In rotary type motor-compressor assemblies, the motor is cooled by ____.
A. air over the shell of the assembly
B. discharge gas from the compressor
C. suction gas returning to the compressor
D. liquid refrigerant by-passed from the liquid line
Answer: B
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Because some cows lose weight during early lactation, research has shown that adding _____ pound(s)
of fat or oil during this period can increase milk and milk fat yield, and improve the general health of the cow.
a. 1 c. 2 b. 1.5 d. 2.5
The resistance wire used in electric heating elements is usually ____.
A. copper B. nickel steel C. nickel chromium D. aluminum
Which comprises the majority of a whole grain kernel?
a. endosperm c. rye b. germ d. bran
Energy sources that can be replenished are called:
A) Renewable energy sources. B) Refillable energy sources. C) Perpetual energy resources. D) Nonrenewable energy sources.