Evaporators and the Refrigeration System 207 of the air passing over the evapora

Question

Evaporators and the Refrigeration System 207 of the air passing over the evapora- 5. Tas ratest effect on the film factor. ra 18. The fin spacing on low-temperature evaporators is to A. quantity B. temperature C. humidity D. velocity on medium-temperature evaporators. A. the same as B. closer together tharn C. farther apart than 16. Refrigeration designed for the purpose of storin flowers or candy is considered refrigeration. A. high-temperature B. medium-temperature C. low-temperature D. dry-type 19. The capillary tube is a type of A. safety device. B. pressure gauge. C. filter D. metering device. 20. The latent heat absorbed by the refrigerant while For low-temperature refrigeration, from it is changing state isthe sensible heat added to the vapor leaving the coil. A. the same as B. less concentrated than C. more concentrated than 17. the compressor discharge line may be used to defrost the evaporator. A. warm liquid B. hot gas C. moisture D. hot crankcase oil

Explanation / Answer

15) D (Velocity)

The Velocity of the air passing over the evaporator has the greatest effect on the film factor

16) A (High temperature)

Refrigeration designed for the purpose of storing flowers or candy is considered High temperature refrigeration

17) B (Hot gas)

For low temperature refrigeration Hot gas from the compressor discharge line may be used to defrost the evaporator

18) C (Farther apart than)

The fin spacing on low temperature evaporators is Farther apart than on medium temperature evaporators

19) D

The capillary tube is a type ofMetering device

20) C

The latest heat absorbed by the refrigerant while it is changing state is more concentrated thanthe sensible heat added

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