The proper oil level in a vacuum pump should be:
A. above the top of the sight glass
B. below the bottom of the sight glass
C. in the middle of the sight glass
D. at the bottom of the sight glass
Answer: C
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When an NTC thermistor is used as an oil temperature sensor, what happens to the signal voltage when oil temperature increases?
A. nothing B. decreases C. increases D. reverse biases
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The two basic types of diodes are the silicon and the _____.
a. aluminum b. germanium c. tungsten d. magnesium
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Identify and define the two factors determining quality grade.
What will be an ideal response?
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When a circuit has only one path, the _____ is the same at any point.
A. voltage B. current C. power D. resistance
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