A Machinist Needs to Remove a Tight Fitting Pin of Material

question 54

Multiple Choice

A machinist needs to remove a tight fitting pin of material A from a hole in a block made of material B.The machinist heats both the pin and the block to the same high temperature and removes the pin easily.What statement relates the coefficient of thermal expansion of material A to that of material B?

• A) Material B has a greater coefficient of expansion than does material A.
• B) The situation is not possible because heating block B will shrink the hole in the material as the material expands with increasing temperature.
• C) Material B has the same coefficient of expansion as does material A.
• D) Material A has a greater coefficient of expansion than does material B.

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Definitions:

Sociopath

A term often used to describe a person with antisocial personality disorder, characterized by a lack of empathy and often, but not exclusively, manifesting in manipulative, deceitful, or criminal behavior.

Serial Killer

An individual who commits a series of murders, often with no apparent motive and typically following a characteristic, predictable behavior pattern.

Limited Prosocial Emotions

Characterized by a lack of empathy, remorse, or concern for the feelings of others, often seen in certain psychological conditions.

Lack Of Remorse

A situation or condition where an individual does not feel regret or guilt for actions that typically would elicit such emotions.