The nameplate speed of a 25-Hz induction motor is 720 r/min. If the speed at no load is 745 r/min, find
a. The slip.
b. The percent regulation.
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Due to the nature of the control circuit of the electrical and mechanical interlocking system, it is impossible for the reverse contacts to close until the ____________________ contacts are open.
Fill in the blank(s) with the appropriate word(s).
Explain what interpass temperature is, including minimum and maximum interpass temperatures.
What will be an ideal response?
The air bag system relies heavily upon information concerning direction of travel and severity of the ____________________ forces.
Fill in the blank(s) with the appropriate word(s).
How do environmental variables complicate HVACR testing?
A) When completed, the tester must note testing conditions and type of HVACR testing. B) Environmental conditions have little impact on testing. C) Testing conditions, such as air pressure and temperature, can affect testing. D) Many types of HVACR testing, organizations, and standards exist.