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Author Question: Natural gas is: A) Heavier than air. B) Lighter than air. C) Either lighter or heavier than air ... (Read 179 times)

ashley

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on: Jul 27, 2018
Natural gas is:
 
  A) Heavier than air.
  B) Lighter than air.
  C) Either lighter or heavier than air depending on the characteristics of the local gas.
  D) About the same density as air.

Question 2

Most communicating systems are wired with four wires. They are:
 
  A) One wire for power, one for cooling, one for heating, and one for fan.
  B) Two wires for 24 V power and two for communication.
  C) Communication lines 1, 2, 3, and 4.
  D) Power lines 1, 2, 3, and 4.


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Jadwiga9

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


ashley

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

ricroger

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Reply 3 on: Yesterday
Excellent

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