GENERAL KNOWLEDGE -

GENERAL KNOWLEDGE TEST

GENERAL KNOWLEDGE

1 / 149

You are testing the stopping action of service brakes on a hydraulic system. Which of these can mean there is a problem?

The brake pedal goes to the floor

Stopping action is delayed.

The vehicle pulls to one side when the brake pedal is pressed.

All of the above.

2 / 149

The center of gravity of a load:

Is only a problem if the vehicle is overloaded.

Should be kept as high as possible.

Can make a vehicle more likely to tip over on curves.

All of the above.

3 / 149

Which of these statements about double clutching and shifting is true?

If you miss a gear while up-shifting, you must bring the vehicle to a stop.

Double clutching should only be used with a heavy load

You can use the tachometer to tell you when to shift.

Double clutching should not be used when the road is slippery.

4 / 149

The first step to take if your vehicle catches fire while driving is:

Head for the nearest service station.

Get the vehicle off the road and stop in an open area.

Park in the shade of a building.

Immediately open the door and jump out.

5 / 149

You are checking your tires for a pre trip inspection. Which of these statements is true?

Tires of mismatched sizes should not be used on the same vehicle.

Radial and bias-ply tires can be used together on the same vehicle.

Dual tires should be touching each other.

2/32 inch tread depth is safe for the front tires.

6 / 149

Dry bulk tanks require special care because:

The load can shift

They have a high center of gravity

Both of the above

None of the above

7 / 149

Is it legal to drive with one fourth of a vehicles leaf springs broken or missing?

It doesn't make any difference as long as you drive slow.

Yes

None of the above.

8 / 149

Which of these is a good rule to follow when using a fire extinguisher?

stay downwind of the fire.

Keep it as close to the fire as possible.

Aim at the base of the fire.

All the above.

9 / 149

The most important reason for being alert to hazards is so:

You will have time to plan your escape if the hazard becomes an emergency.

Accident reports will be accurate.

Law enforcement personnel can be called.

You can help impaired drivers.

10 / 149

Which of these statements about cold weather driving is true?

In snow storms, wiper blades should be adjusted so that they do not make direct contact with the windshield.

Exhaust system leaks are less dangerous in cold weather.

There is no need to worry about engine overheating when the weather is very cold.

Windshield washer antifreeze should be added to the washer reservoir.

11 / 149

On wet roads, you should reduce your speed:

By one-third

By one-half.

And get off the road as soon as possible.

None of the above

12 / 149

You are driving a 40 foot vehicle at 45 MPH. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe?

2 seconds

3 seconds

4 seconds

5 seconds

13 / 149

Which of these statements about marking a stopped vehicle is true?

The vehicle's tail lights should be kept on to warn other drivers.

If a hill or curve keeps drivers behind you from seeing the vehicle within 500 feet, the rear reflective triangle should be moved back down the road to give adequate warning.

You do not need to put out reflective triangles unless the vehicle will be stopped for 30 minutes or more.

All of the above are true.

14 / 149

Which of these statements about cargo loading is true?

State laws dictate legal weight limits.

Slight overloading of a vehicle can make its brakes work better.

If the shipper loads cargo, the driver is not responsible for overloading.

The legal maximum weight allowed by a state can be considered safe for all driving conditions.

15 / 149

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

6-9 seconds

9-12 seconds

12-15 seconds

18-21 seconds

16 / 149

You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can help keep your brakes working?

Applying hard pressure on both the brake pedal and accelerator after coming out of the water.

Gently pressing the brake pedal while driving through the water.

Turning on your brake heaters.

Driving through quickly.

17 / 149

You are driving on a two lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is generally the best action?

Steer to the right

Steer onto the left shoulder

Hard braking

Steer into the oncoming lane

18 / 149

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

If you must stop to take a nap, it should be at a truck stop or other public area never on the side of the road.

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

The only thing that can cure fatigue is sleep.

There are drugs that can overcome being tired.

