Which of these ATC output devices provides a feedback signal to the electronic control module (ECM)?

A) Mode air door motor
B) Blend door actuator
C) Air inlet door vacuum motor
D) Blower motor control


B) Blend door actuator

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The speed at which the magnetic field rotates is called the ____ speed.

a. rotor b. motor c. primary d. synchronous

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Testing for a restricted exhaust system using a vacuum gauge is being discussed. Technician A says this test should be performed at idle only. Technician B says that high vacuum on the gauge during all phases of the test indicated a restricted exhaust. Who is correct?

A. A only B. B only C. Both A and B D. Neither A nor B

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When checking the resistance of the compressor start winding, the technician's multimeter shows OL. This indicates that:

A) The winding is open. B) The winding is shorted. C) The winding is grounded. D) The winding has continuity and is good.

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The ____________________ is the rotating part of the motor.

Fill in the blank(s) with the appropriate word(s).

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