To increase the evaporator pressure, the adjustment on top of an automatic expansion valve should be:
A) Turned clockwise. B) Turned on.
C) Turned counterclockwise. D) Turned off.
A
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One application of a phototransistor is a(n) _____.
A. optical encoder circuit B. voltage regulator C. Hall-effect device D. voltage controller
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?____ cutting uses a stiff, highly ionized, extremely hot column of gas to almost instantly vaporize the metal being cut.
A. ?Laser beam B. ?Air carbon arc C. ?Oxyfuel gas D. ?Plasma arc
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Read the setting on this customary micrometer scale graduated in 0.001".
Fill in the blank(s) with the appropriate word(s).
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Based on TROT, what is the approximate btuh of a 5 HP medium temp compressor?
a. 60,000 btuh b. 40,000 btuh c. 30,000 btuh d. 20,000 btuh
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