How are auxiliary electric heaters typically sized for a heat pump system?
a. 5kW per 8,000 cu ft of building volume
b. 2 times compression heat capacity
c. 10kW per 1,000 sq ft of floor space
d. at or near 100 percent of the building's heat load
d
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Contour farming helps to prevent ____________________
Fill in the blank(s) with correct word
If a foundation measures 60' by 20', what is the area in square feet of the foundation.
What will be an ideal response?
What is the advantage of controlling the air-fuel ratio to a stoichiometric ratio?
A. A stoichiometric ratio reduces the production of toxic emissions within the engine's cylinders B. A stoichiometric ratio helps the three-way catalytic converter perform at its peak efficiency C. A stoichiometric ratio increases the potential for performance when the engine is under heavy load D. Both A and B
The subsequent problems deal with the following PIC circuit, where the PORTB pins are attached directly up to the individual segments of a 7-segment LED display as shown. (Note - All seven segments "a"-"g" are wired as shown for segment "g," with a pull-up resistor to 5V.) Assume the PORTB pins are declared as outputs.
Which of the following statements would make a "2" appear on the LED display?
A. PORTB = %00000010 B. PORTB = %00010010 C. PORTB = %01000000 D. PORTB = %11101101 E. PORTB = %11111101