INDIANA CDL DOUBLES TRIPLES PRACTICE TEST
11.
To prevent rollover, you should:
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place the cargo near the front of the trailer.
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place the cargo near the rear of the trailer.
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keep the cargo as close to the ground as possible.
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put the lightest parts of the cargo under the heaviest parts.
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12.
When driving in extremely hot weather, if the air pressure in the tires is too high, you should:
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let air out of the tires to decrease pressure.
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stop and remain stopped until the tires cool off.
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call your supervisor.
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continue driving.
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13.
If you hear a loud loud "bang" and the steering feels "heavy", you should:
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pump the brakes until the vehicle has slowed down.
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check your rearview mirrors to see if you have a flat tire.
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brake hard and pull off the road.
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hold the steering wheel firmly and stay off the brake.
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14.
Your vehicle has air brakes. To stop, you should:
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pull the parking brake control knob out.
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push the brake pedal down.
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pump the brake pedal 3 times.
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release the accelerator, push in the clutch, and shift to Neutral at the same time.
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15.
When coupling twin trailers, the more heavily loaded semitrailer should:
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have its brakes locked.
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be in the rear.
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be in first position behind the tractor.
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have chocked wheels.
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16.
How should you apply the brakes when going down a steep downgrade?
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Apply the brakes when you reach the bottom of the downgrade.
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Apply the brakes as hard as you can without locking the wheels.
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You should not brake, and only use engine braking to prevent brake failure.
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Apply the brakes whenever you reach your safe speed, until your speed has been reduced to 5 mph below your safe speed.
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17.
When coupling double trailers, if the second trailer does not have spring brakes, to set the trailer emergency brakes you should:
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1. Drive the tractor close to the trailer 2. Connect the emergency line 3. Charge the trailer air tank 4. Disconnect the emergency line.
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1. Connect the emergency line 2. Drive the tractor close to the trailer 3. Disconnect the emergency line 4. Charge the trailer air tank.
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1. Connect the emergency line 2. Charge the trailer air tank. 3. Drive the tractor close to the trailer 4. Disconnect the emergency line.
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1. Disconnect the emergency line 2. Drive the tractor close to the trailer 3. Charge the trailer air tank 4. Connect the emergency line.
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18.
Air tanks usually hold enough compressed air to allow the brakes to be used _________ even if the compressor stops working.
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for 3 days
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for one stop
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for one day
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several times
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19.
When checking the lights before driving:
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you should check them from inside the vehicle.
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make sure the parking brake is not set.
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the engine must be running.
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you should turn off the engine.
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20.
Fully loaded rigs:
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are just as likely to roll over as empty rigs.
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are less likely to roll over than empty rigs.
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are much more likely to roll over than empty rigs.
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None of the above.
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