OR CDL COMBINATION PRACTICE TEST

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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Oregon 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 Oregon CDL Manual. Take this practice test now to prepare for the actual OR CDL combination test!
1. When going down grades, you should:
rely solely on engine braking to reduce your speed.
put the transmission in Neutral.
downshift to a lower gear.
shift up.
2. The only way to stop a front-wheel skid is to:
let the vehicle slow down.
countersteer.
supply more power to the drive wheels.
All of the above.
3. A vehicle inspection should be done in the same order each time:
because it is required by law.
because the report must be written in that order.
so you are less likely to forget something.
because it's much quicker.
4. When you have to back, you should always try to back toward the driver's side. Why?
You can watch the front of your vehicle by looking out the side window.
Backing toward the left side is more dangerous.
You can see better and watch the rear of your vehicle by looking out the side window.
All of the above.
5. You are inspecting your vehicle during a trip. What should you do?
Use your senses to check for problems.
Watch gauges for signs of trouble.
Check critical items such as tires, brakes, and lights.
All of the above.
6. A high center of gravity means:
a rollover is less likely.
you'll have better traction.
the spring brakes will come fully on.
you are more likely to tip over.
7. To prevent rollover, you should:
go slowly around turns.
drive slowly around on ramps and off ramps.
keep the cargo as close to the ground as possible.
All of the above.
8. The wheels of a large combination vehicle are more likely to lock up when:
the vehicle is heavily loaded.
you are traveling in very hot weather.
the trailer has new tires.
the vehicle is lightly loaded.
9. If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.
10, 100 and 200 feet
5, 50 and 500 feet
3, 15 and 45 feet
5, 25 and 50 feet
10. When driving trucks with trailers, drivers should:
avoid making sudden movements with the steering wheel.
decrease their following distance.
push the brake pedal to the floor when braking.
make quick lane changes.
 
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OR CDL Combination Test

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