Explain what a cool roof is, and state its advantages and limitations.

What will be an ideal response?


See the Instructor's Manual (IM).

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Which type of lubricator is used in larger machinery and uses an oil pump to inject lubricant through ducts drilled into rotating members and casings?

a. Ring oilers b. Wick feed c. Forced feed d. Drip feed

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A relatively inexpensive feed for cows is ____

A) corn B) grass C) wheat D) oats

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Which of the following must always be replaced when a retrofit is performed?

A) Refrigerant oil B) Compressor C) Expansion valve D) Condenser

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Cloning allows for a more uniform herd.

Answer the following statement true (T) or false (F)

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