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

Author Question: Most switches used for safety controls in HVACR circuits: A) Are normally closed and wired in ... (Read 141 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
Most switches used for safety controls in HVACR circuits:
 
  A) Are normally closed and wired in series with the load they protect.
  B) Are normally open and wired in parallel with the load they protect.
  C) Are normally closed and wired in parallel with the load they protect.
  D) Are normally open and wired in series with the load they protect.

Question 2

The simplest plasma arc cutting units use filtered _____.
 
  a. carbon dioxide
  b. nitrogen
  c. compressed air
  d. helium



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lauravaras

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

A

Answer to Question 2

c




sheilaspns

  • Member
  • Posts: 567
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review


irishcancer18

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

For a complete list of videos, visit our video library