On a properly operating system, what is the state of the refrigerant as it enters the compressor?
A. high pressure vapor
B. low pressure vapor
C. low pressure liquid
D. high pressure liquid
Answer: B
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The ____ is a covering that may be placed over the flue for protection from the elements.
A. ash dump B. smoke chamber C. vent D. chimney hood
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A standard method for applying board insulation to square or rectangular duct involves _____.
a. wire or strapping b. weld pins c. adhesive tape d. cement
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Applying pressure to certain crystals to produce voltage is known as the ____ effect.
A. photovoltaic B. piezoelectric C. thermoelectric D. chemical
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Using a farrowing crate can mean that many piglets will be crushed by the heavy sow
Indicate whether the statement is true or false
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