What are the three basic steps at any accident?

Protect the area, notify authorities, care for the injured

Move the vehicles, call your employer, take photos

Exchange papers, sweep the road, leave the scene

What is the first thing to do at an accident scene?

Keep another accident from happening in the same spot

Move all injured people off the road

If your vehicle is involved in an accident, where should you try to move it?

Exactly where it stopped, without moving

If you stop to help at an accident, where should you park?

Right next to the wrecked vehicles

In the lane before the accident to block it

What should you set out to warn other traffic at an accident?

Burning road flares next to spilled fuel

Your cargo straps across the lane

If you have a cell phone or CB at an accident, when should you call for help?

Before you get out of your vehicle

After you have cared for the injured

Without a phone, when should you send someone to call the police after an accident?

After the scene has been properly protected

Before putting out warning devices

A qualified person is already helping the injured at an accident. What should you do?

Stay out of the way unless asked to help

When may you move a severely injured person?

Only when fire or passing traffic makes it necessary

Whenever the person asks to be moved

Always, to get them off the road

How should you stop heavy bleeding?

Apply direct pressure to the wound

Raise the person to a sitting position

What else should you do for an injured person?

Give the person something to drink

Walk the person around to keep him alert

What tire conditions can cause vehicle fires?

Under-inflated tires and duals that touch

New tires and tires with deep tread

What electrical problems can cause vehicle fires?

Short circuits from damaged insulation and loose connections

Which fuel-related actions can cause fires?

Driver smoking, improper fueling, loose fuel connections

Filling the tank only half full

Which cargo conditions can cause fires?

Flammable cargo, poorly sealed or loaded cargo, poor ventilation

During a trip, what should you check for signs of heat whenever you stop?

The tires, wheels and truck body

What should you check about the fire extinguisher during the vehicle inspection?

That it is stored in the cargo area

How should you use the mirrors to help prevent fires?

Look for signs of smoke from tires or the vehicle

Check that the cargo doors are closed

When should you study the instructions on your fire extinguisher?

Only after a fire has been put out

Your vehicle catches fire. Where should you park?

In an open area, away from buildings, trees and other vehicles

Should you pull into a service station if your vehicle is on fire?

Yes, they have fire extinguishers

What should you do with an engine fire?

Turn off the engine as soon as you can and avoid opening the hood

Open the hood wide to reach the fire

Keep the engine running to cool it

For a cargo fire in a van or box trailer, what should you do with the doors?

Open them only if the cargo is hazardous

When using a fire extinguisher, how close should you get to the fire?

Within arm's reach of the flames

Where should you aim a fire extinguisher?

At the source or base of the fire

Which kinds of fire is a B:C fire extinguisher designed for?

Electrical fires and burning liquids

What must be done to a burning tire?

It must be cooled, and lots of water may be needed

It must be let down to zero pressure

It must be covered with a blanket

You are not sure which extinguisher to use on a hazardous materials fire. What should you do?

Use whatever extinguisher you have

Where should you stand when using a fire extinguisher outdoors?

Upwind, so the wind carries the extinguisher to the fire

Downwind, so the smoke blows away from the fire

When can you stop fighting a fire?

When whatever was burning has been cooled

How is a Class A fire of wood or paper put out?

By cooling and quenching with water or dry chemicals

How are fires in combustible metals put out?

With specialized extinguishing powders

Which abilities does alcohol impair?

Muscle coordination, reaction time, depth perception and night vision

How much alcohol can the liver process per hour?

One full standard drink and a half

What commonly measures the amount of alcohol in your body?

Blood Alcohol Concentration (BAC)

Which of these contains the same amount of alcohol as a 12-ounce glass of 5% beer?

A 5-ounce shot of 80 proof liquor

What part of the brain does alcohol affect first?

The part that controls judgment and self-control

What determines your Blood Alcohol Concentration?

How much you drink, how fast you drink, and your weight

Does it matter whether the alcohol comes from beer, wine or hard liquor?

No, it is the alcohol that affects performance

Accidents, fires, alcohol and hazmat rules

Practice this topic75 questions

Questions and answers

What are the three basic steps at any accident?

Protect the area, notify authorities, care for the injured

At an accident where you are not seriously hurt, protect the area, notify authorities and care for the injured.
Section 2 · 2.20 – Accident Procedures ↗PDF, 41 MB
What is the first thing to do at an accident scene?

