Some brushless DC motor circuit boards contain ____ that permit the air handler to be set for different operating conditions.
a. magnetic switches
b. pressure switches
c. temperature switches
d. DIP switches
d. DIP switches
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What will be an ideal response?
A preliminary hazard analysis is conducted to identify potential hazards and prioritize them according to what?
A. Likelihood of an accident or injury being caused by the hazard. B. Severity of injury, illness, and/or property damage that could result if the hazard caused an accident. C. Both A and B. D. None of the above.
Which is not a basic mode of operation for a differential amplifier?
A) differential mode B) common mode C) single-ended mode D) inverse-ended mode
An auxiliary drain pan under an air handler is required when the air handler is installed ____.
A. in an attic B. in a drop ceiling C. above a traffic area D. all of the above