19 / 149

Retarders:

Allow you to disconnect the steering axle brakes.

Cannot be used on interstate highways.

Work better at very low rpms.

Can cause the vehicle to skid when the road is slippery.

20 / 149

Which of these statements about using turn signals is true?

When turning, you should signal early.

You do not need to use your signal when changing lanes on a four lane highway.

You should use your turn signal to mark your vehicle when it is pulled off the side of the road.

When turning, you should cancel the signal just before you make the turn.

21 / 149

If you are stopped at a rest area and found to have a BAC (Blood Alcohol Concentration) of .02 you will:

Be In trouble with the dispatcher

Be placed out of service for 24 hours

Be placed out of service for 48 hours

Be placed out of service for 72 hours

22 / 149

When should the pre-trip inspection report from the last driver be reviewed?

During your pre-trip inspection

Doesn't have to be reviewed

Once per week

Once a month

23 / 149

A drivers trip log, if required:

May be brought up to date once a week.

May be written in pencil

Must be shown immediately when an officer requests it.

All of the above.

24 / 149

The parking brake should be tested while the vehicle is:

Moving slowly.

Moving at highway speed.

Going downhill.

Parked

25 / 149

If you are being tailgated, you should:

Signal the tailgater when it is safe to pass.

Speed up.

Flash your brake lights.

Increase the space in front of you.

26 / 149

State law can regulate...

the weight of your vehicle, but not the cargo

the weight of the cargo, but not your vehicle

both your vehicle and cargo weights

neither weights; the federal government regulates legal weights

27 / 149

Normal clutch travel is...

less than one inch

about one or two inches

more than two inches

it changes and can't be measured

28 / 149

Drive tire tread must be at least...

1/4 inch

2/32 inch

1/2 inch

4/32 inch

29 / 149

Blocking used to prevent cargo movement...

is secured to the cargo compartment floor

is secured to the cargo itself

is secured to the cargo and to the walls

must be placed every 3 feet

30 / 149

The legal size and weight distribution limits...

should be your guide

are not changed by adverse conditions

does not ensure safe operations in adverse conditions

are changed by the states depending upon the season

31 / 149

Progressive shifting means...

downshifting at lower rpm as you reach the lower gears

downshifting at higher rpm as you reach the lower gears

upshifting at lower rpm as you reach the higher gears

upshifting at higher rpm as you reach the highest gears

32 / 149

Normal oil pressure while idling is...

165 to 185 degrees Fahrenheit

30 to 75 psi

30 to 35 psi

5 to 15 psi

33 / 149

By law, you must have your vehicle's lights on...

one half hour after sunset until one half hour before sunrise

unless street lights are lit

only when there's not enough natural light to see clearly

none of the above

34 / 149

If your vehicle doesn't pass a roadside inspection...

it can be declared "out of service"

you cannot drive the vehicle, even to a repair station

you may repair it on the spot, then resume your trip

all of the above

35 / 149

If you're required to keep a log of your time...

you may bring it up to date once a week

any FHWA agent may inspect it

you may assign your co-driver to fill it out and sign it for you

you should add an hour when you cross a time zone

36 / 149

A front wheel skid is usually caused by...

Driving too fast for conditions

Lack of tread on the front tires

Cargo improperly loaded

All of the above

37 / 149

The best way to put out a fire is to...

Get as close as possible and spray the flames

Stand downwind and spray the flames

Stand upwind and spray the base of the fire

Stop spraying as soon as the flames disappear

38 / 149

An engine retarder (Jake Brake) is designed to...

Use engine power to slow down the vehicle

Apply braking power to the steering wheel

Work only with manual transmissions

Work when you accelerate

39 / 149

Hydroplaning can occur when you drive through water or slush. If you experience hydroplaning you should...

Lightly tap your brakes to slow down

Release the accelerator and push in the clutch

Steer hard to the right

Speed up to get through the water quickly

40 / 149

Which of the following are causes of vehicle fires...

