Loading and unloading HazMat

Question 1

Which tool should you never use when loading containers of HazMat?

Accepted Answer

Hooks

Answer

Hand trucks

Answer

Wheel chocks

Question 2

What must you do before loading or unloading HazMat?

Accepted Answer

Set the parking brake and make sure the vehicle will not move

Answer

Remove the placards from the vehicle

Answer

Open every package to check the contents

Question 3

Why should HazMat be loaded away from heat sources?

Accepted Answer

Many products become more hazardous when exposed to heat

Answer

Heat makes the labels fall off

Answer

Heat makes packages heavier

Question 4

Is it legal to move a vehicle that has leaking HazMat on board?

Accepted Answer

No, it is illegal

Answer

Yes, to the next scheduled stop

Answer

Yes, if the leak is slow

Question 5

Why must containers of HazMat be braced?

Accepted Answer

To prevent movement of packages during transportation

Answer

To make unloading faster

Answer

To keep the labels facing outward

Question 6

Around which of these hazard classes must you never smoke during loading or unloading?

Accepted Answer

Class 5 (Oxidizers)

Answer

Class 8 (Corrosives)

Answer

Class 9 (Miscellaneous)

Question 7

Which list names the classes you must never smoke around when loading?

Accepted Answer

Explosives, flammable gas, flammable liquids, flammable solids, and oxidizers

Answer

Corrosives, radioactive materials, and poisons

Answer

Non-flammable gases, corrosives, and miscellaneous materials

Question 8

With which containers should you be especially careful when loading?

Accepted Answer

Containers that have valves or other fittings

Answer

Containers made of cardboard

Answer

Containers lighter than 10 pounds

Question 9

During the trip, may you open a HazMat package to check its contents?

Accepted Answer

No, do not open any package during the trip

Answer

Yes, at any rest area

Answer

Yes, if the shipper is told afterward

Question 10

May you transfer HazMat from one package to another while in transit?

Accepted Answer

Never

Answer

Yes, if a package is nearly empty

Answer

Yes, if both packages are the same size

Question 11

Which package may be emptied while it is still on the vehicle?

Accepted Answer

A cargo tank

Answer

A drum

Answer

A cylinder

Question 12

Special cargo heater rules apply when loading which classes?

Accepted Answer

Class 1, Class 2.1, and Class 3

Answer

Class 6, Class 7, and Class 8

Answer

Class 4, Class 5, and Class 9

Question 13

A trailer has an automatic cargo heater and air conditioner unit. Should you load flammable liquids in it?

Accepted Answer

Not unless you have read all the related rules

Answer

Yes, as long as the unit is set to cool

Answer

Yes, automatic units are exempt

Question 14

For which classes are overhang or tailgate loads not allowed?

Accepted Answer

Class 1, Class 4, and Class 5

Answer

Class 2, Class 3, and Class 8

Answer

Class 6, Class 7, and Class 9

Question 15

When may Class 1, 4, or 5 materials be loaded outside a closed cargo space?

Accepted Answer

When all packages are fire and water-resistant, or covered with a fire and water-resistant tarp

Answer

When the trip is shorter than 50 miles and made in daylight

Answer

When the weather forecast is dry and no rain is expected

Question 16

What must you do with your engine before loading or unloading explosives?

Accepted Answer

Turn it off

Answer

Leave it idling

Answer

Run it at high idle to charge the brakes

Question 17

How do you disable a cargo heater before loading explosives?

Accepted Answer

Disconnect the heater power sources and drain the heater fuel tanks

Answer

Switch the thermostat to its lowest setting

Answer

Cover the heater with a tarp

Question 18

Before loading explosives, what do you look for in the cargo space?

Accepted Answer

Sharp points such as bolts, screws, nails, and broken panels or floorboards

Answer

Placards and labels left over from earlier loads

Answer

Extra space where packages can be stacked higher

Question 19

Which explosives require a floor lining in the cargo space?

