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 171 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?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

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?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

J. M. W. Turner, Rain, Steam, and Speed—The Great Western Railway. J. M. W. Turner, Rain, Steam, and Speed—The Great Western Railway.
Speed of Light in Different Mediums Speed of Light in Different Mediums
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ... If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ...
A tsunami (tidal wave) traveling across deep water can have a speed of 750 km/h k m / h and a ... A tsunami (tidal wave) traveling across deep water can have a speed of 750 km/h k m / h and a ...
The relationship between allelic frequency and genotypic frequency in a population that is in Hardy- The relationship between allelic frequency and genotypic frequency in a population that is in Hardy-
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library