« previous next »

Author Question: What is a redundant gas valve? A) a gas valve that has no real purpose B) a gas valve that was ... (Read 132 times)

berenicecastro

  • Hero Member
  • *****
  • Posts: 581
on: Jul 26, 2018
What is a redundant gas valve?
 
  A) a gas valve that has no real purpose
  B) a gas valve that was once necessary on older furnaces but is no longer used
  C) a gas valve that is used in case the main valve quits working
  D) a gas valve with two valves mechanically in series

Question 2

What could cause the tungsten electrode to turn gray or blue?
 
  A) The operator had only 1/4 to 1 inch stick out, and that is not enough to prevent electrode burning.
  B) Not enough electrodes stick out.
  C) Answers A and B are both correct.
  D) Not enough post flow
  E) Too much post flow


aprice35067

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 26, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

berenicecastro

  • Hero Member
  • *****
  • Posts: 581
Reply #2 on: Jul 26, 2018
Thank you!


aprice35067

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Jul 26, 2018
Always glad to help...


« previous next »
 

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Aortic valve. Aortic valve.
(a) Homologous traits are similar due to shared ancestry. (b) Analogous traits (bats’, birds’, and f (a) Homologous traits are similar due to shared ancestry. (b) Analogous traits (bats’, birds’, and f
The camshaft is rotated in relation to the camshaft by the PCM to provide changes in valve timing. The camshaft is rotated in relation to the camshaft by the PCM to provide changes in valve timing.
The EGR valve pintle is pulse-width modulated and a three-wire potentiometer provides ... The EGR valve pintle is pulse-width modulated and a three-wire potentiometer provides ...
Marketing: Real People, Real Choices Marketing: Real People, Real Choices
The TaqMan approach to quantitative real-time PCR (qPCR) The TaqMan approach to quantitative real-time PCR (qPCR)
Video: Knee Animation

For a complete list of videos, visit our video library