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Author Question: What is the purpose of the limit switch? A) It improves efficiency by limiting furnace run time ... (Read 53 times)

MirandaLo

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on: Jul 26, 2018
What is the purpose of the limit switch?
 
  A) It improves efficiency by limiting furnace run time
  B) It limits the indoor blower fan speed to supply a regulated supply of warm air
  C) It prevents overheating by interrupting the circuit to the gas valve
  D) It improves efficiency by limiting the supply air temperature

Question 2

What will happen if the operator grinds a tungsten electrode so the grind marks run around the diameter of the tungsten?
 
  A) The TIG operator could lose control and break the tungsten.
  B) The grinding marks will cause the arc to make even ripples in the weld.
  C) An unstable arc may result.
  D) The grinding marks will cause the arc to make deeper weld penetrations.


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dmurph1496

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Reply #1 on: Jul 26, 2018
Answer to Question 1

C

Answer to Question 2

C


MirandaLo

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Reply 2 on: Jul 26, 2018
Gracias!

jomama

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Reply 3 on: Yesterday
Wow, this really help

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