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 140 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
Excellent

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

6-8 Earth’s Major Tectonic Plates 6-8 Earth’s Major Tectonic Plates
Major Impacts on Mercury and on Our Moon Major Impacts on Mercury and on Our Moon
A replaceable PROM used in an older General Motors computer. Notice that the sealed access panel ... A replaceable PROM used in an older General Motors computer. Notice that the sealed access panel ...
Major discoveries in Medicine and Pharmacy Major discoveries in Medicine and Pharmacy
Difference Between Solar and Sidereal Day Difference Between Solar and Sidereal Day
Homologous recombination: single versus double crossovers Homologous recombination: single versus double crossovers
Video: Gastrulation: cross section of the frog

For a complete list of videos, visit our video library