Harmonics on single-phase powerlines are generally caused by a device such as a _____.
A. ?triac light dimmer
B. lamp with an incandescent bulb
C. single-speed motor
D. ?heater
Answer: A
You might also like to view...
Describe the job of the processor.
What will be an ideal response?
In a standard doorbell, the ____________________ and contact points are ungrounded, while the armature and terminal E are grounded to the case.
Fill in the blank(s) with the appropriate word(s).
Most of the money raised to finance World War II came through
A. tariff collections. B. excise taxes on luxury goods. C. raising income taxes. D. voluntary contributions. E. borrowing.
Technician A says that class A fires consist of burning liquid. Technician B says that water should be used to extinguish class B fires. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician