When Chips and Flakes of Metal Separate from a U-Joint

question 48

Multiple Choice

When chips and flakes of metal separate from a U-joint trunnion race due to metal fatigue,how would the failure be categorized?

• A) brinelling
• B) false brinelling
• C) spalling
• D) galling

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Definitions:

Compound

A material created when two or more elements chemically combine in definite ratios.

2,4-dimethylpyridine

An organic compound with a pyridine ring and methyl groups at the 2nd and 4th positions.

Structure

The arrangement or organization of parts to form a whole, in context, typically referring to the molecular geometry or arrangement of atoms within a compound.

Piperidine

An organic compound, a nitrogenous six-membered ring, used as a building block in the synthesis of pharmaceuticals and other organic compounds.