CDL GENERAL KNOWLEDGE TEST (ILLINOIS) - PRACTICE TEST

21. Your vehicle must be equipped with:
Spare electrical fuses
Fire extinguisher(s)
Warning devices for parked vehicles
All of the above.
22. What is an "escape ramp"?
A road shoulder made to support the weight of large vehicles and, therefore, offer an escape route.
A short section of road by which traffic may leave a controlled access highway.
A ramp built on steep mountain downgrades, made to stop runaway vehicles safely.
None of the above.
23. To avoid blinding other drivers, you should dim within ____ of an oncoming vehicle.
500 feet
100 feet
1000 feet
250 feet
24. Name 2 causes of tire fires.
Loose connections and poor ventilation.
Under-inflated tires and duals that touch.
Over-inflated tires and duals that touch.
Driver smoking and bleeding tar.
25. Under-loaded front axles:
can make the steering axle weight too light to steer safely.
can cause tire failure.
can improve traction.
All of the above.
26. The best way to recognize that your trailer has started to skid is:
by recognizing tire failure.
by feeling the brakes come on.
by opening the window and feeling the front of the mirror.
by seeing it in your mirrors.
27. How many glasses of wine can you drink without increasing the chances of a crash?
None.
It depends on your age.
One.
It depends on your weight.
28. Which of the following is NOT a type of retarder?
Engine
Hydraulic
Electric
Anti-lock
29. The distance you will continue to travel, in ideal conditions, before you physically hit the brakes in response to a hazard ahead is called:
Perception distance
Stopping distance
Reaction distance
Braking distance
30. To maintain alertness while driving, you should:
avoid medications that cause drowsiness.
avoid heavy foods.
have another person ride with you.
All of the above.
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