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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Ohio 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 Ohio CDL Manual. Take this practice test now to prepare for the actual OH CDL combination test!
1. Longer combination vehicles have the tendency to swing wide on turns. This is called:
2. Your vehicle has hydraulic brakes. When you press the brake pedal while driving and the pedal goes to the floor, remember that:
pumping the brake pedal may generate enough hydraulic pressure to stop the vehicle.
the parking brake should never used to slow the vehicle.
shifting into neutral may help slow the vehicle.
3. As you approach off ramps and on ramps, remember:
to always brake and turn at the same time.
that the posted speed limit may not be safe for larger vehicles.
that downgrades make it easier to reduce speed.
4. A vehicle inspection should be done in the same order each time:
so you are less likely to forget something.
because it is required by law.
because the report must be written in that order.
5. If your truck catches fire, the first thing you should do is to:
pull into a service station and call for help.
pull off the road and park in an open area.
get the vehicle off the road and park near other vehicles.
6. If the fifth-wheel locking lever is not locked after the jaws close around the kingpin:
the parking brakes are on and your vehicle is safe to drive.
the coupling is not right and you should not drive until you get it fixed.
the parking brakes are on and the wheels are chocked.
7. If driving a new vehicle, you should familiarize yourself with the controls and equipment:
within the first 50 miles.
before you start driving.
as you drive.
8. To prevent a rollover, you should keep the cargo as close to the ground as possible and:
go slowly around turns.
keep an eye on your tires.
keep the vents clear so they work correctly.
9. Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
Repaving of the road
The weight of a cargo
10. ABS:
is an addition to your normal brakes.
allows you to brake harder.
should only be used on dry roads.
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CDL Combination Test (OH)

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