Keep another accident from happening in the same spot

Protecting the area comes first, so the scene does not cause a second crash.
Section 2 · 2.20.1 – Protect the Area ↗PDF, 41 MB
If your vehicle is involved in an accident, where should you try to move it?

To the side of the road

Getting your vehicle to the side helps prevent another accident and lets traffic move.
Section 2 · 2.20.1 – Protect the Area ↗PDF, 41 MB
If you stop to help at an accident, where should you park?

Away from the accident

The area right around the accident is needed for emergency vehicles.
Section 2 · 2.20.1 – Protect the Area ↗PDF, 41 MB
What should you set out to warn other traffic at an accident?

Reflective triangles

Set out reflective triangles where other drivers can see them in time.
Section 2 · 2.20.1 – Protect the Area ↗PDF, 41 MB
If you have a cell phone or CB at an accident, when should you call for help?

Before you get out of your vehicle

With a phone or CB, call for assistance before leaving the vehicle.
Section 2 · 2.20.2 – Notify Authorities ↗PDF, 41 MB
Without a phone, when should you send someone to call the police after an accident?

After the scene has been properly protected

Protect the scene first, then phone or send someone to phone the police.
Section 2 · 2.20.2 – Notify Authorities ↗PDF, 41 MB
A qualified person is already helping the injured at an accident. What should you do?

Stay out of the way unless asked to help

Let the qualified person work and help only if asked.
Section 2 · 2.20.3 – Care for the Injured ↗PDF, 41 MB
When may you move a severely injured person?

Only when fire or passing traffic makes it necessary

Do not move a badly injured person unless fire or traffic danger requires it.
Section 2 · 2.20.3 – Care for the Injured ↗PDF, 41 MB
How should you stop heavy bleeding?

Apply direct pressure to the wound

Direct pressure on the wound stops heavy bleeding.
Section 2 · 2.20.3 – Care for the Injured ↗PDF, 41 MB
What else should you do for an injured person?

Keep the person warm

Keeping the injured person warm is one of the simple steps of first aid.
Section 2 · 2.20.3 – Care for the Injured ↗PDF, 41 MB
Which is a cause of fire after an accident?

Improper use of flares

Spilled fuel and improper use of flares can start fires after accidents.
Section 2 · 2.21.1 – Causes of Fire ↗PDF, 41 MB
What tire conditions can cause vehicle fires?

Under-inflated tires and duals that touch

Low tire pressure and dual tires rubbing together can cause fires.
Section 2 · 2.21.1 – Causes of Fire ↗PDF, 41 MB
What electrical problems can cause vehicle fires?

Short circuits from damaged insulation and loose connections

Damaged insulation and loose connections can cause short circuits and fire.
Section 2 · 2.21.1 – Causes of Fire ↗PDF, 41 MB
Which fuel-related actions can cause fires?

Driver smoking, improper fueling, loose fuel connections

Smoking, improper fueling and loose fuel connections are fire causes.
Section 2 · 2.21.1 – Causes of Fire ↗PDF, 41 MB
Which cargo conditions can cause fires?

Flammable cargo, poorly sealed or loaded cargo, poor ventilation

Flammable or improperly sealed or loaded cargo and poor ventilation can lead to fire.
Section 2 · 2.21.1 – Causes of Fire ↗PDF, 41 MB
During a trip, what should you check for signs of heat whenever you stop?

The tires, wheels and truck body

An en route inspection includes checking tires, wheels and body for heat at every stop.
Section 2 · 2.21.2 – Fire Prevention ↗PDF, 41 MB
What should you check about the fire extinguisher during the vehicle inspection?

That it is charged

Part of fire prevention is making sure the extinguisher is charged.
Section 2 · 2.21.2 – Fire Prevention ↗PDF, 41 MB
How should you use the mirrors to help prevent fires?

Look for signs of smoke from tires or the vehicle

Monitoring includes checking gauges for overheating and mirrors for smoke.
Section 2 · 2.21.2 – Fire Prevention ↗PDF, 41 MB
When should you study the instructions on your fire extinguisher?

Before you need it

Drivers who did not know what to do have made fires worse.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
Your vehicle catches fire. Where should you park?

In an open area, away from buildings, trees and other vehicles

Get off the road in an open area away from anything that might catch fire, and do not pull into a service station.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
Should you pull into a service station if your vehicle is on fire?

