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An Engine Has Excessive Valve Guide Wear

question 33

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An engine has excessive valve guide wear. Technician A says to ream the guide and install a new valve with an oversized stem. Technician B says to knurl the valve stem and reinstall it in the guide. Who is right?


Definitions:

Decrease Percentage

The rate at which a quantity diminishes in comparison to its original value.

Sole Proprietorship

A business that is owned by one person.

Public Corporation

A corporation where any person can purchase a share of stock in the corporation.

Fast-moving Average

A statistical method used in analyzing data points by creating a series of averages of varying subsets from the complete dataset.

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