This topic contains a solution. Click here to go to the answer

Author Question: A device that does not switch on and off motors directly is a: A) Heavy-duty relay. B) Contactor. ... (Read 112 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
A device that does not switch on and off motors directly is a:
 
  A) Heavy-duty relay. B) Contactor. C) Light-duty relay. D) Motor starter.

Question 2

An air conditioner with a thermostatic expansion valve is operating with a condenser saturation temperature of 95F and a liquid-line temperature of 92F. The factory-specified subcooling for the current operating condition is 10F. The technician should:
 
  A) Move some of the charge from the low side of the system to the high side of the system to balance the charge.
  B) Leave the charge alone because it is cooling even better than factory specifications.
  C) Add charge because the system is undercharged.
  D) Recover charge because the system is overcharged.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Answer to Question 1

C

Answer to Question 2

C




ssal

  • Member
  • Posts: 572
Reply 2 on: Jul 24, 2018
Excellent


amcvicar

  • Member
  • Posts: 341
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

For a complete list of videos, visit our video library