No

A service station is full of fuel, so do not pull in with a fire.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
What should you do with an engine fire?

Turn off the engine as soon as you can and avoid opening the hood

Opening the hood feeds the fire air, so shoot the extinguisher through louvers, radiator or from underneath.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
For a cargo fire in a van or box trailer, what should you do with the doors?

Keep them shut

Opening the doors supplies oxygen and can make the fire burn very fast, especially with hazardous cargo.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
When using a fire extinguisher, how close should you get to the fire?

Stay as far away as possible

Stay as far from the fire as you can while using the extinguisher.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
Where should you aim a fire extinguisher?

At the source or base of the fire

Aim at the base of the fire, not up in the flames.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
Which kinds of fire is a B:C fire extinguisher designed for?

Electrical fires and burning liquids

B:C extinguishers work on electrical fires and burning liquids.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
What can an A:B:C extinguisher put out that a B:C type is not designed for?

Burning wood, paper and cloth

The A:B:C type also works on wood, paper and cloth.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
Why should you not use water on an electrical fire?

It can cause shock

Water on an electrical fire can shock you.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
Why should you not use water on a gasoline fire?

It will spread the flames

Water spreads a gasoline fire.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
What must be done to a burning tire?

It must be cooled, and lots of water may be needed

A burning tire must be cooled, which may take lots of water.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
You are not sure which extinguisher to use on a hazardous materials fire. What should you do?

Wait for firefighters

If you are unsure, especially with hazardous materials, wait for firefighters.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
Where should you stand when using a fire extinguisher outdoors?

Upwind, so the wind carries the extinguisher to the fire

Position yourself upwind and let the wind carry the agent to the fire.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
When can you stop fighting a fire?

When whatever was burning has been cooled

No smoke or flame does not mean the fire cannot restart.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
Which class of fire involves gasoline, oil and grease?

Class B

Class B fires are greasy liquids like gasoline and oil, put out by smothering, cooling or heat shielding.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
How is a Class A fire of wood or paper put out?

By cooling and quenching with water or dry chemicals

Class A fires are ordinary combustibles put out by cooling and quenching.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
What should never be used on an electrical equipment fire?

Water

Electrical fires need non-conducting agents such as carbon dioxide or dry chemicals.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
How are fires in combustible metals put out?

With specialized extinguishing powders

Combustible metal fires need specialized extinguishing powders.
Section 2 · 2.21.3 – Fire Fighting ↗PDF, 41 MB
About how many deaths a year result from accidents involving people who drink alcohol?

Over 20,000

People who drink are involved in traffic accidents resulting in over 20,000 deaths every year.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
Which abilities does alcohol impair?

Muscle coordination, reaction time, depth perception and night vision

Alcohol impairs coordination, reaction time, depth perception and night vision, and also judgment.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
For some people, how many drinks does it take to show signs of impairment?

One

For some people one drink is all it takes.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
How much alcohol can the liver process per hour?

One-third of an ounce

The liver handles only one-third ounce of alcohol per hour, less than a standard drink.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
What will sober up a person who has been drinking?

Only time

The liver works at a fixed rate, so only time removes alcohol.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
What commonly measures the amount of alcohol in your body?

Blood Alcohol Concentration (BAC)

BAC is the common measure of alcohol in the body.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
Which of these contains the same amount of alcohol as a 12-ounce glass of 5% beer?

A 5-ounce glass of 12% wine

A 12-ounce beer, a 5-ounce glass of wine and a 1 1/2-ounce shot of liquor have the same alcohol.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
How big a shot of 80 proof liquor has the same alcohol as a 12-ounce beer?

1 1/2 ounces

A 1 1/2-ounce shot of 80 proof liquor equals one standard drink.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
How does the chance of a crash for drivers who have been drinking compare with drivers who have not?

It is much greater

Accident statistics show drinking drivers are much more likely to crash.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
What part of the brain does alcohol affect first?

The part that controls judgment and self-control

Because judgment goes first, drinkers may not know they are getting drunk.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
What determines your Blood Alcohol Concentration?

How much you drink, how fast you drink, and your weight

More alcohol, faster drinking and lower body weight all mean a higher BAC.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
Does it matter whether the alcohol comes from beer, wine or hard liquor?

No, it is the alcohol that affects performance

Two beers, two glasses of wine or two shots of liquor have the same effect.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
A BAC of .10 means what share of your total blood content is alcohol?

