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

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


A) Blend door actuator

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Manufacturers of hardware for sliding and bifold doors specify ____________ for doors installed with their hardware.

A. exact sizes B. rough opening sizes C. frame size

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The university at Bologna grew out of the need to make sense of

a. Greek religious concepts. b. Muslim military strategies. c. Roman civil law. d. Aristotelian philosophy.

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Potential energy is:

A) Purely theoretical. B) Energy in motion. C) An energy source with promise that has not found practical application. D) Stored energy.

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When constructing a wall with steel studs, the spacing between studs is indicated on the _____

a. site plan b. plans and specifications c. mechanical plan d. header schedule

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