After installing a new electric furnace, the technician measures the temperature rise and finds that it exceeds the manufacturer's specifications. To reduce the temperature rise, the technician should:
A) Increase the fan speed. B) Decrease the fan speed.
C) Reduce the incoming voltage to the furnace. D) Unwire one of the strip heaters.
A
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a. 10" blade b. 12" blade c. 24" blade d. 30" blade
When a control is required to control space or product temperature, it is called a ____.
A. safety device B. thermostat C. pressure control D. speed control
Technician A says that superchargers are driven by the engine crankshaft. Technician B says that superchargers use a synthetic oil inside the unit. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
____________________ ft/lb of work is accomplished when an 800-lb. condensing unit is lifted to the top of a 40 ft. building.
Fill in the blank(s) with the appropriate word(s).