1/10 of 1 percent

BAC .10 means one thousandth of your blood is alcohol.
Section 2 · 2.22.1 – Alcohol and Driving ↗PDF, 41 MB
When may a driver use a drug a doctor has given him?

When the doctor says it will not affect safe driving ability

Use of a prescribed drug is permitted if the doctor says it will not affect safe driving.
Section 2 · 2.22.2 – Other Drugs ↗PDF, 41 MB
What can cold medicines bought over the counter do to a driver?

Make the driver drowsy

Some prescription and over-the-counter drugs such as cold medicines can make you drowsy.
Section 2 · 2.22.2 – Other Drugs ↗PDF, 41 MB
What is the only cure for fatigue?

Rest

Do not use drugs that hide fatigue, because only rest cures it.
Section 2 · 2.22.2 – Other Drugs ↗PDF, 41 MB
What can alcohol do to the effects of other drugs?

Make them much worse

Mixing alcohol with other drugs can make their effects much worse.
Section 2 · 2.22.2 – Other Drugs ↗PDF, 41 MB
You are so ill you cannot drive safely. When may you still drive?

In an emergency, to the nearest place you can safely stop

If you are too ill to drive you must not, except to reach the nearest safe place in an emergency.
Section 2 · 2.22.3 – Illness ↗PDF, 41 MB
What are hazardous materials?

Products that pose a risk to health, safety and property during transportation

Hazardous materials are products that are risky to health, safety and property in transport.
Section 2 · 2.23.1 – What Are Hazardous Materials? ↗PDF, 41 MB
What are the three intents of the hazardous materials rules?

Contain the product, communicate the risk, ensure safe drivers and equipment

The rules exist to contain, communicate and ensure safe drivers and equipment.
Section 2 · 2.23.2 – Why Are There Rules? ↗PDF, 41 MB
How does the shipper communicate the risk of hazardous materials?

With a shipping paper and diamond shaped hazard labels

Shipping papers and diamond-shaped labels warn dockworkers and drivers.
Section 2 · 2.23.2 – Why Are There Rules? ↗PDF, 41 MB
Where must hazardous materials shipping papers be kept relative to other shipping papers?

Identified or kept on top of the others

Responders must be able to find them quickly, so they must be marked or kept on top.
Section 2 · 2.23.2 – Why Are There Rules? ↗PDF, 41 MB
Where must you keep hazardous materials shipping papers while driving?

In a pouch on the driver's door or in clear view within reach

While driving, keep them in the door pouch or in clear view within reach.
Section 2 · 2.23.2 – Why Are There Rules? ↗PDF, 41 MB
Where must hazardous materials shipping papers be when you are out of the vehicle?

On the driver's seat

When you leave the vehicle, put the papers on the driver's seat.
Section 2 · 2.23.2 – Why Are There Rules? ↗PDF, 41 MB
How many identical placards must a placarded vehicle have?

At least four

Placards go on the front, rear and both sides.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
How large must placards be?

At least 9.84 inches (250 mm) square

Placards must be at least 9.84 inches square, turned upright on a point as a diamond.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
How many digits is a hazardous materials identification number?

Four

Identification numbers are four-digit codes used by first responders.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
Which letters come before an identification number on shipping papers?

NA or UN

Identification numbers are preceded by NA or UN.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
Which book lists hazardous chemicals and their identification numbers?

The US DOT Emergency Response Guidebook

The ERG lists the chemicals and the identification numbers assigned to them.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
Can you drive a vehicle carrying hazardous materials without a hazardous materials endorsement?

Yes, if the vehicle does not require placards

Without the endorsement you may drive a hazmat load only if placards are not required.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
What is required to get the hazardous materials endorsement?

Passing a written test on Section 9

Drivers of placarded vehicles must pass a written test on Section 9 material.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
A tank endorsement is required for tanks with an individual rated capacity of more than how many gallons?

119 gallons

The tank rule applies to tanks over 119 gallons each with an aggregate of 1,000 gallons or more.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
For a tank endorsement, what aggregate tank capacity is the threshold?

1,000 gallons or more

An aggregate of 1,000 gallons or more, with individual tanks over 119 gallons, needs a tank endorsement.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
Must the liquid or gas in a tank be hazardous for a tank endorsement to be required?

No

The tank endorsement depends on tank size, not on whether the contents are hazardous.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
What is it to drive a vehicle needing placards without a hazardous materials endorsement?

