In the circuit of Fig. 11.40, determine the average power absorbed by the 40-? resistor.
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What is the other commonly used term for the rain-screen wall?
What will be an ideal response?
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When do positive shutoff fittings reduce refrigerant loss?
A) When connecting and disconnecting hoses B) Only when disconnecting hoses C) When fixing broken hoses D) Only when connecting hoses
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Which type wrench is used on fasteners that do NOT require a lot of torque?
A) Box end B) Open end C) Adjustable D) None of these
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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
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