AR CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST

31. If you have convex mirrors, be aware that:
objects may appear to be faster than they really are.
in a convex mirror objects appears larger than they really are.
objects seem closer than they really are.
everything appears smaller in a convex mirror than it would if you were looking at it directly.
32. When driving in construction areas you should:
increase your speed.
decrease your speed.
reduce speed to a crawl.
stop driving as soon as you can safely do so.
33. When driving a modern truck, the gear you should be in before starting down a hill is usually_____ the gear required to climb the same hill.
higher than
the same as
lower than
None of the above.
34. When you are driving on a slippery road, you should NOT:
keep a longer following distance.
take curves at slower speeds.
adjust turning and braking to road conditions.
use the engine brake or speed retarder.
35. What should you do if your vehicle starts hydroplaning?
Accelerate slightly, then push in the clutch to slow down.
Release the accelerator and push in the clutch to let the wheels turn freely.
Leave the road completely.
Apply the brakes and countersteer to regain control of the vehicle.
36. Pre-trip inspections are:
required only for trips of more than 100 miles.
required only for trips of more than 50 miles.
recommended.
required by law
37. The air compressor is connected to:
the suspension system.
the engine.
the radiator.
the transmission.
38. The _______ applies and releases the brakes when you use the brake pedal during normal driving.
emergency brake system
service brake system
trailer brake system
parking brake system
39. Which of the following is not a way to know when to change gears?
Check that the pressure gauge shows normal oil pressure
Use engine speed (rpm)
Watch your tachometer
Use road speed (mph)
40. The best time to take a short break is:
when you feel you can't go any further without one.
before you feel you need it.
when you start to feel drowsy.
at regular intervals.
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