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The tanker endorsement applies to drivers who wish to drive a tank in Class A, B, or C CDL. To add this endorsement to your CLP/CDL, you must pass a knowledge test on the problems posed by large volume liquid cargos. The Minnesota CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The MN tanker test covers the following sections of the Minnesota CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this MN tanker practice test now to prepare for the actual test!
1. What is Gross Vehicle Weight?
The total weight of a single vehicle, excluding its load
The total weight of the cargo
The total weight of a combination of vehicles excluding the load
The total weight of a single vehicle, including its load
2. If a tire fails while you are driving, you should:
brake as hard as possible.
stay off the brake until your vehicle has slowed down.
stop on the roadway if possible.
call your supervisor for instructions.
3. At a rest area, you discover your hazardous materials shipments is leaking. There is no phone around. You should:
keep driving slowly until you reach a truck stop.
continue driving in order to find a phone.
never park your vehicle.
send someone else for help and give that person all of the necessary information.
4. Passive railroad crossings:
do not require you to recognize the crossing.
require drivers to decide if there is sufficient clear space to cross safely.
have a traffic control device installed at the crossing to regulate traffic.
All of the above.
5. How can drivers help control surge?
By decreasing following distance.
By braking far in advance of a stop.
By releasing the brakes soon when coming to a stop.
All of the above.
6. If a tank is leaking, you should:
get the leak fixed immediately.
call your dispatcher or supervisor for instructions.
flash your brake lights to warn other motorists.
continue the trip until you can pull into a service station.
7. Which of the following is a clue suggesting a shipment of HazMat?
The type of business is the shipper is in.
Tanks with diamond labels or placards on the premises.
Type of package is being shipped.
All of the above.
8. When you double your speed, the braking distance is:
4 times longer.
the same.
2 times longer.
3 times longer.
9. To make the brakes work, air brakes use:
carbon monoxide.
compressed air.
hydraulic air.
10. Retarders:
can be noisy and may not be permitted everywhere.
increase fuel efficiency.
improve traction.
help to increase brake pressure.
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Tanker Test - MN CDL

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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