Spilled fuel

Short circuits

Driver smoking

All of the above

41 / 149

When driving at highway speeds, you should look 12-15 seconds ahead which is...

At least 100 yards

At least half a mile

At least a quarter of a mile

At least one tractor trailer length

42 / 149

To correct a drive wheel acceleration skid you should...

Stop accelerating and push in the clutch

Downshift

Pump the brake

Accelerate quickly

43 / 149

When making a right hand turn you should always...

Steer into the left lane first so you can make the corner

Rush through the intersection so you can get out of the way of traffic

Back up to make the driver behind you move back

Keep the rear of your vehicle close to the curb

44 / 149

How should you hold your hands on the steering wheel?

Near the bottom of the wheel

Opposite sides of the wheel

Near the top of the wheel

One hand on the steering wheel and one on the shifter

45 / 149

If you find that you are being tailgated, you should...

Quickly change lanes to avoid an accident

Flash your brake lights to warn the tailgater

Decrease the distance between you and the tailgater

Increase the distance in front of you, if possible

46 / 149

When driving in heavy traffic you should travel...

At a speed consistent with the flow of traffic

Five mph less than automobiles regardless of posted limits

In the left lane when possible to avoid heavy lanes of traffic

In the right lane to avoid passing

47 / 149

Which of the following statements about your mirrors is true?

You cannot see your tires

You should be able to see any cars overtaking you

You should be able to see any vehicles behind your trailer

Some objects may appear smaller in your mirrors

48 / 149

Driving at night is more dangerous because of the following EXCEPT...

Most people are less alert at night due to fatigue

Headlights often cause glare which can blind drivers

Traffic lights are less visible than in the day

There are more drunk drivers at night

49 / 149

Water can be used to extinguish which of the following fires?

Tires

Electrical fire

Gasoline fire

Chemical fire

50 / 149

The following are all probable signs of a tire blowout EXCEPT...

A loud bang

Vibration of the vehicle

The smell of smoke

A thumping sound

51 / 149

You are driving in the right lane of a four lane, undivided road, you come over a hill and find a car stopped ahead in your lane. You do not have room to stop, and the hill blocks your view to the rear. Which of these is most likely the best action to take?

Steer to the right.

Use hard braking and brace for collision.

Steer into the left lane.

Steer into the oncoming lanes.

52 / 149

You must park on the side of a level, straight, two lane road. Where should you place the three reflective triangles?

One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 200 feet to the rear.

One within 10 feet of the front of the vehicle, one about 200 feet from the front, and one about 100 feet to the rear.

One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle.

One about 50 feet from the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle.

53 / 149

The road you are driving on becomes very slippery due to black ice. Which of these is a good thing to do in such a situation?

Apply the brakes often to keep the linings dry.

Down shift to stop.

Drive at a varying speed.

Stop driving and park where it is safe to do so.

54 / 149

While driving, ice builds up on your wipers and they no longer clean the windshield. You should:

Keep driving, and spray the windshield with washer fluid.

Keep driving, and reach out the window and knock the ice off.

Pull over in a safe place and remove the ice.

Keep driving, and turn your defroster on.

55 / 149

To correct a rear wheel (drive wheel) braking skid, you should:

Apply more braking pressure to the brake pedal

Release brakes and accelerate.

Apply more pressure to the brake pedal and steer/counter steer.

Release the brakes and steer/counter steer.

56 / 149

Which of these is the most important things to remember about emergency braking?

If the wheels are skidding you cannot control vehicle.

Disconnecting steering axle brakes will help keep your vehicle in a straight line during emergency braking.

Never do it without down shifting first.

It wears brake linings.

57 / 149

Which of these statements about managing space is true?

Smaller vehicles require more space to stop than larger ones.

When the road is slippery, you should keep much more space in front of your vehicle.

Many accidents are caused by drivers keeping too much space in front of their vehicles.

All of the above.

58 / 149

To avoid a crash, you had to drive onto the right shoulder. You are now driving at 40 MPH on the shoulder. How should you proceed?

