Health & SafetyAnswer Key

Cdl Hazmat Test

79 community-sourced questions and answers. Free — no login.

Community-sourced. Answers may be wrong or out of date. Always verify with your official training portal before submitting. Not affiliated with any branch, agency, or vendor. Details.
QUESTION 1

in order to transport hazardous material which require placards

ANSWER

Must have CDL. Must pass written test on hazardous material. Must have Hazmat endorsement.

QUESTION 2

In column 1 the plus sign means

ANSWER

The proper shipping name.

QUESTION 3

who needs to check that the shipper correctly named and labeled and marked hazmat

ANSWER

The driver

QUESTION 4

Which of the following is proper definition of cargo tank?

ANSWER

Bulk container permanently attached to a vehicle

QUESTION 5

list that isn't used to find out if a material is regulated hazardous?

ANSWER

EPA dangerous materials list

QUESTION 6

Placard loads require what fire extinguisher rating?

ANSWER

10 B:C or more

QUESTION 7

When carrying hazmat you must stop and check tires once every?

ANSWER

2 hours or 100 miles

QUESTION 8

Tankers used to transport hazmat must be marked with?

ANSWER

hazmat id number of product.

QUESTION 9

driver must carry at all times dated certificate signed by employer updated every?

ANSWER

2 years

QUESTION 10

Hazardous material will be named on?

ANSWER

hazmat tables list and hazmat substances and Re-portable Quantities.

QUESTION 11

What is the shape and size of a placard?

ANSWER

10 3/4 inch square or diamond

QUESTION 12

Can't park hazmat vehicle within how many feet of a fire?

ANSWER

300 feet

QUESTION 13

Hazardous Materials that don't allow you to park within 5 feet of road?

ANSWER

Explosives A and B

QUESTION 14

A placard vehicle must have at least how many placards?

ANSWER

four

QUESTION 15

If hauling hazmat and you have a leaking tire you must?

ANSWER

Stop at safe place and repair

QUESTION 16

When fueling a placard vehicle someone must always be?

ANSWER

At the nozzle controlling the flow

QUESTION 17

what type of extinguisher is required in the power unit of a placard vehicle.

ANSWER

A U.I rating of 10 B/c or above

QUESTION 18

Hazmat class name or id number may not be used to describe a?

ANSWER

Non hazardous material

QUESTION 19

After a hazmat accident you should first do?

ANSWER

send someone for help and warn others

QUESTION 20

A placard on the trailer is intended to?

ANSWER

Communicate risk or hazmat

QUESTION 21

How many identical placards is a vehicle hauling hazmat required to display and where?

ANSWER

four. one on front and back and one on each side

QUESTION 22

The basic shipment of a hazmat product must include?

ANSWER

proper shipping name, hazmat class and id number

QUESTION 23

if X or RQ is in the HM column of a shipping paper entry the?

ANSWER

shipment is regulated by hazmat regulations

QUESTION 24

What placard must be used with inhalation hazmat load?

ANSWER

Poison

QUESTION 25

Which of the statements bout Radioactive labels is true?

ANSWER

Yellow III indicates the highest level of radioactivity

QUESTION 26

When transporting hazmat and non hazmat your bills must?

ANSWER

Describe hazmat first. Hazmat highlighted. Id materials by X or RQ in HM column.

QUESTION 27

On the Hazmat table column 1 shows?

ANSWER

to what shipping mode the information on that line appears

QUESTION 28

If the hazmat is classified as FORBIDDEN you should?

ANSWER

Refuse the load

QUESTION 29

The hazmat waste manifest should be?

ANSWER

Tabbed differently and kept on top of all other paperwork

QUESTION 30

You should never transport a package labeled poison if you are hauling?

ANSWER

Food products

QUESTION 31

when a spill of an RQ happens the carrier has how long to report spill?

ANSWER

30 days

QUESTION 32

cylinders containing compressed gases may only be loaded onto a vehicle without a flat floor or platform if cylinders are?

ANSWER

In boxes that will keep them from turning over. Loaded into racks attached to vehicle. Loaded in an upright or horizontal position.

QUESTION 33

if load requires placard what must shipper put on package?

ANSWER

The required label. The hazmat shipping name and id number. Name and address of shipper or consignee.

QUESTION 34

it is acceptable to use placard with DANGEROUS if?

ANSWER

you load less then 5000 pounds or specified materials at one place. You have two or more specified materials which total more than 1000 ponds.

QUESTION 35

responsible for packaging, labeling and preparing hazmat shipping paper is?

ANSWER

The shipper

QUESTION 36

what is a false statement about loading and unloading cargo tanks?

ANSWER

The person in attendance must be within 50 feet of the tanker.

QUESTION 37

How many different Hazard classes are there?

ANSWER

9

QUESTION 38

materials class listed FORBIDDEN so what kinds of materials are you allowed to haul?

ANSWER

You can't haul FORBIDDEN cargo and nothing

QUESTION 39

Hazard class that you are not allowed to smoke around?

