Exam (elaborations)
Chapter 9 Basic Electric Motors Q&A (Verified)
- Institution
- Chapter 9 Basic Electric Motors Q&A
Chapter 9 Basic Electric Motors Q&A (Verified)
[Show more]
Content preview
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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Studyhall. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$12.85. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82871 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now