Keep moving at the present speed and steer very gently back onto the pavement.

Steer sharply onto the pavement and counter steer when both back wheels of your vehicle are on the road.

Brake hard to slow the vehicle, then steer sharply onto the road.

Come to a complete stop, if possible, before continuing back onto the road.

59 / 149

Which of these statements about drugs is true?

A driver can use any prescription drug while driving

Amphetamines (pep pills or bennies) can be used to help the driver stay alert.

Use of drugs can lead to accidents and / or arrest.

All of the above.

60 / 149

Which of these statements about down shifting is true?

When you down shift for a curve, you should do so before you enter the curve.

When double clutching, you should let the RPM's decrease while the clutch is released and the shift lever is in neutral.

When you down shift for a hill, you should do so after you start down the hill.

All of the above are true.

61 / 149

Which of these statements about using mirrors is true?

There are blind spots that your mirrors cannot show you.

You should check your mirrors twice for a lane change.

You should look at a mirror for several seconds at a time.

Convex mirrors make things look closer than they really are.

62 / 149

The key principle in balancing cargo weight is to keep the load:

On the side away from most traffic

Balanced in the cargo area

To the front

To the rear

63 / 149

A vehicle is loaded with very little weight on the drive axle. What may result?

Damage to drive axle tires.

A need to disconnect the steering axle brakes.

Better handling.

Poor traction

64 / 149

Which of these is a good rule to follow when driving at night.

Keep your instrument lights bright.

Look directly at oncoming headlights only briefly.

Keep your speed slow enough that you can stop within the range of your headlights.

Wear sun glasses

65 / 149

How do you test hydraulic brakes for leaks?

Measure the free play in the pedal with a ruler.

With the vehicle stopped, pump the pedal three times, apply firm pressure for 5 seconds, then hold and see if the pedal moves.

Step on the brake pedal and the accelerator at the same time and see if the vehicle moves.

Move the vehicle slowly and see if it stops when the brake is applied.

66 / 149

Your brakes can get wet when you drive through a heavy rain. What can this cause when the brakes are applied?

Lack of braking power

Trailer jackknife

Wheel lockup

All of the above

67 / 149

Cargo inspections:

Should be performed after every break you take while driving.

Are only needed if hazardous materials are being hauled

Not the responsibility of the driver.

Should be performed every 6 hours or 300 miles.

68 / 149

The proper way to hold a steering wheel is at clock positions ____ and ____.

6 and 12

3 and 9

4:30 and 7:30

1:30 and 10:30

69 / 149

You should use your mirrors to check:

Traffic gaps before you merge.

The condition of the tires and cargo.

Where the rear of your vehicle is while you make turns.

All of the above.

70 / 149

You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. You should:

Take your foot off the accelerator and apply the brakes.

Press harder on the accelerator.

Take your foot off the accelerator.

Try a lower gear.

71 / 149

You are traveling down a long, steep hill. Your brakes get so hot that they fail. What should you do?

Pump the brake pedal.

Down shift.

Look for an escape ramp or escape route.

All of the above.

72 / 149

According to the driver's manual, why should you limit the use of your horn?

It wears down the battery.

It can startle other drivers.

The horn is not a good way to let others know you're there.

You should keep both hands tightly gripping the steering wheel.

73 / 149

Which one of these is not part of the check of the engine compartment done for a pre trip inspection?

Worn wiring insulation.

Engine oil level.

Condition of belts and hoses.

Valve clearance.

74 / 149

Which of these can help you stay alert while driving?

Taking short breaks before you are drowsy.

Keeping the cab warm.

Taking over-the-counter cold medicine.

Scheduling trips during hours that you are normally asleep.

75 / 149

Which of these statements about drinking alcohol is true?

Some people are not affected by drinking.

A few beers have the same effect on driving as a few shots of whiskey.

Coffee and fresh air can sober a person up.

All of the above are true.