A crime

You will be cited and not allowed to drive your truck.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
If you do not know whether your vehicle needs placards, what should you do?

Ask your employer

Ask your employer whenever you are unsure about placards.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB
Why is failing to placard when needed dangerous after an accident?

Emergency help will not know of your hazardous cargo

Without placards, responders do not know about the hazardous cargo.
Section 2 · 2.23.3 – Lists of Regulated Products ↗PDF, 41 MB

Accidents, fires, alcohol and hazmat rules

Questions and answers

What are the three basic steps at any accident?

What is the first thing to do at an accident scene?

If your vehicle is involved in an accident, where should you try to move it?

If you stop to help at an accident, where should you park?

What should you set out to warn other traffic at an accident?

If you have a cell phone or CB at an accident, when should you call for help?

Without a phone, when should you send someone to call the police after an accident?

A qualified person is already helping the injured at an accident. What should you do?

When may you move a severely injured person?

How should you stop heavy bleeding?

What else should you do for an injured person?

Which is a cause of fire after an accident?

What tire conditions can cause vehicle fires?

What electrical problems can cause vehicle fires?

Which fuel-related actions can cause fires?

Which cargo conditions can cause fires?

During a trip, what should you check for signs of heat whenever you stop?

What should you check about the fire extinguisher during the vehicle inspection?

How should you use the mirrors to help prevent fires?

When should you study the instructions on your fire extinguisher?

Your vehicle catches fire. Where should you park?

Should you pull into a service station if your vehicle is on fire?

What should you do with an engine fire?

For a cargo fire in a van or box trailer, what should you do with the doors?

When using a fire extinguisher, how close should you get to the fire?

Where should you aim a fire extinguisher?

Which kinds of fire is a B:C fire extinguisher designed for?

What can an A:B:C extinguisher put out that a B:C type is not designed for?

Why should you not use water on an electrical fire?

Why should you not use water on a gasoline fire?

What must be done to a burning tire?

You are not sure which extinguisher to use on a hazardous materials fire. What should you do?

Where should you stand when using a fire extinguisher outdoors?

When can you stop fighting a fire?

Which class of fire involves gasoline, oil and grease?

How is a Class A fire of wood or paper put out?

What should never be used on an electrical equipment fire?

How are fires in combustible metals put out?

About how many deaths a year result from accidents involving people who drink alcohol?

Which abilities does alcohol impair?

For some people, how many drinks does it take to show signs of impairment?

How much alcohol can the liver process per hour?

What will sober up a person who has been drinking?

What commonly measures the amount of alcohol in your body?

Which of these contains the same amount of alcohol as a 12-ounce glass of 5% beer?

How big a shot of 80 proof liquor has the same alcohol as a 12-ounce beer?

How does the chance of a crash for drivers who have been drinking compare with drivers who have not?

What part of the brain does alcohol affect first?

What determines your Blood Alcohol Concentration?

Does it matter whether the alcohol comes from beer, wine or hard liquor?

A BAC of .10 means what share of your total blood content is alcohol?

When may a driver use a drug a doctor has given him?

What can cold medicines bought over the counter do to a driver?

What is the only cure for fatigue?

What can alcohol do to the effects of other drugs?

You are so ill you cannot drive safely. When may you still drive?

What are hazardous materials?

What are the three intents of the hazardous materials rules?

How does the shipper communicate the risk of hazardous materials?

Where must hazardous materials shipping papers be kept relative to other shipping papers?

Where must you keep hazardous materials shipping papers while driving?

Where must hazardous materials shipping papers be when you are out of the vehicle?

How many identical placards must a placarded vehicle have?

How large must placards be?

How many digits is a hazardous materials identification number?

Which letters come before an identification number on shipping papers?

Which book lists hazardous chemicals and their identification numbers?

Can you drive a vehicle carrying hazardous materials without a hazardous materials endorsement?

What is required to get the hazardous materials endorsement?

A tank endorsement is required for tanks with an individual rated capacity of more than how many gallons?

For a tank endorsement, what aggregate tank capacity is the threshold?

Must the liquid or gas in a tank be hazardous for a tank endorsement to be required?

What is it to drive a vehicle needing placards without a hazardous materials endorsement?

If you do not know whether your vehicle needs placards, what should you do?

Why is failing to placard when needed dangerous after an accident?

Questions and answers by topic