The resistance of a positive temperature coefficient thermistor (PTC):
A) Corrects negative current to make it positive. B) Increases as temperature increases.
C) Decreases as temperature increases. D) Corrects negative polarity to make it positive.
B
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Which of the following is an example of a reciprocating compressor?
A) Lobe B) Screw C) Liquid ring D) Double-acting piston
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Laminates are ordinarily used in ____ thicknesses.
a.two b.three c.four d.five
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Heat exchange between the capillary tube and the suction line is necessary for the unit to meet capacity ratings.
Answer the following statement true (T) or false (F)
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The function of a damper in an air distribution system is to _____
a. distribute air uniformly b. add moisture to the air c. control and balance air flow d. compensate for duct leakage
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