76 / 149

Which of these is a sign of tire failure?

steering that feels heavy.

Vibration.

A loud bang.

All of the above.

77 / 149

Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time?

Stopping is always the safest action in a traffic emergency.

Open the door and jump out if you have time.

Heavy vehicles can almost always turn more quickly than they can stop.

Leaving the road is always more risky than hitting another vehicle.

78 / 149

Under-loaded front axles can cause the following:

Steering axle weight too light to steer safely

Poor traction

Damage to the steering axle and tires.

Both A & B

79 / 149

What should you do when your vehicle hydroplanes?

Release the accelerator.

Start stab braking.

Counter steer hard.

Accelerate slightly.

80 / 149

Which of these statements about brakes is true?

Brake drums cool very quickly when the vehicle is moving very fast.

Brakes have more stopping power when they get very hot.

The heavier a vehicle or the faster it is moving, the more heat the brakes have to absorb to stop it.

All of the above are true.

81 / 149

Stab braking:

Should never be used.

Involves locking the wheels.

Involves steady pressure on the brake pedal.

Should only be used on slick roads.

82 / 149

Where or when should you test the stopping action of your service brakes?

At a special brake testing center only.

When the vehicle is traveling downhill without a load.

When the vehicle is moving at about 5 MPH.

In a parking lot when the vehicle is not moving.

83 / 149

An en-route inspection should include checking:

Cargo doors and / or cargo securement.

Tire temperature.

Brake temperature.

All of the above.

84 / 149

High beams should be:

Dimmed when you are within 100 feet of another vehicle.

Used whenever it is safe and legal to do so.

Turned on when an oncoming driver does not dim his or her lights.

All of the above.

85 / 149

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

A lower gear that you would use to climb the hill.

The same gear you would use to climb the hill.

A higher gear that you would use to climb the hill.

None: newer trucks can coast down hills.

86 / 149

You do not have a hazardous materials endorsement on your commercial drivers license. When can you drive a vehicle hauling hazardous materials?

Never

Only when the shipment will not cross state lines.

Only when the vehicle does not require placards.

Only when a person who has the hazardous materials endorsement rides in the vehicle.

87 / 149

What is counter steering?

Using the steering axle brakes to prevent over steering.

Steering in the opposite direction from what other drivers expect you to do.

Turning the wheel in the opposite direction after steering to avoid a traffic emergency.

Turning the steering wheel counter clockwise.

88 / 149

Which of these pieces of emergency equipment should be carried at all times in your vehicle?

Fire extinguishers.

Warning devices for parked vehicles.

Spare electrical fuses (if the vehicle uses them).

All of the above.

89 / 149

While driving, you see a small (1 foot square) cardboard box ahead in your lane. You should:

Steer around it when it is safe to do so.

Hit it with your vehicle to knock it off the road.

Brake hard to avoid hitting it.

Stop and direct traffic around it.

90 / 149

When roads are slippery, you should:

Stop and test the traction while going up hills.

Drive alongside other drivers.

Decreases the distance that you look ahead of your vehicle.

Make turns as gently as possible.

91 / 149

The most common cause of serious vehicle skids is:

Driving too fast for road conditions.

Poorly designed roads.

Poorly adjusted brakes.

Over inflated tires.

92 / 149

When should you wear seat belts?

Only in states where it is required by law.

Any time you are in a moving vehicle.

Only when engaged in interstate commerce.

Only when traveling on a highway.

93 / 149

Which of these statements about backing a heavy vehicle is true?

Backing is always dangerous.

You should back and turn toward the driver's side whenever possible.

You should use a helper and communicate with hand signals whenever possible.

All of the above are true.

94 / 149

Which of these statements about certain types of cargo is true?

Oversize loads can be hauled without special permits during times when the roads are not busy.

When liquids are hauled, the tank should always be loaded totally full.

Unstable loads such as hanging meat or livestock require extra caution on curves.

Loads that consist of liquids in bulk do not present vehicle handling problems because they are usually very heavy.

