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Chapter 9 Basic Electric Motors Q&A (Verified)
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Chapter 9 Basic Electric Motors Q&A (Verified)
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Chapter 9 Basic Electric Motors Q&A (Verified)A permanent magnet is a piece of magnetic material that has been magnetized
and can hold its magnetic strength for a reasonable length of time. ✔️
true
Which of the following capacitors could be used to replace a 188-uF, 250 V
starting capacitor? ✔️ 200 uF, 250 V
If the south pole of a bar magnet is brought close to the north pole of another
bar magnet, they will ____________________ each other. ✔️ attract
The resistance-start-induction-run motor has only a starting winding.
✔️ false
The electromagnet is a magnet produced through ____________________.
✔️ electricity
The capacitor consists of two aluminum plates with an insulator between
them. ✔️ true
An alternating current motor's speed is determined by the frequency of the
power supply only. ✔️ false
The speed of an alternating current electric motor is determined by the
number of motor poles and the frequency of the power supply.
Which of the following is a common use of a shaded pole motor? ✔️
propeller fans
Motors are selected mainly because of the starting torque required for the
motor to perform its function. ✔️ True
Two types magnets are in use today: the electromagnet and the
____________________ magnet. ✔️ permanent
All magnets have three poles. ✔️ false
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