Question 1

A motor carrier tells a CDL driver the truck was serviced at a certified shop three hours ago and no pre-trip inspection is needed. Under 49 CFR 392.7, what must the driver do?

Accepted Answer

The driver must still perform a full pre-trip inspection. Federal regulations make the driver responsible for confirming the vehicle is safe to operate — this obligation cannot be waived by the carrier regardless of how recently the vehicle was serviced.

Question 2

A driver makes three local runs in the same vehicle and returns to the home terminal after each run without handing the vehicle off to another driver. When is a DVIR required under FMCSA Part 396.11?

Accepted Answer

One DVIR at the end of the last run for that day. When the same driver operates the same vehicle on multiple trips with no handoff, a single daily report satisfies the federal regulation.

Question 3

During the engine compartment phase of a pre-trip, a driver notices a slow seep of power steering fluid from a hose connection. The fluid level remains within the acceptable range. What is the correct action?

Accepted Answer

Document the leak in the DVIR as a defect. A slow seep may permit departure depending on severity, but any fluid leak must be recorded. If the leak worsens to an active drip or stream, it becomes an out-of-service condition requiring repair before operation.

Question 4

When inspecting the engine compartment, which fluid levels must a driver check?

Accepted Answer

Engine oil level, coolant level, and power steering fluid level must all be checked.

Question 5

What is the correct tire tread depth requirement for front tires on a commercial vehicle?

Accepted Answer

Front tires must have at least 4/32 of an inch of tread depth.

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