95 / 149

For an average commercial vehicle, being driven at 55 MPH on dry pavement it will take about ____ to bring the vehicle to a stop.

The length of a vehicle.

Half the length of a football field.

Twice the length of the vehicle.

The length of a football field.

96 / 149

Which of these describes how you should use the brake pedal on a steep downhill grade?

Release the brake when you are 5 MPH below your safe speed, then let your speed come back up to your safe speed and repeat braking again, (bring you speed down 5 MPH below your safe speed)

With stronger pressure as the vehicle goes downhill.

Light steady pressure.

Light, pumping action.

97 / 149

Every time you park your vehicle and shut the engine off you should:

Leave it in gear (if it has a manual transmission).

Apply the parking brake.

Turn the steering wheel as far to the left as you can.

Do all the above.

98 / 149

You are driving a vehicle that could safely be driven at 55 MPH on an open road. But traffic is now heavy, moving at 35 MPH although the speed limit is 55. The safest speed for your vehicle in this situation is most likely:

55 MPH

45 MPH

35 MPH

25 MPH

99 / 149

Which of these can cause the vehicle to skid?

Not enough weight on the drive axles.

Over acceleration.

Turning too sharply.

All of the above.

100 / 149

Truck escape ramps:

Cannot be used by certain types of heavy vehicles.

Are designed to protect vehicles from damage.

Should not be used unless you have first tried all other ways to save your vehicle after brake failure.

All of the above.

101 / 149

Bridge laws...

control traffic on a bridge

determine the maximum legal axle weight

apply only to bridges in California

can lower the maximum axle weight limit

102 / 149

A vehicle marked at the rear with a red triangle having an orange center...

Is hauling hazardous materials

Is moving slowly

Is a farm vehicle

May stop at any time

103 / 149

If you try to downshift while coming down a mountain, you might...

damage the engine

wear out the clutch

get stuck in neutral

lose traction

104 / 149

When the roads are wet, icy, or snow covered...

use your retarder for braking as much as possible

turn the retarder off

use the retarders maximum setting for better traction

be ready to turn the retarder on if you start to skid

105 / 149

Rust around wheel nuts often means that...

the nuts are loose

the nuts are broken

it's been raining a lot lately

it's nothing to worry about

106 / 149

Your vehicles battery box must have...

at least two batteries

enough fluid to work properly

at least one loose wire for grounding

a secure cover

107 / 149

Normal engine temperature ranges from...

180 to 250 degrees Fahrenheit

100 to 250 degrees Fahrenheit

165 to 185 degrees Fahrenheit

Any of the above, as long as it's over 100 degrees Fahrenheit

108 / 149

Signaling other drivers when it's safe for them to pass is...

a great aid to highway safety

required

an unsafe practice

a common courtesy drivers should extend to each other

109 / 149

Maintain good visual alertness by...

fixing your eyes on the road in front of you

looking ahead as far as you can see

keeping a close eye on the road behind you

shifting your attention between the mirrors and the road ahead

110 / 149

You should downshift...

before starting down a steep hill

when the speedometer or tachometer indicates that it's necessary

before entering a sharp curve

all of the above

111 / 149

When making an emergency stop on the highway...

put on your four-way flashers and keep them on until you're back on the road

put on your four-way flashers and keep them on until your warning devices are in place

place a red flag from the rear of your vehicle

blow your horn to alert motorists

112 / 149

Concerning night driving, which statement is true?

Most people are more alert at night

Most heavy vehicle accidents occur between midnight and 6 a.m.

Most hazards are easier to see at night because of the extra lighting

If you become sleepy, drink enough coffee to keep you awake until you get to your destination

113 / 149

You're pulled over for weaving all over the lanes. If you refuse to take an alcohol sobriety test, you may be disqualified just as if you WERE driving under the influence(DUI). This is because...

higher standard of care law

reasonable cause law

implied consent law

none of the above

114 / 149

If you are convicted of a traffic violation in a state other than the one that issued your CDL...

you must notify your home state of the conviction

that state will notify your home state

it's nobody's business but your own

it doesn't go on your record

115 / 149

All drivers who need a CDL must take the ...

air brakes test

combination vehicles test

chauffeur's license test

general knowledge test

116 / 149

Overloading your trailer can result in the following EXCEPT...

