Practice question

During a pre-trip inspection, what is a commercial driver verifying when checking the vehicle's drive shaft and universal joints (U-joints)?

The drive shaft paint condition
That the drive shaft is not bent or cracked, and that the U-joints are secure, not loose, and free of excessive play or grease leaks
The gear ratio of the drive shaft
That the drive shaft is made of aluminum

Answer: B — That the drive shaft is not bent or cracked, and that the U-joints are secure, not loose, and free of excessive play or grease leaks

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