CONNECTICUT CDL DOUBLES TRIPLES PRACTICE TEST
11.
You should flash your brake lights to warn drivers behind you when:
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you see a bus stops in the roadway ahead to unload passengers.
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you see a hazard that will require slowing down.
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you see you'll need to slow down.
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All of the above.
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12.
Which of the following is a common cause of truck fires?
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loose fuel connections.
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Under-inflated tires and duals that touch.
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Short circuits due to loose connections.
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All of the above.
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13.
Which of the following statements about retarders is NOT correct?
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Retarders help you avoid skids.
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Retarders help slow a vehicle, reducing the need for using brakes.
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You should turn the retarder off whenever the road is wet, icy, or snow covered.
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Retarders reduce reduce brake wear.
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14.
When coupling twin trailers, the more heavily loaded semitrailer should:
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be in the rear.
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be in first position behind the tractor.
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have its brakes locked.
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have chocked wheels.
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15.
An ABS system:
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decreases your stopping distance.
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requires a change in the way you brake.
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is a safety anti-skid braking system.
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helps increase a vehicle's stopping power.
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16.
Which of the following is NOT correct? Anti-lock brakes:
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help drivers avoid wheel lock up.
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require drivers to apply the brakes as hard as they can without locking the wheels.
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help drivers avoid skids caused by over braking.
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give drivers more control over the vehicle during braking.
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17.
Combination vehicles usually require _________ single commercial vehicles.
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the same level of skill as
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less driving skill than
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more driving skill than
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None of the above.
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18.
Which of the following is not a braking system on a truck?
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Steering brake
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Parking brake
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Emergency brake
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Service brake
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19.
Blocking and bracing are:
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coupling devices used to connect the service air lines from the truck or tractor to the trailer.
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used to keep cargo from sliding and to prevent movement of cargo.
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driving techniques used to regain control when your drive wheels start to skid.
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None of the above.
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20.
The parking brake:
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should be used when you need to apply the brakes firmly.
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should be used when driving in bad weather.
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should be used whenever you park.
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All of the above.
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