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COMBINATION PRACTICE TEST - WY CDL

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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Wyoming CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the Wyoming CDL Manual. Take this practice test now to prepare for the actual WY CDL combination test!
1. When the ______ closes, it stops any air from going out of the tractor.
height control valve
hand valve
alcohol evaporator
tractor protection valve
2. The two most important things that a driver can do to prevent a rollover when driving a combination vehicle are:
Keeping cargo near the center of the vehicle and driving slowly on turns
Keeping cargo near the ground and driving slowly on the highway
Keeping cargo near center of vehicle and driving slowly on the highway
Driving slowly around turns and keeping the cargo as close to the ground as possible
3. Empty trucks:
require a greater stopping distance than full trucks.
require the same stopping distance than full trucks.
require a shorter stopping distance than full trucks.
None of the above.
4. During a trip:
you should watch gauges for signs of trouble.
you should watch gauges to make sure that valve caps are not missing.
you should not watch gauges as they can be misleading.
None of the above.
5. Do NOT use the parking brakes:
to test that they work.
if the brakes are very hot.
when you leave your vehicle.
when you park for less than two hours.
6. Longer combination vehicles have the tendency to swing wide on turns. This is called:
off-tracking.
jackknifing.
hydroplaning.
rollover.
7. The only way to stop a front-wheel skid is to:
countersteer.
supply more power to the drive wheels.
let the vehicle slow down.
All of the above.
8. When inspecting the coupling, check that the safety latch is:
pushing against the kingpin.
in the "lock" position.
in position over the locking lever.
None of the above.
9. Anti-lock brakes:
help you stop faster.
reduce the perception distance.
keep your brakes from locking up when you brake hard.
increase your stopping distance.
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; 10 feet
3 seconds; 50 feet
1 second; 5 feet
2 seconds; 10 feet
 
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WY Combination 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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