It can slow you down on upgrades

It can increase stopping distances

It can help you go through snow better

It can increase speed on downgrades

117 / 149

Upon conviction of a traffic violation you should notify your employer within 30 days if...

The violation occurred in your personal vehicle

The violation occurred in a commercial vehicle

The violation was for parking in a restricted area

both A & B

118 / 149

If you are asked to haul a placarded load and you do not have HAZMAT endorsements you should

Obtain written approval from your dispatcher

Obtain written approval from the DOT official

Refuse to take the load

Take the placards off the vehicle

119 / 149

If you do not have a HAZMAT endorsement on your CDL, under what conditions may you legally haul hazardous materials?

If your dispatcher feels it is an emergency situation

If the load does not require placards

When you will remain within your state

When a DOT official approves the load

120 / 149

Which of the following statements about alcohol is true...

If you eat before you drink you won't get as drunk

Drinking coffee will help you stay sober

Fresh air will help you sober up

A few beers are the same as a few shots of whiskey or glasses of wine

121 / 149

When backing up the tractor trailer, try to AVOID...

Backing toward the right (passenger) side

Backing toward the left (driver's) side

Pulling ahead to reposition your trailer

Having someone help/guide you

122 / 149

What is the best thing to do if you are tired?

Drink plenty of coffee to stay awake

Take pills to keep you alert

Plan your trips for the middle of the night to avoid traffic

Get enough sleep

123 / 149

The best way to warn the drivers behind you that you are slowing down is to...

Blow your horn

Turn on your emergency flashers

Tap your brakes

Flash your bright lights

124 / 149

When making a left hand turn you should always...

Wait until you reach the center of the intersection before you turn

Start in the left hand lane if there are two turning lanes

Pull into the intersection in case the light turns before you are through

Wait for a small gap in traffic and accelerate

125 / 149

Which one of the following is true about shifting gears?

Remain in neutral as long as possible

Allow the engine tachometer to rev into the highest range possible

Ignore how the engine sounds

Shift at the best RPM range for your vehicle

126 / 149

How much space should you maintain in front of you at highway speeds?

Seven seconds for a 60 foot vehicle

Five seconds for a 60 foot vehicle

Ten seconds for a 60 foot vehicle

Three seconds for a 60 foot vehicle

127 / 149

Which is NOT part of the pre-trip inspection...

Check engine oil level

Check horn(s)

Check air seat adjustments

Check seat belt fastener

128 / 149

The best time to test your parking brake is...

When the vehicle is parked

When the vehicle is going down a hill

When the vehicle is moving slowly

When the vehicle is traveling on the highway

129 / 149

When going down a hill you should always...

Use higher gears when you have a heavy load

Allow the brakes to heat up for better stopping power

Be in the right gear before starting down the hill

Put heavy pressure on the brakes to allow the drums to cool

130 / 149

The following statements about an engine overheating are TRUE EXCEPT...

Antifreeze is only used in colder temperatures

If you can touch the radiator cap with your bare hand, it is probably cool enough to open.

It is not possible to safely drive without radiator fluid

Never leave the engine running if it is overheating

131 / 149

In the event of a tire failure you should...

Stay off the brake and hold the steering wheel firmly

Pump the brakes until you come to a stop

Accelerate quickly until you find a place to pull over

Disengage the clutch so you are in neutral gear

132 / 149

Safe drivers maintain space around their vehicles for the following reasons except...

In case you must stop suddenly

In case there are cars following too closely

In case there is an obstacle in the road

In case you need to test your brakes

133 / 149

When using turn signals, which of the following should be avoided?

