Commercial refrigeration systems normally have:

A) Most commercial refrigeration systems do not have refrigeration service valves.
B) A suction service valve, a discharge service valve, and a king valve.
C) A suction service valve and a discharge service valve.
D) A liquid line valve and a suction service valve.


B

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A) glass fiber-restrained cement. B) glass fiber-reinforced concrete. C) glass fiber-reinforced cement. D) glass fiber-restrained concrete. E) none of the above.

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Fillet weld tests consist of:

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What will be an ideal response?

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