NJ CDL COMBINATION TEST - PRACTICE TEST
11.
If the ABS is not working:
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the vehicle will have weak brakes.
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you still have normal brake functions.
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the vehicle will have no brakes.
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None of the above.
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12.
When checking the air and electric lines to the trailer, be sure that the air lines are properly connected to the gland hands, and are:
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secured with enough slack for turns.
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properly greased.
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secured with enough air leaks for turns.
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None of the above.
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13.
A burning tire must be:
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cooled with water.
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covered with cloth.
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immediately removed from the vehicle.
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None of the above.
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14.
When your vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called:
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off-tracking.
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skidding.
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front-rear tracking.
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path-breaking.
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15.
When checking air brakes on combination vehicles, which of the following is NOT part of checking that air flows to all trailers?
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Using the trailer handbrake to provide air to the service line.
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Pulling tractor forward until the fifth-wheel comes out from under the trailer.
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Going to the rear of the rig.
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Opening the emergency line shut-off valve at the rear of the last trailer.
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16.
To reduce the chance of rollover, you should:
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distributed the cargo as low as possible inside the trailer.
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place the cargo as high as possible inside the trailer.
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put the lightest parts of the cargo under the heaviest parts.
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None of the above.
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17.
Cargo should be properly covered:
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to block your view or someone else’s.
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to protect people from spilled cargo.
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to protect the weather from the cargo.
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All of the above.
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18.
As you approach off ramps and on ramps, remember:
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that downgrades make it easier to reduce speed.
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to always brake and turn at the same time.
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that the posted speed limit may not be safe for larger vehicles.
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to maintain your highway speed.
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19.
By pushing the trailer air supply control knob in, you:
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shut the air off and put on the trailer emergency brakes.
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supply the tires with air.
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supply the trailer with air.
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keeps air in the tractor or truck brake system.
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20.
When approaching a vehicle with a distracted driver, you should:
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change lanes quickly.
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quickly pass the vehicle.
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maintain your safe following distance.
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sound your horn.
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