When an air conditioning system has been pumped down, which component is not isolated?
A. evaporator
B. filter/drier
C. TXV
D. compressor
Answer: D
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Conditions that can be used to initiate a defrost cycle include
A) high compressor amp draw, low outdoor temperature, or time B) time, high compressor amp draw, high discharge line temperature C) high static pressure drop across the outdoor coil, low liquid line temperature, or time D) low static pressure drop across the outdoor coil, high compressor amp draw, low suction line temperature
Vacuum boosters generate their application energy through the ____________________ between engine vacuum and atmospheric pressure.
Fill in the blank(s) with the appropriate word(s).
A variable intake manifold will have ________ intake runners at high RPM for ________ power
A) Short; balanced B) Long; increased C) Long; decreased D) Short; increased
When erecting a gable roof, which portion of the rafter is nailed to the ridgeboard?
a. the bird?s mouth b. the plumb cut c. the tail cut d. the seat cut