Accepted Answer

Division 1.1, 1.2, or 1.3

Answer

Division 1.4 only

Answer

Division 1.5 and 1.6 only

Question 20

What material must the floor liner be when hauling Division 1.1, 1.2, or 1.3 explosives?

Accepted Answer

Nonmetallic material or nonferrous metal

Answer

Any metal, including iron alloys

Answer

Iron sheeting only

Question 21

What is a nonferrous metal?

Accepted Answer

Any metal that does not contain iron or iron alloys

Answer

Any metal that does not rust

Answer

Any metal thinner than one inch

Question 22

How should packages of explosives be handled?

Accepted Answer

Never dropped, thrown, or rolled

Answer

Rolled carefully on their sides

Answer

Moved with metal hooks

Question 23

When may you transfer Division 1.1, 1.2, or 1.3 explosives from one vehicle to another on a public roadway?

Accepted Answer

Only in an emergency

Answer

Whenever both vehicles are placarded

Answer

Whenever traffic is light

Question 24

Safety requires an emergency transfer of explosives on the roadway. What must you set out to warn others?

Accepted Answer

Red warning reflectors, flags, or electric lanterns

Answer

Flares or fusees

Answer

Nothing, if your hazard lights are on

Question 25

A package of explosives shows dampness or an oily stain. What should you do?

Accepted Answer

Do not accept it

Answer

Accept it and load it on top

Answer

Wipe it dry and load it

Question 26

You are to pull doubles with Division 1.1 explosives in one trailer. Which of these in the combination makes the load prohibited?

Accepted Answer

A marked or placarded cargo tank

Answer

An empty van trailer

Answer

A trailer of unregulated freight

Question 27

Division 1.1 or 1.2 explosives may not be in a combination if the other vehicle carries which radioactive packages?

Accepted Answer

Class 7 packages labeled "Yellow III"

Answer

Any package with a transport index of zero

Answer

Only radioactive material in cargo tanks

Question 28

Which of these in the other vehicle of a combination also bars Division 1.1 or 1.2 explosives?

Accepted Answer

Division 2.3 poisonous gas or Division 6.1 poisonous materials

Answer

Class 9 miscellaneous materials in small packages

Answer

ORM-D consumer commodities in cartons

Question 29

How does the handbook describe Class 4 materials?

Accepted Answer

Solids that react to water, heat, and air, or even react spontaneously

Answer

Liquids that corrode metal and burn skin on contact

Answer

Gases that are stored under pressure in cylinders

Question 30

How must Class 4 and Class 5 materials be carried?

Accepted Answer

Completely enclosed in a vehicle or covered securely

Answer

On an open flatbed with no cover

Answer

Only in the front third of the trailer

Question 31

Some Class 4 and 5 materials become unstable and dangerous when wet. When must they be kept dry?

Accepted Answer

In transit and during loading and unloading

Answer

Only while the vehicle is moving

Answer

Only while parked overnight

Question 32

What do vehicles need when carrying materials subject to spontaneous combustion or heating?

Accepted Answer

Sufficient ventilation

Answer

A cargo heater

Answer

A sealed, airtight cargo space

Question 33

You are loading breakable containers of corrosive liquid by hand. How do you load them?

Accepted Answer

One by one, right side up

Answer

Several at a time, on their sides

Answer

Rolled gently onto the floor

Question 34

When may carboys of corrosive liquid be stacked?

Accepted Answer

Only if the lower tiers can bear the weight of the upper tiers safely

Answer

Whenever the trailer is full and floor space has run out

Answer

Never, whatever the strength of the lower tiers

Question 35

Where must nitric acid NOT be loaded?

Accepted Answer

Above any other product

Answer

On the floor of the trailer

Answer

Near the trailer doors

Question 36

How must charged storage batteries be loaded?

Accepted Answer

Right side up, so the liquid cannot spill, and where other cargo cannot fall on or short circuit them

Answer

On their sides, to save floor space, with the terminals facing the trailer wall

Answer

Under heavier freight, so that they are held down and cannot slide around

Question 37

Corrosive liquids must never be loaded next to or above which of these?

