combustion is a - ANSWER ORSAT The test used to determine the amount of dissolved oxygen in water is the _________ Test - ANSWER Winkler Air being compressed by a two-stage aircompressor can be cooled by the use of a - ANSWER intercooler A ___________ pump requires no air chamber on the discharge line. - ANSWER centrifugal The device used to regulate the amount of refrigerant to