The evaporator of a window air conditioner should operate ____.
A. far below freezing temperature
B. far above freezing temperature
C. just above freezing temperature
D. at 15°F
Answer: C
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Cuando dos conductores ingresan a una caja, se empalman y luego salen, se cuentan como _____ conductor(es).
a. 1 b. 2 c. 3 d. 4
Mrs. Flowers has two combines to harvest 525 acres of corn. One combine has a 12-row header and the other has an 8-row header. The combine with the 12-row header harvests 10.4 acres per hour using 1.2 gallons of diesel fuel per acre. At the same time, the combine with the 8-row header harvests 7.8 acres per hour using 1.3 gallons of diesel fuel per acre.
a. Using both combines, how many acres do they harvest per hour? b. How many hours does it take them to harvest the corn? c. How many acres does each combine harvest? d. How many gallons of diesel fuel are used?
Which of the following terms identifies materials whose price is set by market supply and demand?
A) standard products B) items of small value C) made-to-order items D) commodities
The advantage of a phototransistor over a photodiode detector is that __________.
A. it operates at higher frequencies B. it has greater light sensitivity C. it is linear D. it has small temperature coefficients