In designing an engine, which of the following is LEAST-Likely to optimize horsepower and torque curves?

A. Cylinder
B. Camshaft
C. Exhaust system
D. Intake manifold


Answer: A

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The base current must be created by a DC voltage source, which is called ____.

a. bias b. current c. power d. polarity

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A furnace with a vertical air flow through the heat exchanger and the blower compartment beneath the heat exchanger is called a(n) ____.

A. upflow B. downflow C. low boy D. horizontal

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Which of the following terms best describes the study or theoretical explanation of natural phenomena?

A. Ecology B. Biology C. Science D. Agriculture

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Direct-expansion coils operating below the dew point of the entering airstream will:

A) Cool the water vapor (humidity) in the air and condense it as droplets on the coil. B) Expand the water vapor (humidity) in the air and condense it as droplets on the coil. C) Warm the water vapor (humidity) in the air and condense it as droplets on the coil. D) Cool the water vapor (humidity) in the air and expand it as droplets on the coil.

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