In the accompanying figure, the item identified as number 2 represents the ____.
A. y-axis
B. x-axis
C. vertical plane
D. horizontal plane
Answer: C
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When a parallel fan-powered VAV box is in the heating mode, the primary air damper is _____.
a. fully open b. fully closed c. at its minimum position setpoint d. used to control heating airflow
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What is the advantage of a sprocket over a belt?
What will be an ideal response?
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What is the function of a seed coat?
What will be an ideal response?
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Condensing units located outside that are required to operate year-round must have ____.
A. larger fan motors B. CPR valves C. all weather protection D. head pressure control
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