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Refrigerated trucks are equipped with systems that are designed primarily to maintain a product's temperature while being transported.

A) True
B) False

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In a cascade system, the condensing refrigerant in one stage is used to evaporate the refrigerant in another stage .

A) True
B) False

Correct Answer

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Where are cascade systems primarily used?


A) Extra-low temperature range.
B) Low temperature range.
C) Medium and low temperature ranges.
D) Medium temperature range.

E) C) and D)
F) B) and D)

Correct Answer

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Nitrogen is not suitable for breathing because it has no ____________________ in it .

Correct Answer

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Why are phase-change (eutectic) solutions used inside the cold plates mounted in the walls or ceiling of trucks ?

Correct Answer

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When the change of state occur...

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Cargo ship refrigeration units are usually sized with very little reserve capacity .

A) True
B) False

Correct Answer

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A eutectic solution is a(n) ____.


A) phase change solution
B) very warm solution
C) acid solution
D) explosive solution

E) A) and D)
F) B) and D)

Correct Answer

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Showing 21 - 27 of 27

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