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

Author Question: Variable frequency drives (VFD) reduce the speed of AC motors by: A) Controlling the frequency ... (Read 143 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
on: Jul 26, 2018
Variable frequency drives (VFD) reduce the speed of AC motors by:
 
  A) Controlling the frequency (Hz) of the power to the motor.
  B) Applying an adjustable magnetic brake to the motor.
  C) Controlling the voltage available to the motor, like a light dimmer.
  D) Limiting the current to the motor.

Question 2

In a firm, fixed price contract, the contractors profit is _____.
 
  a. subject to penalties and incentives
  b. incorporated into the bid
  c. negotiated separately from labor and material costs
  d. tied to project schedule performance


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

javimendoza7

  • Sr. Member
  • ****
  • Posts: 293
Reply #1 on: Jul 26, 2018
Answer to Question 1

A

Answer to Question 2

b


codyclark

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 26, 2018
Thanks


javimendoza7

  • Sr. Member
  • ****
  • Posts: 293
Reply #3 on: Jul 26, 2018
Welcome :)


« previous next »
 

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

a) Using a soft pillow rather than a hard bolster under the knees will reduce pressure on the back ... a) Using a soft pillow rather than a hard bolster under the knees will reduce pressure on the back ...
A TECH 2 scan tool is the factory scan tool used on General Motors vehicles. A TECH 2 scan tool is the factory scan tool used on General Motors vehicles.
How does PCA reduce the dimension of a statistical problem? How do you select the reduced ... How does PCA reduce the dimension of a statistical problem? How do you select the reduced ...
What is the frequency of 20-mm microwaves? (c = 3.0 × 108 m/s) A) 100 MHzB) 400 MHzC) 15 GHzD) ... What is the frequency of 20-mm microwaves? (c = 3.0 × 108 m/s) A) 100 MHzB) 400 MHzC) 15 GHzD) ...
Frequency distribution of phenotypes from the possible offspring in Figure 5.7. Height of the offspr Frequency distribution of phenotypes from the possible offspring in Figure 5.7. Height of the offspr
If the frequency equals 60 Hz in Figure 10-1, what is the value of capacitance? If the frequency equals 60 Hz in Figure 10-1, what is the value of capacitance?
Video: Biological organic compounds

For a complete list of videos, visit our video library