MTO Commercial Vehicle License 3 — Questions and Answers
Question 1: When must a CDL driver perform a pre-trip inspection?
- Once per week
- Before each trip (Correct answer)
- Only when transporting hazardous materials
- Once per month
Correct answer: Before each trip
Federal regulations require CMV drivers to conduct a thorough pre-trip inspection before every trip to identify defects.
Question 2: The 'T' endorsement on a CDL is required to tow which type of vehicle?
- Tank vehicles
- Double/triple trailers (Correct answer)
- School buses
- Livestock trailers
Correct answer: Double/triple trailers
The T (Double/Triple Trailers) endorsement authorizes a driver to pull double or triple trailer combinations.
Question 3: A commercial driver must report a traffic conviction in a non-CMV to their employer within:
- 5 days
- 10 days
- 30 days (Correct answer)
- 60 days
Correct answer: 30 days
CDL holders must notify their employer within 30 days of any traffic conviction, regardless of the vehicle type involved.
Question 4: What blood alcohol concentration (BAC) is the legal limit for CDL drivers operating a CMV?
- 0.08%
- 0.04% (Correct answer)
- 0.02%
- 0.01%
Correct answer: 0.04%
The federal limit for commercial drivers operating a CMV is 0.04% BAC, half the standard limit for non-commercial drivers.
Question 5: Which of the following vehicles requires a Class B CDL at minimum?
- A combination vehicle with GCWR of 30,000 lbs and towed unit of 12,000 lbs
- A single vehicle with GVWR of 30,000 lbs (Correct answer)
- A pickup truck towing a boat under 10,000 lbs
- A motorcycle over 1,000 cc
Correct answer: A single vehicle with GVWR of 30,000 lbs
A single vehicle with a GVWR of 26,001 lbs or more requires a Class B CDL.
Question 6: During a roadside Level I inspection, an out-of-service order for a driver due to HOS violations means the driver must:
- Pay a fine and continue driving
- Stop driving until the required off-duty time is accumulated (Correct answer)
- Switch to a co-driver immediately
- Reduce speed and complete the trip
Correct answer: Stop driving until the required off-duty time is accumulated
An out-of-service order prohibits the driver from operating a CMV until they accumulate the required off-duty hours.
Question 7: How far in advance must a CMV driver notify their state of licensing when changing their domicile state?
- 10 days
- 30 days (Correct answer)
- 60 days
- 90 days
Correct answer: 30 days
CDL holders must obtain a CDL from their new state of domicile within 30 days of establishing residency.
MTO Commercial Vehicle License 3
When must a CDL driver perform a pre-trip inspection?