If a PWM signal is high for 5 ms and low for 10 ms during a single period, what is the duty cycle of the signal?
A. 300%
B. 200%
C. (1/2) * 100%
D. (1/3) * 100%
E. (1/4) * 100%
Answer: D
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Technician A says that the computer can be used to control the output of the alternator by controlling the field current. Technician B says that voltage regulators control the alternator output by controlling the field current through the rotor. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
If an electrical load in a split system air conditioner is not working, the technician must determine if the problem is
A) in the load itself or in the switches that control the load B) repairable or not repairable C) in the line voltage or the low voltage D) chronic or acute
The part that MOST-Likely allows the wiper interval to be adjusted is the:
A. rheostat B. capacitor C. armature D. fuse
A system is described by the state equations,
