What happens to the evaporator fan motor when the defrost cycle is terminated?
A) The fan comes back on to cool the freezer.
B) The fan shuts off until the defrost termination thermostat senses that the evaporator is cold again.
C) The fan runs at a higher speed until the evaporator has cooled back down.
D) The fan stops running backwards and begins to operate normally again.
B
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The pilot bushing supports the front end of the transmission and can also be in the form of a:
A. needle bearing assembly. B. ball bearing assembly. C. tapered bearing assembly. D. Both A and B
The approximate R-value of an air-filled IGU with a low-E-coated glass is _______.
A) 1.0. B) 2.0. C) 3.0. D) 4.0. E) none of the above.
?What is the current EPA fine levied on any business or individual that either tampers with, or fails to report, tampering with any emissions control device or programming?
A. ?$3,000 B. ?$10,000 C. ?$25,000 D. ?$37,500
What does a roll-out switch do?
A) It shuts off the gas valve if flames are sensed outside the combustion area. B) It allows the combustion components to be rolled out of the combustion chamber. C) It ensures proper clearance between the furnace and nearby walls. D) It checks to make sure the blower has not rolled out of position on the unit.