Large rooftop package AC units often use ________ to help draw in fresh air to meet code requirements and to cool if temperature and humidity permit
A) an economizer B) airflow C) enthalpy D) low pressure
A
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What is an example of physical health issue not a mental health that can occur if shift work is not handled well?
A) Irritability B) Depression C) Lack of exercise D) Lack of a social life
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The ____ is the vertical distance from one step to another.
a.total rise b.unit rise c.total run d.unit run
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Taps can be surface treated by:
A) Tempering B) Anodizing C) Nickel plating D) Nitriding
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In what circumstance would bare-pipe evaporators not be used?
A) air conditioning coils B) heat pump indoor coils C) Low-temperature refrigeration storage D) medium temperature walk in cooler evaporators
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