When troubleshooting an oil furnace, the technician notices that the oil burner fires and burns normally for 90 seconds, and then shuts down. What is the most likely problem?
A. defective limit switch
B. defective oil burner fan motor
C. defective room thermostat
D. defective cad cell
Answer: D
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Agricultural Education was once called _____
a. Vocational Agriculture c. Studies in Agriculture b. Agriculture Programs d. Farm Science
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Gas-fired rooftop units are normally vented through:
A) Draft hoods connected directly to the unit. B) Double-wall vent pipe connected to the top of the unit. C) Double-wall vent pipe connected to the side of the unit. D) A separate power venter.
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Identify the basic parts of an AC motor
What will be an ideal response?
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An N-channel JFET has three elements: source, gate, and drain
Indicate whether the statement is true or false
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