Freons Have Been Implicated in the Depletion of Which of the Following

question 54

Multiple Choice

Freons have been implicated in the depletion of which of the following atmospheric gases?

• A) carbon dioxide
• B) nitrogen
• C) oxygen
• D) ozone

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Definitions:

Clearance

The amount of space or distance allowed between two parts for proper fit, function, or movement.

Interference Fits

A type of fit in mechanical engineering where two parts are so tightly fit together that they deform each other to stay in place.

Locational Transition Fit

A type of fit defined by tolerances that allows for a limited amount of either interference or clearance between assembled parts.

Clearance

The intentional space or gap between two mating parts to ensure there is no unwanted friction or binding during operation.