Accepted Answer

Class 5 oxidizers

Answer

Class 9 miscellaneous materials

Answer

Division 2.2 non-flammable gases

Question 38

Corrosive liquids must never be loaded with which of these?

Accepted Answer

Division 4.2 spontaneously combustible materials

Answer

Class 9 miscellaneous materials

Answer

Combustible liquids

Question 39

May corrosive liquids share a load with Division 1.5 blasting agents?

Accepted Answer

No, never load them together

Answer

Yes, if the corrosives are on the floor

Answer

Yes, if the load is under 1,001 pounds

Question 40

Your vehicle has no racks to hold compressed gas cylinders. What must the cargo space floor be?

Accepted Answer

Flat

Answer

Sloped toward the doors

Answer

Covered with a metal grid

Question 41

How must compressed gas cylinders be held?

Accepted Answer

Upright, in racks attached to the vehicle or in boxes that keep them from turning over

Answer

Loose on the floor, so that they can settle into place as the vehicle moves

Answer

Stacked in a pyramid against the front wall and tied with one strap

Question 42

When may a cylinder be loaded lying down?

Accepted Answer

When it is designed so the relief valve is in the vapor space

Answer

When it is less than half full

Answer

When it is longer than the trailer is tall

Question 43

In what kind of containers must Division 2.3 or Division 6.1 materials never be transported?

Accepted Answer

Containers with interconnections

Answer

Containers with handles

Answer

Containers made of plastic

Question 44

Where must a package labeled POISON never be loaded?

Accepted Answer

In the driver’s cab or sleeper

Answer

On the trailer floor

Answer

Near the rear doors

Question 45

What do you need before loading or unloading Class 2 materials in cargo tanks?

Accepted Answer

Special training

Answer

A second driver

Answer

A written route plan

Question 46

What is the number called that some packages of Class 7 radioactive materials bear?

Accepted Answer

The transport index

Answer

The packing group

Answer

The reportable quantity

Question 47

What does the transport index tell you?

Accepted Answer

The degree of control needed during transportation

Answer

The weight of the package in pounds

Answer

The number of placards required

Question 48

What is the maximum total transport index of all packages in a single vehicle?

Accepted Answer

50

Answer

10

Answer

100

Question 49

A radioactive package has a transport index of 1.1. How close to people or cargo space walls may it be left?

Accepted Answer

No closer than 2 feet

Answer

No closer than 6 inches

Answer

No closer than 10 feet

Question 50

Which hazard class uses transport indexes to limit how much can be loaded in one vehicle?

Accepted Answer

Class 7 (Radioactive)

Answer

Class 1 (Explosives)

Answer

Class 8 (Corrosives)

Question 51

Besides people, the closeness of radioactive packages to what else is controlled?

Accepted Answer

Animals and unexposed film

Answer

Fuel tanks and tires

Answer

Fire extinguishers and reflectors

Question 52

May a POISON labeled package be loaded in the same vehicle as animal or human food?

Accepted Answer

No, unless the poison package is overpacked in an approved way

Answer

Yes, as long as the food is loaded before the poison

Answer

Yes, as long as they are kept 2 feet apart

Question 53

For the mixed load rules, which of these is NOT a foodstuff?

Accepted Answer

Toothpaste

Answer

Bottled juice

Answer

Animal feed

Question 54

Charged storage batteries must not be loaded in the same vehicle with which material?

Accepted Answer

Division 1.1 explosives

Answer

Class 9 miscellaneous materials

Answer

Division 2.2 non-flammable gases

Question 55

You have dry silver cyanide on board and are offered cartons of battery acid. What does the Do Not Load table require?

Accepted Answer

Do not load them in the same vehicle

Answer

Load the acid above the cyanide

Answer

Load them side by side with a tarp between

Question 56

Class 1 detonating primers may be loaded with other explosives only under what condition?

Accepted Answer

They are in authorized containers or packages

Answer

The other explosives weigh less

Answer

The trip is made in daylight

Question 57

Division 2.3 Zone A poisonous gas must not be loaded in the same vehicle with which of these?

