Pennsylvania Hazardous Materials Test 4

WHICH THREE HAZARD CLASSES SHOULD NOT BE LOADED INTO A TRAILER THAT HAS A HEATER/AIR CONDITIONER UNIT?

• Class 1

• Class 2

• Class 5

• Class 2.1

• Class 3

Answer explanation

Class 1 (explosives) and Class 2 (gases) should not be loaded into a trailer with a heater/air conditioner due to the risk of ignition or pressure build-up. Class 5 (oxidizers) and Class 3 (flammable liquids) are also hazardous but not specifically excluded.

YOUR LOAD INCLUDES 20 POUNDS OF DIVISION 2.3 GAS AND 1,001 POUNDS OF FLAMMABLE GAS. WHAT PLACARDS DO YOU NEED IF ANY?

• Poison gas

• flammable gas

• inhalation hazard

• You cannot load these materials together

Answer explanation

You cannot load Division 2.3 gas (poison gas) with flammable gas due to safety regulations. Therefore, the correct answer is that you cannot load these materials together.

A SHIPMENT DESCRIBED ON THE HAZARDOUS WASTE MANIFEST MAY ONLY BE DELIVERED TO ANOTHER _______ CARRIER OR TREATMENT FACILITY, WHICH THEN SIGNS THE ______ GIVING YOU A COPY WHICH YOU MUST KEEP.

• Nearby

• Registered

• Uniform Hazardous Waste Manifest

Answer explanation

A shipment of hazardous waste must be delivered to a registered carrier or treatment facility. The facility then signs the Uniform Hazardous Waste Manifest, which you must keep as proof of the transfer.

WHAT IS A SAFE HAVEN?

• A rest place for drivers who carry hazardous materials

• An approved place for parking unattended vehicles loaded with explosives

Answer explanation

A safe haven is specifically designated for parking unattended vehicles loaded with explosives, ensuring safety and compliance with regulations. The first option refers to drivers, not the vehicles themselves.

CYLINDERS CONTAINING COMPRESSED GASES MUST BE:

• Loaded into racks attached to the vehicle

• All on the above

Answer explanation

Cylinders containing compressed gases must be properly secured to prevent accidents. Loading them into racks attached to the vehicle ensures safety and stability during transport, making 'All on the above' the correct choice.

WHO DETERMINES THE PRODUCT'S I.D. NUMBER, HAZARD CLASS, PACKING GROUP, AND THEN SENDS PRODUCTS FROM ONE PLACE TO ANOTHER BY TRUCK, RAIL, VESSEL, OR AIRPLANE?

• The driver

• The shipper

Answer explanation

The shipper is responsible for determining the product's I.D. number, hazard class, and packing group, and for arranging the transportation of products by truck, rail, vessel, or airplane.

A HAZARDOUS MATERIALS IDENTIFICATION NUMBER MUST APPEAR ON THE ______________ AND ON THE ______________. THE IDENTIFICATION NUMBER MUST ALSO APPEAR ON CARGO TANKS AND OTHER BULK PACKAGING.

• Front of the tractor

• back of the trailer

• Shipping papers

• package

Answer explanation

The hazardous materials identification number must appear on the shipping papers and the package to ensure proper handling and compliance with safety regulations.

WHEN FUELING A PLACARDED VEHICLE, SOMEONE MUST ALWAYS BE:

• At the emergency power shut off for the pump

• At the nozzle, controlling the fuel flow

Answer explanation

When fueling a placarded vehicle, it is crucial that someone is at the nozzle, controlling the fuel flow, to ensure safety and prevent spills or accidents. This is why 'At the nozzle, controlling the fuel flow' is the correct answer.

WHAT TYPE OF FIRE EXTINGUISHER MUST PLACARDED VEHICLES CARRY?

• The power unit of placarded vehicles must has a fire extinguisher with a UL rating of 8 B:C or more

• The power unit of placarded vehicles must has a fire extinguisher with a UL rating of 10 B:C or more

Answer explanation

The correct choice is that placarded vehicles must carry a fire extinguisher with a UL rating of 10 B:C or more, as this rating ensures adequate fire suppression capabilities for hazardous materials.

AN “A/W” IN THE FIRST COLUMN OF THE HAZARDOUS MATERIALS TABLE MEANS:

• This material has no restrictions when shipped by air only

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

Answer explanation

An 'A/W' indicates that the material has restrictions when shipped by air and/or water, making the second choice correct. It does not imply no restrictions for air shipments.