CDL 1-12

Which of these statements about staying alert to drive is true?

• A. A half-hour break for coffee will do more to keep you alert than half-hour nap

• B. If you must stop to take a nap, it should be truck stop or other rest area and never on the side of the road

• C. Sleep is the only thing that can overcome fatigue

You are driving a new truck with a manual transmission. What gear will you probably have to use to take a long, steep downhill grade?

• A. The same gear you would use to climb the hill

• B. A lower gear you would use to climb the hill

• C. A higher gear you would use to climb the hill

To avoid a crash, you had to drive into the right shoulder. You are now driving at 40 mph on the shoulder. How should you move back to the pavement?

• A. If the shoulder is clear, stay on the right until your vehicle has stopped then move back into the pavement when it is safe

• B. Brake hard to slow the vehicle then steer sharply onto the pavement

• C. Steer sharply onto the pavement, then brake hard as you counter steer

How far should a driver look ahead of the vehicle while driving?

• A. 5-8 seconds

• B. 12-15 seconds

• C. 18-21 seconds

Your vehicle's speed will increase on downgrades because of:

• A. Compound brakes

• B. Wind resistance

• C. Gravity

Which of these is good thing to do when steering to avoid a crash?

• A. Apply the brakes while turning

• B. Steer with one hand so that you can turn the wheel more quickly

• C. Don't turn any more than needed to clear what is in your way

Controlled braking:

• A. Can be used when you are turning sharply

• B. Involves locking the wheels for short period of time

• C. Is used to keep a vehicle in a straight line when braking

You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true?

• A. Rust around wheel nuts may mean that they are loose

• B. A vehicle can be safely driven with one missing lug nut on a wheel

• C. Mismatched lock rings can be used on the same vehicle

You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a tire blew out on your vehicles. What should you do first?

• A. Stay off the brake until the vehicle has slowed down

• B. Begin light braking

• C. Begin emergency braking

If you need to leave the road in the traffic emergency, you should:

• A. Try to get all wheels off the pavement

• B. Avoid braking until your speed has dropped to about 20 mph

• C. Avoid a shoulder because most shoulders will not support a large vehicle