The condenser of a domestic refrigerator changes a ____.
A. high pressure liquid to a low pressure liquid
B. high pressure vapor to a high pressure liquid
C. low pressure vapor to a high pressure vapor
D. low pressure liquid to a low pressure vapor
Answer: B
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By dividing the ____ rating of a lamp by the watts rating, a value called the efficacy of the lamp is determined.
A. volt B. lumen C. ampere D. color
Who was the first successfully cloned sheep?
a. Holly in 1987 c. Dolly in 1996 b. Molly in 1990 d. Polly in 2001
Velocity pressure readings are taken on a duct system by:
A) Pointing the pressure-sensing tube perpendicular to the air stream. B) Pointing the pressure-sensing tube into the airstream. C) Subtracting the static pressure from the total pressure. D) Subtracting the total pressure from the static pressure.
The item indicated by the letter A is used to:
?
A. indicate pad wear. B. alert the driver when the brakes are applied. C. reduce pad wear. D. turn on the brake warning light.