____ are fast acting and are often used to measure the speed of rotating objects.
a. Proximity detectors
b. Ultrasonic detectors
c. Hall effect sensors
d. Proximity sensors
c. Hall effect sensors
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?List the conditions when the On/Off switch in an electronic air suspension system must be turned off.
What will be an ideal response?
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In glass optical fibers, the index of refraction is approximately 1.46 to ____.
A. 1.48 B. 1.50 C. 1.51 D. 1.53
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Find v(t) for t > 0 in the circuit in Fig. 8.81.
 FIGURE 1.png)
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The two principal parts of an AC induction motor are the:
A) Bearing and sleeve. B) Housing and capacitor. C) Rotor and stator. D) Coil and bushing.
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