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Author Question: Which type of cylinder is produced from nonheat-treated carbon-steel? a. 3 c. 3AA b. 3A d. ... (Read 36 times)

appyboo

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on: Jul 16, 2018
Which type of cylinder is produced from nonheat-treated carbon-steel?
 
  a. 3 c. 3AA
  b. 3A d. 3AAA

Question 2

Carbon dioxide can be obtained by which of the following methods?
 
  a. Heating uranium ore
  b. Combustion of natural gas
  c. Fractional distillation of liquid air
  d. Oxidizing ammonia at high temperatures


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Brummell1998

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
3AA means heat-treated, high-strength steel; 3 and 3AAA are not applicable.

Answer to Question 2

ANS: B
Unrefined carbon dioxide can be obtained from the combustion of coal, natural gas, or other carbonaceous fuels. Helium can be obtained by heating uranium ore. The two methods most commonly used to prepare oxygen are the fractional distillation of liquid air and the physical sep-aration of atmospheric air. Nitric oxide can be prepared by oxidizing ammonia at high tempera-tures (i.e., 500 C and above).


appyboo

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Reply #2 on: Jul 16, 2018
TY


Brummell1998

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Reply #3 on: Jul 16, 2018
Happy to Help


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