ANSWER

Oxidizers. Flammables. Explosives,

QUESTION 40

A hazard class name or id number may not be used to describe what?

ANSWER

Non hazmat materials

QUESTION 41

A safe haven is defined as what?

ANSWER

A government approved place for parking vehicles loaded with explosives.

QUESTION 42

When transporting explosives, flammable liquid or flammable gas you may not?

ANSWER

Use cargo heaters.

QUESTION 43

Tankers used to transport hazmat on vehicles must be marked with?

ANSWER

The hazmat id number of product.

QUESTION 44

When should the placards be placed on a vehicle?

ANSWER

Before you drive it.

QUESTION 45

RQ identifies what?

ANSWER

Re-portable Quantity

QUESTION 46

Placard vehicles must stop how far from railroads?

ANSWER

15 to 50 feet

QUESTION 47

A placard must be?

ANSWER

3 inches away from any other markings

QUESTION 48

you should turn off your engine when loading flammable liquid unless?

ANSWER

The material does not need a placard.

QUESTION 49

A segregation and separation chart indicates what?

ANSWER

Products that can't be loaded together in same trailer.

QUESTION 50

Hazard class of all materials specifies what?

ANSWER

The risks associated with the materials

QUESTION 51

when transporting compressed gases you must?

ANSWER

Secure the cylinders in boxes or racks or brace flat.

QUESTION 52

shipping papers must be kept where when driving?

ANSWER

Within reach at all times

QUESTION 53

in column 1 the D symbol means what?

ANSWER

Domestic Transportation

QUESTION 54

what placard must be used with inhalation hazard load?

ANSWER

Poison

QUESTION 55

transporting explosives where can you not stop?

ANSWER

5 feet of road. 300 feet of a tunnel. near a fire.

QUESTION 56

after loading hazmat in cargo tank what must you do?

ANSWER

close all manholes and valves and be sure they are free of leaks

QUESTION 57

how many type of placards are there showing dot specifications?

ANSWER

31

QUESTION 58

A transport index relates to products that are what?

ANSWER

Radioactive

QUESTION 59

hauling explosives 1.1 and 1.3 what placard do you use?

ANSWER

explosives 1.1

QUESTION 60

At what time is it required for driver to have

ANSWER

When carrying chlorine.

QUESTION 61

spills exceeding the RQ must be reported to who?

ANSWER

DOT and EPA

QUESTION 62

Entries in Hazmat materials Table are shown in?

ANSWER

Alphabetical order by proper shipping

QUESTION 63

drivers must have what in there possession while transporting class a or b explosives?

ANSWER

The written route plan

QUESTION 64

when transporting class a or b explosives carriers must give each driver what?

ANSWER

A copy of FMCSR part 397

QUESTION 65

product ID markings on a tank must be?

ANSWER

Black 4 numbers on orange panels

QUESTION 66

driver that hauls hazmat must attend training when?

ANSWER

Every 3 years

QUESTION 67

What appears first on hazmat shipping paper?

ANSWER

The identification number

QUESTION 68

The shipper must attach a diamond shaped label to hazmat by?

ANSWER

Putting label on package. Putting label on tag attached to product. Putting a label on product.

QUESTION 69

When transporting hazmat waste you must?

ANSWER

Have the word WASTE before the name on bills. Sign a uniform Hazmat waste manifest. Carry a uniform hazmat waste manifest.

QUESTION 70

When a substance in the materials table is written in italics it means?

ANSWER

it's not the proper shipping name. Only those in regular type are proper.

QUESTION 71

A vehicle placard for division 1.1, 1.2 or 1.3 explosives.

ANSWER

May be left unattended in a safe haven

QUESTION 72

product id numbers must appear on each side and both ends of a tank containing what?

ANSWER

Hazmat exceeding 1000 gallons

QUESTION 73

which signals maybe used to warn of stopped vehicles that contain explosives?

ANSWER

Flares or fusees. Reflective triangles. Signal fires.

QUESTION 74

Radioactive II and Radioactive III are located from people and cargo space walls by referring to?

ANSWER

The transport index and the separation distances tables.

QUESTION 75

whenever your vehicle is placarded do not drive near open fires unless you what?

ANSWER

Can safely pass the fire without stopping.

QUESTION 76

An A/W in the first column of hazmat table means?

ANSWER

This material is only restricted when shipped by air and or water

QUESTION 77

shipping papers must always be kept where when behind the wheel and seat belt on?

ANSWER

within reach at all times. In pouch on drivers door.

QUESTION 78

You must have placards for explosives, poison gas or flammables exceeding what?

ANSWER

Any amount

QUESTION 79

if the words INHALATION HAZARD appear on the shipping papers you need?

ANSWER

Placard designating a poison.

Looking for a different version?

CBTs get updated every year. Search for the exact version you're taking (e.g. "cyber awareness 2025").

Search all study materials