Miss Natalia

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  • Doctor of Education in Educational Leadership with a Specialization in Educational Technology
    Phoniex University
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    a21, Inc.
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Category > Chemistry Posted 16 Jun 2017 My Price 10.00

Activated carbon in the canisters filters gasoline vapors by the process of adsorption.

TOTAL OF 8 QUESTIONS. 2 ARE DISCUSSION QUESTIONS. 6 MULTIPLE CHOICE. SEE ATTACHMENT.

1.    A contractor was hired to do some maintenance work inside a grain silo. Assuming the facility is at sea level, what is the minimum level of oxygen necessary for the contractor to carry out his or her task without using a supplied air respirator?

 

   

16.0%
   

19.5%
   

20.9%
   

23.5%

 

 

 A soil vapor extraction system equipped with carbon canisters is used to remediate gasoline contamination at a gas station. Which of the following statement is TRUE?

 

   

Activated carbon in the canisters filters the gasoline vapors by the process of absorption.
   

Activated carbon is charcoal heated in the absence of air at low temperatures.
   

Activated carbon is an effective filter medium for gasoline vapors because of its small surface area.
   

Activated carbon in the canisters filters gasoline vapors by the process of adsorption.

 

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Miss Natalia
(14)
Status NEW Posted 16 Jun 2017 06:06 AM My Price 10.00

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