A Vacuum Reading of ________ of Mercury on the Vacuum

question 60

Multiple Choice

A vacuum reading of ________ of mercury on the vacuum testing fixture indicates a valve with no leakage.

• A) 5"
• B) 10"
• C) 15"
• D) 25"

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Definitions:

Class 8 Highway Truck

A classification for heavy trucks as defined by the Department of Transportation, based on their gross vehicle weight rating (GVWR), typically over 33,000 pounds.

Tire Sizes

Refers to the specifications of tires, including width, aspect ratio, and diameter, which determine their compatibility with different vehicles and driving conditions.

Flat Spot

An area on a tire that has become flat due to prolonged stationary pressure, causing uneven tire wear and potentially impacting vehicle handling.

Steer Axle Tire

A tire specifically designed for the front axle of a vehicle, offering precise steering control and responsiveness.