A Piston Compresses a Gas,while at the Same Time Heat

question 109

Multiple Choice

A piston compresses a gas,while at the same time heat is lost to the surroundings.The temperature of the gas rises.The amount of temperature rise is governed by

• A)the first law of thermodynamics.
• B)the second law of thermodynamics.
• C)specific heat capacity.
• D)a heat pump.
• E)none of the above.

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Definitions:

Theoretical Size

The ideal, nominal size of a part or feature as defined in drawings, before tolerances are applied.

Limits

In engineering and manufacturing, limits refer to the maximum and minimum dimensions a part can have to be considered acceptable.

Allowance

The intentional difference in dimensions between mating parts to ensure a proper fit.

Basic Hole System

A hole basis system of fits in manufacturing where the hole is the component with the basic size, and the shafts are adjusted for different fits.