NJ CDL PRACTICE TEST - GENERAL KNOWLEDGE
41.
Which of the following does alcohol impair?
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Muscle coordination
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Reaction time
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Depth perception
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All of the above.
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42.
The 2 special conditions where you should downshift are:
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Before starting down a hill and before entering a curve.
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While going down hill and after finishing a curve.
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Before starting up a hill and after finishing a curve.
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Before starting up a hill and before finishing a curve.
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43.
Which of the following is NOT a reason for hydraulic brake failure?
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Loss of hydraulic pressure
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Stab braking
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Brake fade on long hills
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All of the above.
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44.
When driving, do NOT:
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assume that vehicles, pedestrians or bicyclists see you whenever you are about to pass them.
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put your turn signal on before changing lanes.
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try to help out other drivers by signaling when it is safe to pass.
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warn the drivers behind by flashing your brake lights if you see a hazard that will require slowing down.
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45.
The best way to know what's going on behind and to the sides of your vehicle is to:
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use the rear view camera.
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lean out of the window.
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ask your passenger(s).
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check your mirrors regularly.
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46.
On ramp/off ramp curves should be taken:
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slightly above the posted speeds.
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well below the posted speeds.
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at the posted speeds.
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slightly below the posted speeds.
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47.
When your drive wheels have poor traction, you should:
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turn the retarder on.
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only use the retarder on the rear wheels.
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turn the retarder off.
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only use the retarder on the front wheels.
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48.
The spring brakes come on:
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when air pressure in both air brake systems rises to a value set by the manufacturer.
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when you lose ABS control.
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when main air pressure is lost.
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when you bring the vehicle to a complete stop right away.
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49.
When taking a curve you should:
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be in a gear that will let you accelerate slightly in the curve.
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brake in the curve to avoid to locking the wheels.
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slightly exceed the posted speed limit for the curve, as this will help you keep control.
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maintain the same speed you were traveling at before entering the curve.
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50.
Which of the following is most likely to get stuck on raised railroad crossings?
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A single-axle tractor with no trailer
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A single-axle tractor pulling a small trailer
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A low slung unit
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An empty truck
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