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KANSAS CDL DOUBLES TRIPLES PRACTICE TEST

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Safely pulling double and triple trailers requires knowledge and skill. If you want to pull double or triple trailers, you must add the Doubles/Triples (T) endorsement to your Class A CDL. The Kansas doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The KS CDL doubles triples test covers the following sections of the Kansas CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this KS CDL practice test now to prepare for the actual test! Important: Triple trailers are not legal in Kansas.
1. The average driver has a reaction time of:
1/32 of a second.
3/4 second to 1 second.
1/16 of a second.
1/8 of a second.
2. The service line is also called:
power line.
cable line.
brake line.
control line.
3. To know how much space you should keep in front of you:
estimate how many seconds it would take you to reach the vehicle ahead.
estimate how many vehicle lengths there are between you and the vehicle ahead.
wait until the vehicle ahead of you passes a clear landmark, then count off the seconds until you reach the same spot.
None of the above.
4. When a combination vehicle goes around a corner:
the front and rear wheels follow a different path.
the driver must keep the rear of your vehicle far away from the curb.
the rear wheels of the trailer will never off-track.
All of the above.
5. When should you be particularly careful about high winds?
When driving in winter
When emerging from a tunnel
When going downhill
When driving at night
6. When the wheels of a trailer lock up, which of the following is most likely to occur?
The trailer will the trailer has overturn.
The trailer will tend to swing around (trailer jackknife).
The trailer will tend to push the towing vehicle sideways (tractor jackknife).
The rig will stay in a straight line but slide sideways.
7. If your brakes fail on a steep mountain downgrade, you should:
set the parking brake and park in an open area.
stay on the road and keep looking for the next available escape ramp.
decide what to do as soon as you know your brakes do not work.
slow down until your vehicle comes to a complete stop.
8. Under a pressurized system, the radiator cap:
should always be cool.
should be removed when the coolant is hot.
should never be hot.
should never be removed until the system has cooled.
9. If you're feeling tired while driving you should:
drink coffee.
eat something.
stop driving and get some rest.
increase your speed to get to your destination quicker.
10. To know how much space you should keep in front of you when driving at speeds below 40 mph, one good rule says you need at least ______ for each ______ of vehicle length.
1 second; 5 feet
1 second; 10 feet
2 seconds; 10 feet
3 seconds; 50 feet
 
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Doubles Triples KS CDL Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
Number of questions: 20
Correct answers to pass:16
Passing score:80%
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