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

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The resistance wire used in electric heating elements is usually ____.

A. copper B. nickel steel C. nickel chromium D. aluminum

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Which comprises the majority of a whole grain kernel?

a. endosperm c. rye b. germ d. bran

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Energy sources that can be replenished are called:

A) Renewable energy sources. B) Refillable energy sources. C) Perpetual energy resources. D) Nonrenewable energy sources.

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