In a cascade system, the inner loop is considered the ____ loop.
A. primary
B. secondary
Answer: B
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Chain should be destroyed after being annealed _____ times.
a. 3 b. 6 c. 8 d. 10
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When checking an electric furnace, the technician should check:
A) The loops per inch of each strip heater. B) The temperature of the outside of the furnace cabinet. C) The voltage and current draw of each strip. D) The frequency of the supply voltage.
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Which pair of factors most directly affects the maximum allowable pressure drop within a system?
A) Temperature of refrigerant and type of refrigerant B) Type of refrigerant and gas velocity C) Temperature of refrigerant and gas velocity D) Type of refrigerant and pipe size
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ASTM standards define _____ for CMUs.