In a heat pump system, the evaporator is described as the __________ coil and the condenser is described as the __________ coil.
Fill in the blank(s) with the appropriate word(s).
indoor, outdoor
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_________________________ are a helix or conical spiral formed on the external surface of a shaft or on the internal surface of a cylindrical hole.
Fill in the blank(s) with the appropriate word(s).
What improper operation can cause burn, injuries, or death?
A) Bypassing safety interlocks B) Failure to follow flame safety procedure C) Poor control of excess air and draft control D) All of the above
Without the use of leaded gasoline, how does the manufacturer keep the valves and seats from wearing out?
A) Lapping in the valves B) Harder valves and seats C) Aluminum heads D) Sodium valves
In general, a system that is undercharged will have:
A) A high subcooling and a low superheat. B) A high subcooling and a high superheat. C) A low subcooling and a high superheat. D) A low subcooling and a low superheat.