This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A major difference between three-phase motors and single-phase motors is that: A) Three-phase ... (Read 149 times)

jon_i

  • Hero Member
  • *****
  • Posts: 549
on: Jul 24, 2018
A major difference between three-phase motors and single-phase motors is that:
 
  A) Three-phase motors do not need any type of starting components.
  B) Three-phase motors use three times as much current.
  C) Three-phase motors have a laminated iron rotor.
  D) Three-phase motors use three sets of starting components.

Question 2

If a voltmeter shows a reading of 240 V across the thermal limit to a strip heater on an electric furnace, it indicates:
 
  A) The limit is close, completing the circuit to the heater.
  B) The limit is open, completing the circuit to the heater.
  C) The limit is closed, breaking the circuit to the heater.
  D) The limit is open, breaking the circuit to the heater.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dawsa925

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

D


jon_i

  • Member
  • Posts: 549
Reply 2 on: Jul 24, 2018
:D TYSM

irishcancer18

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Single bull elk are vulnerable to predation by wolves. Single bull elk are vulnerable to predation by wolves.
Major Diagnostic Categories of Mental Disorders Major Diagnostic Categories of Mental Disorders
Nonpharmacologic Therapies for Major Depression Nonpharmacologic Therapies for Major Depression
Earth’s Major Lithospheric Plates Earth’s Major Lithospheric Plates
What's the Difference Between England, Great Britain, and United Kingdom? What's the Difference Between England, Great Britain, and United Kingdom?
Example of a single-nucleotide polymorphism (SNP) Example of a single-nucleotide polymorphism (SNP)
Video: Carbon fixing adaptations Animation

For a complete list of videos, visit our video library