How does an energy-recovery wheel improve system efficiency?
A) By moving some of the system refrigerant with a turbulator
B) By reducing the condenser head pressure
C) By transferring heat between the ventilation air and the exhaust air
D) By keeping the evaporator clean
C
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When white light is passed through a prism, how many total colors are visible?
a. 6 b. 10 c. 14 d. 18
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Another name for a meetingÕs presiding officer or president is the ____________________
Fill in the blank(s) with the appropriate word(s).
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News reporters do not like _____ news
a. agricultural b. old c. timely d. financial
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A circulating pump for a solar collector costs $376.60. A contractor can buy it for ? off. What will the contractor pay for the pump?
Fill in the blank(s) with the appropriate word(s).
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