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A control can be which of the following? a. electrical b. mechanical c. electrical and mechanical d. all of the above - d. all of the above A current magnetic relay opens and closes its contacts based on the ____. a. current in the start winding b. voltage across the start winding c. voltage...

The 2 classification of compressors are called? Positive displacement and kinetic displacement The 3 main ways that heat transfer takes place are by _____, _____, and _____? Convection, conduction and radiation 50/50 solder is made up of equal proportions of _____. Tin and lead 50F steam heat ...

*A38 and AX38 belts should not be mixed on a drive design to use AX38 belts because? - They require different sheaves for their use (Rob not sure) *Emergency power systems must supply power when local power fails to _____. - exit lights and stairs lights (Rob isn't sure) *How do you change pres...

A control can be which of the following? - All of the above (electrical, mechanical, electrical and mechanical) A current magnetic relay opens and closes its contacts based on the _____. - Current in the run winding A direct expansion type evaporator is also called a _____. - dry type evaporator...

10 psig is equal to: a. -4.7 psia b. 14.7 psia c. 24.7 psia d. 29.4 psia - c. 24.7 psia A cushioned check valve is used for: a. a safety valve b. an automatic non-return valve c. a pressure relief valve d. A and C - b. an automatic non-return valve A deaerator tank 10 feet high has how muc...

_____ converts between electrical and mechanical power. - Motor, Generator, alternator. ________ have overloads and _________ do not? - Starters, contactors "Cross firing " is? - Arcing across a double-brake contact A "ladder rung" in a electrical diagram refers to? - A single line in the dia...

A _____ is used to measure electrical potential? - voltmeter A _____ is used to measure resistance? - ohmmeter A 3 way switch is essentially a? - single pole double throw switch A 4S box is the most frequently used in one of the situations shown below. Which is it? - Junction box A combination ...