GENERAL KNOWLEDGE PRACTICE TEST – 04

This general knowledge practice 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 04

1 / 30

If you have ABS brakes, your braking should be...?

Lighter than normal

Heavier than normal

Any of these depending on conditions

The same as normal

2 / 30

In slippery conditions, you should aim to be...?

Any of these depending on your skill levels

Smooth and slow

Fast and smooth

Fast and aggressive

3 / 30

If you have no alternative but to drive through standing water, you should do so...?

Using light brake pressure

Using heavy brake pressure

Using medium brake pressure

Using no brakes

4 / 30

If your ABS system fails, you should...?

Get it serviced soon

Get it fixed at the next garage

Stop immediately

Ignore it

5 / 30

When going downhill, brakes will start to fade if...?

You don't use them enough

They become too hot

You don't keep them permanently semi-applied

You stay in low gear

6 / 30

If you are forced to leave the pavement completely, you should avoid using your brakes until your speed has dropped to around...?

10 mph

15 mph

30 mph

20 mph

7 / 30

Which of these is a sign that you have lost hydraulic brake pressure?

The brakes apply without you touching them

The pedal goes to the floor

The pedal sticks half way

The pedal won't move at all

8 / 30

Which of these has priority at a railroad crossing which has neither gates nor lights?

Private automobiles

Trains

Commercial vehicles

School buses

9 / 30

Which of these is not an essential at the scene of a crash?

Photographing the damage

Caring for the injured

Protecting the area

Notifying the authorities

10 / 30

When traveling at your 'safe' speed, you should be able to reduce your speed by 5 mph by applying the brakes for...?

Two seconds

One second

Four seconds

Three seconds

11 / 30

You should not move a severely injured person at a crash scene unless...?

Any of these apply

They request you to

They are holding up traffic

They are in immediate danger

12 / 30

ABS systems will be present on all commercial vehicles built after March 1...?

1999

2003

2001

1997

13 / 30

On older brake systems, the ABS lamp may stay on until you reach a speed in excess of...?

15 mph

5 mph

20 mph

10 mph

14 / 30

If you have been forced to leave the road and have to return to it before you can stop, you should...?

Edge back onto it

Any of these depending on circumstances

Turn sharply back onto it

Turn back onto it at a shallow angle

15 / 30

If you suspect a front tire failure, you should...?

Hold the steering wheel firmly

Stay off the brakes

Do all these things

Get out and check all the tires

16 / 30

Your 'safe' speed on a downgrade is...?

The maximum speed you can confidently use

The speed limit for that particular road

The minimum speed you wish to use

The average speed you are attempting to achieve

17 / 30

In very hot weather, you should inspect your tire pressures every...?

Four hours or 200 miles

Two hours or 100 miles

One hour or 50 miles

Three hours or 150 miles

18 / 30

A yellow cross on the pavement marked with the letters RR means...?

Reversing recommended

No reversing

Road rules apply

Railroad crossing

19 / 30

A typical tractor-trailer unit takes at least how long to clear a double track railroad crossing?

5 seconds

15 seconds

20 seconds

10 seconds

20 / 30

The vast majority of truck skids are caused by...?

Spilled oil

Snow and ice

Driver error

Standing water

21 / 30

The best thing to do if you lose your brake power on a downhill is to...?

Try to perform a controlled crash

Find an escape ramp or route

Deliberately skid your vehicle sideways

Try to coast to the bottom of the hill

22 / 30

ABS systems only operate when...?

You flick a special switch

The wheels are about to lock up

The wheels have already locked up

You press the brake pedal

23 / 30

Brakes are more likely to experience fade if...?

They are new

They are out of adjustment

They are operating in thin air conditions

They have gotten wet recently

24 / 30

When crossing a railroad track, you should never...?

Do any of these things

Slow down

Change gear

Accelerate

25 / 30

If you stop to help others at a crash in which you were not involved, you should park...?

As close in front of the crash as possible

Alongside the crash

Well away from the crash

As close behind the crash as possible

26 / 30

It is safe to remove the radiator cap for checks in hot conditions...?

If you can touch it with your bare hand

If there is no visible steam coming from it

Half an hour after stopping

As soon as you have stopped

27 / 30

If you are returning to the road after being forced off, as soon as the front tires are on the pavement, you should...?

Brake

Counter steer

Do none of these things

Accelerate

28 / 30

You're driving a rig on which only the trailer, not the tractor, has ABS. What should you do?

Brake harder than usual

Brake normally

Avoid heavy braking

Turn off ABS

29 / 30

If an oncoming driver has drifted to your lane, the best thing to do is...?

Hold whatever position you are in

Stay in the center of the lane

Move to the left

Move to the right

30 / 30

The best lights to use in foggy conditions are...?

Full beam headlights

Low beam headlights

Parking lights

No lights at all

Your score is