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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 Illinois CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The IL tanker test covers the following sections of the Illinois CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this IL tanker practice test now to prepare for the actual test!
1. Hydroplaning:
only happens when tire pressure is higher than normal.
only occurs at extremely high speeds.
never occurs at speeds below 40 mph.
can occur at speeds as low as 30 mph.
2. In baffled tanks, the baffles help to control:
the top-to-bottom liquid surge.
the forward and backward liquid surge.
control the brakes.
the side-to-side liquid surge.
3. Your vehicle may take longer to stop:
if you are driving in hot weather.
if the tank is full of dense liquid.
if the road is dry.
if the tank is empty.
4. Tire load is defined as:
the minimum tire pressure.
the minimum safe weight a tire can carry at a specified pressure.
the weight transmitted to the ground by 1 tire.
the maximum safe weight a tire can carry at a specified pressure.
5. Brake fade results from:
wet brakes.
excessive heat caused by using brakes too much.
using brakes in cold weather.
All of the above.
6. You should be extremely cautious when driving unbaffled liquid tankers, especially when:
starting or stopping.
going uphill.
they are empty.
None of the above.
7. Before driving a vehicle with a dual air system, the air compressor should build up a minimum of _____ pressure in both the primary and secondary systems.
10 psi
75 psi
50 psi
100 psi
8. Controlled braking:
must be used when you need to turn sharply while braking.
involves pumping the brakes while keeping steering wheel movements very small.
involves locking the wheels and then releasing the brakes.
can be used to keep your vehicle in a straight line and allow you to turn if necessary.
9. Emergency equipment is:
only required when transporting hazardous materials.
10. When approaching a stopped school bus, drivers must be aware that:
the bus may suddenly start up and drive into your way.
students may start to get out of the bus.
passengers may cross in front of or behind the bus.
All of the above.
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IL Tanker Test

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