General Knowledge: Comprehensive Review

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Build confidence with 10 original questions about General Knowledge: Comprehensive Review. Review your answers and explanations after finishing.

Supplemental study practice. This is not a government licensing exam or ELDT certification, and does not replace hands-on training. Follow your state’s current handbook.

1 / 10

Which of the following is a physical distraction while driving?

Worrying about your schedule

Thinking about something that happened earlier

Feeling tired

Reaching for an object inside the cab

2 / 10

What is the main benefit of Antilock Braking Systems (ABS) on commercial vehicles?

They always shorten stopping distance

They help keep the vehicle under control during hard braking

They work only on dry roads

They increase normal braking power

3 / 10

What should you do if your headlights are dirty or out of adjustment at night?

Make sure they are cleaned and properly adjusted before driving

Drive slower to compensate

Only use high beams

Rely on streetlights instead

4 / 10

How far ahead should you look while driving at highway speeds?

About 12 to 15 seconds ahead, or a quarter mile

At least one mile ahead

About 5 seconds ahead

Only as far as the vehicle in front of you

5 / 10

Which of the following statements about alcohol and driving is true?

Black coffee can quickly sober you up

Only time can reduce the effects of alcohol in your body

Eating a large meal will eliminate alcohol from your system

A cold shower will help you drive safely after drinking

6 / 10

If you experience a tire failure while driving, what should you do first?

Hold the steering wheel firmly and stay off the brake

Turn on your hazard lights and stop in the lane

Accelerate to regain control

Apply the brakes immediately

7 / 10

What is the safest way to use your brakes on a long, steep downgrade?

Shift to neutral and coast

Use a low gear and apply brakes only as needed to keep speed in check

Apply the brakes hard and continuously

Pump the brakes rapidly

8 / 10

When approaching a railroad crossing with multiple tracks, what is the safest procedure before crossing?

Look both ways and make sure no other trains are coming after one has passed.

Rely on warning signals and gates only.

Stop on the tracks if traffic is heavy.

Shift gears while crossing to maintain speed.

9 / 10

When should you check your mirrors more often than usual while driving a commercial vehicle?

When driving in clear weather with no traffic

When changing lanes, turning, or merging

When parked at a rest stop

When driving on a straight, empty road

10 / 10

Which of the following is a sign of black ice on the road?

There are no reflections on the road

The road appears dry

The road looks wet when temperatures are below freezing

You see snow piled on the shoulder

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