Which type of wire is typically used to construct electric heating elements?
A. copper
B. aluminum
C. nichrome
D. any of the above
Answer: C
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What will be an ideal response?
How does a cooling tower remove energy from the water it is circulating?
A) It cools the refrigerant by evaporating a small portion of the refrigerant to the air. B) It cools the water flowing through it by passing it over ice that is made during off-peak hours. C) It cools the water flowing through it by evaporating a small portion of the water. D) It cools the water flowing through it by using a separate compression refrigeration system.
Reverse breakdown current is carried by:
A) majority carrier. B) minority carriers. C) pentavalent impurity atoms. D) trivalent impurity atoms.
__________ is a measure of the amount of light energy that falls on the receiver beyond the minimum amount of light required to operate the sensor amplifier.
A. Sensitivity B. Excess gain C. Field of view