Older R-12 refrigerants turns to deadly phosgene gas if allowed to contact an open flame or an extremely hot metal surface.

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


True

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? Identify and state the historical significance of the New Jersey Plan.

What will be an ideal response?

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Many ____ use the pressure of refrigerant in a sealed system to sense temperature.

a. differential thermostats b. programmable thermostats c. staging thermostats d. line voltage thermostats

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The improper fraction 37/6 can be changed to the mixed number _____

A) 6 B) 5-7/16 C) 6-1/6 D) 37

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Red blood cells get their red color from:

A. myoglobin B. hemoglobin C. carbon dioxide D. oxygen

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