When troubleshooting a residential air conditioning system, the technician turns the fan switch to ON and nothing happens. What is the most likely problem?

A. defective subbase
B. defective fan motor
C. defective fan control
D. any of the above


Answer: D

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

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The term cultivar refers to a specific species name

Indicate whether the statement is true or false

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A ____ receptacle outlet shall be installed at an accessible location for the servicing of heating, air-conditioning, and refrigeration equipment.

A. 125-volt, dual-phase, 15- or 20-ampere-rated B. 125-volt, single-phase, 15- or 20-ampere-rated C. 112-volt, single-phase, 20-ampere-rated D. 112-volt, dual-phase, 15- or 20-ampere-rated

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