The oil in a vacuum pump should be changed _____

a. about every five minutes of pump operation
b. only when changing from one refrigerant to another
c. immediately after pumping down a wet or contaminated system
d. about every 25 hours of pump operation


c

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What is meant by "rubber band effect"?

A) Just a slang term for the variator pulleys B) A rubber band is used to apply the clutches inside a CVT C) A CVT uses a large rubber band D) The vehicle speed slowly catches up to the engine speed

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_____________ are plant-derived molecules that may have anti-inflammatory, antioxidant, or immune-enhancing properties

Fill in the blank(s) with correct word

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What two functions does the evaporator of a domestic refrigerator perform?

A. Filters and cools the air. B. Absorbs and dissipates heat. C. Humidifies and cools the air. D. Dehumidifies and cools the air.

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Given the IA of Figure P15.11, with the component values of Problem 15.17, calculate the mismatch in gains for the differential components. Express your result in decibels.

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