CDL DOUBLES PRACTICE TEST ILLINOIS
11.
On any upgrade, gravity:
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slows you down.
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doubles your speed.
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speed you up.
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doesn't affect your speed.
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12.
Retarders:
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help prevent accidents by applying extra braking power to the non-drive wheels.
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apply their
braking power whenever
you push on the accelerator.
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help slow a vehicle and reduce brake wear.
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All of the above.
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13.
When the spring brakes are on, you should:
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exceed the posted speed limit.
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press the accelerator.
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not push the brake pedal down.
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pump the brakes.
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14.
Which of the following will NOT help you prevent rollover?
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Driving slowly around turns.
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Using the controlled braking method.
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Keeping the cargo as close to the ground as possible.
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All of the above.
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15.
When more cargo is piled up in a truck, the center of gravity moves:
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higher up from the road.
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to the right side of the truck.
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to the left side of the truck.
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closer to the ground.
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16.
Exhaust system parts should NOT:
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be loose.
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rub against fuel system parts.
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rub against tires.
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All of the above.
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17.
Which of the following is NOT true? ABS (antilock braking system):
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is an addition to your normal brakes.
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is required on all truck tractors with air brakes built on or after March 1, 1997.
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increases your normal braking capability.
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only activates when the wheels are about to lock up.
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18.
In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
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assume the car left the roadway and change lanes as normal.
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wait until you are sure the car isn't in your blind spot.
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ease into the other lane slowly so the other car can get out of the way.
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None of the above.
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19.
Air storage tanks:
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pump air into the air storage tanks.
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are installed in the first tank the air compressor pumps air to.
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hold compressed air for the brakes.
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use parts of the service brake systems to stop the vehicle in a brake system failure.
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20.
When driving in hot weather, drivers should inspect tires:
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every 4 hours or every 200 miles.
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every hour or every 50 miles.
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every 2 hours or every 100 miles.
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every 3 hours or every 75 miles.
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