Signal just before you start to make a turn

Signal when you want to change lanes

Signal before you exit

Signal when you are merging into traffic

134 / 149

Which of the following is NOT true when driving through a curve?

You should slow down before the curve

You should brake during the curve

The higher your truck's center of gravity is, the easier it is to roll over

You should be in a gear that allows you to accelerate during the curve

135 / 149

When is the road likely to be more slippery?

After a hard rain

After it has been raining lightly for 30 minutes

When it has just begun to rain

After the rain has ended

136 / 149

What is the reason the exhaust system should be checked?

A leaking exhaust system can allow poisonous fumes into the cab

A leaking exhaust system can promote poor fuel mileage

A leaking exhaust system can be caused by snow and rain

A leaking exhaust system can hamper your visibility

137 / 149

Which of the following statements about stopping distances is NOT true?

Empty trucks require greater stopping distances because they have less traction

Trucks traveling on ice or snow require greater stopping distances

Brakes, tires, springs and shocks are designed to work best when the truck is empty

Trucks traveling at higher speeds require greater stopping distances

138 / 149

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

Within ten feet of the front or rear corners

About 100 feet behind your vehicle

About 100 feet in front of your vehicle

On the other side of a divided highway

139 / 149

To correct a drive-wheel braking skid you should...

Pump the brake

Steer in the opposite direction

Release the brake and steer/counter-steer

Accelerate quickly!

140 / 149

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

Pump the brake pedal

Downshift

Put the gears in neutral

Look for an escape ramp or an escape route

141 / 149

When accelerating...

Always use the parking brake to slow down

Do not engage the clutch before you take your foot off the brake

Speed up smoothly and gradually and avoid jerking

"Hammer down" when your wheels start to spin

142 / 149

In the event of an accident you should remember to do the following EXCEPT...

Move the victims out of the way immediately

Protect the area

Notify authorities

Stop any bleeding and keep the victims warm

143 / 149

Which of the following statements about overhead space is true?

The heights posted at bridges are usually accurate

The weight of the cargo changes a truck's height

Warning lights are always installed on low bridges and overpasses

An empty van is lower than a loaded one

144 / 149

Tires should should be replaced...

When the tread separates

When there are broken valve stems

If the tread depth on your front tires is less than 4/32 deep

All of the above

145 / 149

Which of the following statements about downshifting is NOT true?

Downshift before starting down a hill

Downshift before entering a curve

Downshift when you get to the bottom of a hill

Downshift before climbing a hill

146 / 149

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is...

About the length of a football field or 100 yards

About 1/4 mile

About two truck lengths

About two car lengths

147 / 149

Suspension systems...

Keep the load secure

Keep the axles in place

Keep the brake drums from failing

Keep the steering wheel tight

148 / 149

A commercial motor vehicle (CMV) is defined as...

A vehicle with a gross weight over 26,001 lbs.

A vehicle transporting hazardous materials

A vehicle transporting 16 or more passengers

All of the above

149 / 149

How often should you check your cargo?

Within the first 50 miles after beginning a trip

Every 150 miles or every three hours

After every break you take during driving

All of the above

Your score is

Each state requires that those seeking to obtain a CDL license must first pass a test of generalized trucking knowledge, it is required you ass the general knowledge test before proceeding to gain additional CDL endorsements. The CDL general knowledge test is a written test designed to assess your competence and level of trucking knowledge and covers the material presented any CDL handbook. The test covers all aspects of general trucking knowledge required to attain your CDL license including, driving safely, transporting cargo safely, and performing pre-trip vehicle inspections, air brakes, and passenger and combination vehicles. The material covered on the CDL general knowledge test is practically the same in every state to ensure that each CDL licensed driver is completely aware of the laws and requirements regardless of the license issuing state. Each driver wishing to successfully earn their CDL license must achieve an 80% passing score on the general knowledge test.

GENERAL KNOWLEDGE TEST

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Contribute to your future - start studying now.