What is coupling runout?
A. when coupling has too little shaft to mount on.
B. amount coupling is out of round or off center.
C. coupling slides axially on shaft.
D. both A and B.
B
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When the heat pump is used in the ____ of operation, the outside heat exchanger is being used as the evaporator and cold refrigerant is circulated through it.
a. manual mode b. heating mode c. programmed mode d. cooling mode
Which type of compressor has no suction valve but does use a discharge valve?
a. Scroll compressor b. Rotary compressor c. Screw compressor d. Centrifugal compressor
¿Qué bobina de un transformador está conectada a la carga?
a. Mutua b. Positiva c. Secundaria d. Primaria
Which stage of the Industrial Revolution involved mechanization, steam and water power?
A) First B) Second C) Third D) Fourth