How are set screws classified?
a. Head style
b. Thread style
c. Point hardness
d. Torque value
a
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Galvanized sheet metal comes in several different thicknesses, called the ____________________ of the metal.
Fill in the blank(s) with the appropriate word(s).
Why is it necessary to have controls for maintaining a minimum high-side pressure on outdoor air-cooled condensers?
A) The refrigerant will not condense if it is excessively cooled. B) Compressors will not operate correctly if the compression ratio is too low. C) The chemical components in the refrigerant will separate if the pressure is allowed to drop below the normal minimum operating pressure. D) Refrigeration metering devices require a minimum pressure drop to operate.
Technician A says the hypoid gearset was designed to lower the body profile. Technician B says hypoid gears provide for smoother and quieter action. Who is correct?
A. A only B. B only C. both A and B D. neither A nor B
A solder pot is part of a ____.
A. one-time fuse B. resettable circuit breaker C. time-delay fuse D. plumber's tool kit