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

Author Question: A solenoid is ________. A) a reversing relay that is used to start heat pumps B) a valve that is ... (Read 62 times)

BRWH

  • Hero Member
  • *****
  • Posts: 553
A solenoid is ________.
 
  A) a reversing relay that is used to start heat pumps
  B) a valve that is controlled (opened and closed) by gravity and springs
  C) a valve that is controlled (open and closed) by springs and a magnetic field produced by a coil

Question 2

The normally closed contacts of a relay ________.
 
  A) pass current at all times whether or not the coil is energized
  B) pass current when the coil is not energized
  C) pass current when the coil is energized



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bdobbins

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

C

Answer to Question 2

B




BRWH

  • Member
  • Posts: 553
Reply 2 on: Jul 26, 2018
YES! Correct, THANKS for helping me on my review


ricroger

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

For a complete list of videos, visit our video library