CDL GENERAL KNOWLEDGE TEST – 03

This free CDL general knowledge test will examine your knowledge of general trucking, safe transportation of cargo, safe driving, and the correct way to perform a pre-trip vehicle inspection. In order to receive your CDL, it is required that you pass the state’s official CDL General Knowledge exam.

General Knowledges Test 03

1 / 30

On a wet road, you should reduce your speed by...?

One third

One half

One quarter

One eighth

2 / 30

Which of these factors can influence whether or not you are able to make the posted clearance on a bridge or underpass?

All of them

The size of your load

Packed snow

Resurfacing

3 / 30

Which of these is the only reliable way to get rid of fatigue?

Open your cab windows

Drink caffeinated beverages

Stop and sleep

Turn up your radio

4 / 30

When you are driving a 60 foot truck at speeds over 40 mph, you should allow following distance of...?

Seven seconds

Four seconds

Five seconds

Six seconds

5 / 30

At which of these points in a rainstorm will the road be most slippery?

Just after the rain starts

One hour after the rain starts

Just before the rain stops

20 minutes after the rain starts

6 / 30

The safest way to avoid becoming distracted by a cell phone is...?

Only have short conversations

Never use it

Only use it with a hands-free kit

Only use it in light traffic

7 / 30

Hydroplaning can occur at speeds as low as...?

30 mph

35 mph

45 mph

25 mph

8 / 30

Which of these activities can distract you from your driving?

Smoking

Using a navigation system

All of them

Adjusting your air-conditioning

9 / 30

If you have to swing out to make a right-hand turn, you should do so by taking up...?

Any of these depending on circumstances

The left-hand lane of the road you are leaving

The left-hand lane of the road you are turning into

The center of the intersection

10 / 30

You see a pedestrian about to cross the road looking straight to your vehicle. You should assume...?

They have seen you

They haven't seen you

They will find somewhere else to cross

They won't cross until you pass

11 / 30

When heading onto an off-ramp or on-ramp, you should cut your speed...?

Half way around the curved part

Before exiting the curved part

Before joining the next road

Before you reach the curved part

12 / 30

If another vehicle is tailgating you, what should you do to reduce the chances of the crash?

Accelerate away from them

Flash your brake lights

Increase your following distance

Slow down quickly

13 / 30

Which of these areas is likely to freeze first when the temperature is close to 32°F?

Tollbooth entrances

Open highways

Underpasses

Bridges

14 / 30

At speeds below 40 mph, you should allow a second of space ahead for every...?

20 feet of vehicle length

15 feet of vehicle length

10 feet of vehicle length

5 feet of vehicle and

15 / 30

The risk of crashes is doubled if a driver is distracted for just...?

Half a second

1 1/2 seconds

One second

Two seconds

16 / 30

A heavy vehicle will need the longest stopping distance when it is...?

Three quarters loaded

Empty

Fully loaded

Half loaded

17 / 30

If you triple your speed from 20 to 60 miles an hour, you increase your braking distance by...?

Five times

Seven times

Three times

Nine times

18 / 30

If someone is coming towards you at night with very bright lights on, you should look...?

Up at the roof of your vehicle

Down at the centerline

Down into your lap

Down at the right side of the road

19 / 30

At 80 mph, the force of your impact if you strike a person or vehicle will be how much greater than if you were traveling at 20 mph?

4 times

16 times

12 times

8 times

20 / 30

You are more likely to hit a roadside object such as a sign or tree limb if you drive...?

To the left of your lane

In the center of your lane

Near the edge of the pavement

In the center of the road

21 / 30

Looking out for hazards and planning what to do should they turn into emergencies is what is called driving...?

Aggressively

Defensively

Timidly

Passively

22 / 30

The principal way you should control your speed on downgrades is to...?

Use your emergency brakes

Use your normal brakes

Use engine braking

Weave from side to side

23 / 30

You should be especially wary of tourists, as they can be confused as to direction. A good clue to a tourist is...?

Rooftop luggage

Slow speed

Brightly colored cars

Aggressive driving

24 / 30

When coming up on another vehicle or approaching one coming in the opposite direction at night, you should dip your lights before they get within...?

300 feet

200 feet

700 feet

500 feet

25 / 30

In some states and areas, the speed limit for trucks and buses is up to how much lower than that for cars on the same road?

10 mph

15 mph

5 mph

20 mph

26 / 30

Which of these types of music is recommended to help you be a less aggressive driver?

Hard rock

Rap

Heavy metal

Easy listening

27 / 30

When faced with an aggressive driver, you should...?

Try to challenge them

Try to get out of their way

Try to block them

Try to speed away from them

28 / 30

When carrying a heavy load, you should be particularly wary of getting stuck on...?

Overpasses

Suburban roads

Pedestrian crossings

Railroad crossings

29 / 30

Tests have shown that trucks with a high center of gravity can roll over on curves when traveling...?

10 mph over the speed limit

At the speed limit

15 mph over the speed limit

20 mph over the speed limit

30 / 30

You must not drive at night at a speed which means you can't stop within the distance you can see in your headlights. With full beam headlights, that will be a maximum distance of...?

400 feet

700 feet

600 feet

500 feet

Your score is