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Question

Difficulty: EasySteering System Inspection

While checking the power steering system of a commercial vehicle before a trip, what is the maximum allowable rotational play in the steering wheel before the front tires must begin to move?

  1. A
    No more than 25 degrees
  2. B
    No more than 45 degrees
  3. No more than 10 degreesAnswer
  4. D
    No more than 30 degrees

Answer

No more than 10 degrees
According to commercial motor vehicle safety inspection standards, steering wheel free play must not exceed 10 degrees (which equals roughly 2 inches of movement on a 20-inch wheel) before the front wheels respond. Any play beyond 10 degrees can make the vehicle difficult to control and signals mechanical wear.

Step-by-Step Solution

1
Recall the established safety tolerance for commercial vehicle power steering free play.
Standard regulations dictate that steering play must not exceed 10 degrees.
Excessive play indicates loose linkage, a worn steering gearbox, or damaged joints that impair vehicle control.
2
Match the 10-degree standard to the provided choices.
The option specifying no more than 10 degrees is the correct limit.
Any value exceeding 10 degrees represents an unsafe condition requiring maintenance.

Key Concept

Steering Wheel Free Play Tolerance
Estimated Time:45s
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Topics

Steering System Inspection

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