Boma-Hvac Study Guide Questions And Correct Answers

Economizers: {Ans: for the same power input, capacity is increased}A single way to distinguish a capacitor for a DC circuit from one AC circuit is to _____? {Ans: check for polarity markings on the circuit}Steam gives off a great amount of heat because of its _____. {Ans: Specific heat}What volume of air will move thru a duct 24x18 at velocity of 450 feet per minute? {Ans: 1350 cfm}Prerotation vanes are used to control _____. {Ans: Capacity}For practical purposes the low side of a refrigeration system includes the _____? {Ans: Evaporator}