Accepted Answer

Class 3 flammable liquids

Answer

Class 9 miscellaneous materials

Answer

Division 2.2 non-flammable gases

Question 58

What do the mixed load rules say in general?

Accepted Answer

Some products must be loaded separately and cannot share the same cargo space

Answer

Any products may be mixed if they are braced

Answer

Only explosives have separation rules

Questions and answers

Which tool should you never use when loading containers of HazMat?

What must you do before loading or unloading HazMat?

Why should HazMat be loaded away from heat sources?

Is it legal to move a vehicle that has leaking HazMat on board?

Why must containers of HazMat be braced?

Around which of these hazard classes must you never smoke during loading or unloading?

Which list names the classes you must never smoke around when loading?

With which containers should you be especially careful when loading?

During the trip, may you open a HazMat package to check its contents?

May you transfer HazMat from one package to another while in transit?

Which package may be emptied while it is still on the vehicle?

Special cargo heater rules apply when loading which classes?

A trailer has an automatic cargo heater and air conditioner unit. Should you load flammable liquids in it?

For which classes are overhang or tailgate loads not allowed?

When may Class 1, 4, or 5 materials be loaded outside a closed cargo space?

What must you do with your engine before loading or unloading explosives?

How do you disable a cargo heater before loading explosives?

Before loading explosives, what do you look for in the cargo space?

Which explosives require a floor lining in the cargo space?

What material must the floor liner be when hauling Division 1.1, 1.2, or 1.3 explosives?

What is a nonferrous metal?

How should packages of explosives be handled?

When may you transfer Division 1.1, 1.2, or 1.3 explosives from one vehicle to another on a public roadway?

Safety requires an emergency transfer of explosives on the roadway. What must you set out to warn others?

A package of explosives shows dampness or an oily stain. What should you do?

You are to pull doubles with Division 1.1 explosives in one trailer. Which of these in the combination makes the load prohibited?

Division 1.1 or 1.2 explosives may not be in a combination if the other vehicle carries which radioactive packages?

Which of these in the other vehicle of a combination also bars Division 1.1 or 1.2 explosives?

How does the handbook describe Class 4 materials?

How must Class 4 and Class 5 materials be carried?

Some Class 4 and 5 materials become unstable and dangerous when wet. When must they be kept dry?

What do vehicles need when carrying materials subject to spontaneous combustion or heating?

You are loading breakable containers of corrosive liquid by hand. How do you load them?

When may carboys of corrosive liquid be stacked?

Where must nitric acid NOT be loaded?

How must charged storage batteries be loaded?

Corrosive liquids must never be loaded next to or above which of these?

Corrosive liquids must never be loaded with which of these?

May corrosive liquids share a load with Division 1.5 blasting agents?

Your vehicle has no racks to hold compressed gas cylinders. What must the cargo space floor be?

How must compressed gas cylinders be held?

When may a cylinder be loaded lying down?

In what kind of containers must Division 2.3 or Division 6.1 materials never be transported?

Where must a package labeled POISON never be loaded?

What do you need before loading or unloading Class 2 materials in cargo tanks?

What is the number called that some packages of Class 7 radioactive materials bear?

What does the transport index tell you?

What is the maximum total transport index of all packages in a single vehicle?

A radioactive package has a transport index of 1.1. How close to people or cargo space walls may it be left?

Which hazard class uses transport indexes to limit how much can be loaded in one vehicle?

Besides people, the closeness of radioactive packages to what else is controlled?

May a POISON labeled package be loaded in the same vehicle as animal or human food?

For the mixed load rules, which of these is NOT a foodstuff?

Charged storage batteries must not be loaded in the same vehicle with which material?

You have dry silver cyanide on board and are offered cartons of battery acid. What does the Do Not Load table require?

Class 1 detonating primers may be loaded with other explosives only under what condition?

Division 2.3 Zone A poisonous gas must not be loaded in the same vehicle with which of these?

What do the mixed load rules say in general?

Questions and answers by topic