If a defrost timer does not cycle the system through a defrost cycle periodically, you should suspect that ________
A) the compressor cannot shut off
B) the defrost heater is bad
C) the timer motor is not running continuously or is not running at all
C
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? Identify and state the historical significance of Chester W. Nimitz.
What will be an ideal response?
A ____ structure is made by wrapping aluminum stripes around the Permalloy at a 45° angle to the strip axis.
A. loop pole B. Maypole C. log pole D. barber pole
In centrifugal compressors, capacity control is accomplished by the use of ___________________________________.
Fill in the blank(s) with the appropriate word(s).
How much mechanical work is required to lift a 300-lb compressor 3 ft?
A) 300 lb × 3 ft = 900 ft-lb of force B) Mechanical force alone will not lift the compressor. C) 300 lb/3 ft = 100 ft-lb of force D) 300 lb of force