In reading the mechanical plans one of the first thing a HVAC technician should do is find the _________.
Fill in the blank(s) with the appropriate word(s).
scale
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The _____ method uses a specially designed welding machine that can provide a rapidly pulsing current.? ?
Fill in the blank(s) with the appropriate word(s).
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Correct track _________________ is necessary to maintain long track life with low operating costs.
Fill in the blank(s) with the appropriate word(s).
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A residential A/C system that cools in summer and heats in winter by reversing the flow of refrigerant is called a:
A) Window unit. B) Stand-alone A/C system. C) PTAC system. D) Heat pump.
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While coasting, the backlash will be at the concave side of the ring gear.
a. true b. false
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