The K-factor is a measure of _____.
a. thermal conductivity
b. insulation thickness
c. insulation density
d. relative humidity
a. thermal conductivity
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Most systems use a flap door that swings about ________ degrees
A) 10 to 25 B) 25 to 40 C) 45 to 90 D) 90 to 120
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The water line supplying a swimming pool requires the installation of a(n) _____.
a. pressure-type vacuum breaker b. double-check valve assembly c. atmospheric vacuum breaker d. dual-check valve backflow preventer
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If the legs of a right triangle are 18 cm and 24 cm respectively, then what is the length of the hypotenuse of the right triangle?
Fill in the blank(s) with the appropriate word(s).
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The evaporator temperature of a walk-in at a 35° box temperature should be about:
a. 15° b. 25° c. 35° d. 40°
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