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Author Question: Per NFPA 90A , fiberglass duct may be used in systems that operate with a maximum temperature of ... (Read 58 times)

Garrulous

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on: Jul 24, 2018
Per NFPA 90A , fiberglass duct may be used in systems that operate with a maximum temperature of _____.
 
  a. 100F
  b. 150F
  c. 200F
  d. 250F

Question 2

A carburizing/reducing flame has a white feather created by excess _____.
 
  a. air
  b. oxygen
  c. acetylene
  d. acetone


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stano32

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Reply #1 on: Jul 24, 2018
Answer to Question 1

d

Answer to Question 2

c


Garrulous

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Reply 2 on: Jul 24, 2018
Wow, this really help

ktidd

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Reply 3 on: Yesterday
Excellent

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