Which of the following materials would require placarding as a Division 6.1 (Toxic) material?

What is the proper shipping name for a solution containing 35% hydrogen peroxide?

How many copies of the shipping paper must be kept in the vehicle while transporting hazardous materials?

You are transporting 900 lbs of acetone (Division 3) and 300 lbs of acetone cyanohydrin (Division 6.1). Neither amount individually meets the 1,001 lb threshold for placarding. What is the correct placarding action?

You are transporting Class 3 flammable liquids and need to make an overnight stop. What is the proper parking procedure for loading/unloading operations?

You notice a small leak from a 55-gallon drum of sodium hydroxide (caustic soda) solution while unloading. The spill is about 2 feet in diameter. What is the appropriate immediate action?

While stopped at a truck stop, you notice someone unfamiliar taking photos of your placarded vehicle. What should be your immediate response?

You are transporting a mixed load containing 600 lbs of dry ice (Division 2.2) and 450 lbs of a Division 4.3 material (dangerous when wet). The vehicle will remain unattended for 8 hours at a temperature of 85°F. What additional precautions are required?

You receive a shipping paper with the entry: “Paint, epoxy, flammable (UN1866), PG II, 250 lbs.” What additional information must be verified on this entry?

You are transporting a tank load of Class 3 flammable liquids and need to descend a steep grade. Which procedure should you follow?

You are transporting a shipment labeled with a Class 7 radioactive material placard. The shipping papers list the package as “Radioactive Material, Type A Package, UN 2915.” Which of the following statements about transport requirements for this shipment is correct?

On a shipping paper, a material is listed as “RQ, Gasoline, 3, UN 1203, II.” What does the abbreviation “RQ” signify, and what does it mean for the carrier?

A carrier is transporting two hazardous materials in the same vehicle: Division 1.1 explosives (UN 0009) and flammable liquids in non-bulk packaging (Class 3, UN 1203). According to the segregation table in 49 CFR 177.848, what is the required segregation action?

You are driving on an interstate highway carrying a load of UN 1955, Compressed Gas, Toxic, Flammable, n.o.s. (Division 2.3). Your vehicle is involved in a collision and the cargo container is breached, releasing gas. Several motorists appear to be affected by the fumes. After moving away from the vehicle uphill and upwind and calling 911, what is your NEXT most important action according to the Emergency Response Guidebook?

You are transporting 1,500 lbs of Class 3 flammable liquid (UN 1203, gasoline) in non-bulk packages and 200 lbs of Division 6.1 poisonous material (UN 2811, Packing Group II) in non-bulk packages. Based on the placarding rules in 49 CFR 172.504, which placards are required?

During a DOT inspection at a weigh station, the officer asks to see your hazardous materials shipping papers. You hand over the papers, but they are located in a folder underneath your personal mail in the cab. The shipping papers are complete and accurate. Has a violation occurred?

During a pre-trip inspection, you notice that one of the non-bulk packages in your load of UN 2793, Ferrous Metal Borings (Class 4.2, Spontaneously Combustible), has a damaged outer packaging with the inner contents visible. The shipping papers indicate PG III. What is the correct action?

A carrier picks up a load of Division 5.1 oxidizers (UN 1942, Ammonium Nitrate) from a facility. The shipping papers correctly identify the material. However, the shipper informs the driver that the security plan required under 49 CFR 172.800 has not been updated in over two years. The driver also notices there is no hazardous materials registration number (M-number) on the shipping papers. Based on these observations, which of the following best describes the compliance situation?

You are transporting a placarded load of Class 3 flammable liquids and need to stop for your 30-minute break required by hours-of-service regulations. You are on a divided highway in a rural area with no truck stops within 50 miles. The outside temperature is 95°F. You pull into an unpaved roadside rest area with dry grass. Which of the following actions is required before you leave the cab?

At 2:15 PM, while unloading a bulk tank trailer of UN 1789, Hydrochloric Acid (Class 8, Corrosive), at a customer facility, approximately 15 gallons are accidentally released onto the concrete pad. The facility’s containment system captures most of it, but some reaches a storm drain leading to a creek. The shipping papers list an RQ of 5,000 lbs for hydrochloric acid. The load was 6,000 gallons total. Who must be notified, and what are the timelines?

Which hazard class division includes materials that are considered “forbidden” for transportation by highway in ordinary commerce unless specifically authorized by DOT?

When must a driver keep the shipping papers within immediate reach while operating a commercial motor vehicle transporting hazardous materials?

What is the minimum aggregate gross weight of a Table 2 hazardous material that requires placarding on a transport vehicle?

As the driver of a vehicle carrying hazardous materials, you are involved in an accident that results in a release of HM. You have already notified the National Response Center. Under which additional circumstance are you also required to notify the Committee on Foreign Relations of the U.S. Senate and the Office of Congressional Relations?

You are loading a mixed cargo of Division 5.1 (Oxidizer) and Division 2.1 (Flammable Gas) cylinders. According to the segregation table in 49 CFR 177.848, which segregation code applies and what does it require?

During your pre-trip inspection, you discover that the DANGEROUS placard on the rear of your trailer is torn but still legible from 50 feet away. You also notice the placard on the front of the tractor is missing entirely. The shipment consists of non-bulk packages of two Table 2 materials totaling 3,500 pounds. What is the correct action?

A new driver is hired by a motor carrier that transports highway route-controlled quantities of radioactive materials (HRCQ). The carrier has a written HM security plan. How soon must the new driver receive security plan training, and what documentation is required?

You are hauling 8,500 gallons of UN 1203 (Gasoline, Class 3) in a cargo tank. While traveling on a two-lane rural highway at 2:00 AM, your tank begins leaking from a bottom valve at approximately 5 gallons per minute. There are no injuries, no fire, and no other vehicles involved. The nearest house is approximately 400 yards downwind. What should be your FIRST action after stopping the vehicle and activating your hazard lights?

You arrive at a shipper’s dock to pick up a load. The shipper has loaded 15 non-bulk packages of UN 2793 (Corrosive Solid, n.o.s., Class 8) and 10 non-bulk packages of UN 1830 (Sulfuric Acid, Class 8) onto your trailer. Both are Class 8 materials. According to the segregation table, what action is required?

A shipping paper entry reads: “RQ, Nitric Acid, 8, UN 2031, II, (ED)”. Based on this entry, analyze what each component communicates to the carrier and identify which of the following statements correctly interprets the entry.

While transporting a load of Class 3 flammable liquid, you notice a small leak in one of the drums. What is your FIRST action?

What is the maximum allowed pressure in a DOT Specification 17E cargo tank with a 20,000-gallon capacity transporting Class 3 flammable liquids?

When placarding a vehicle carrying Division 6.1 (poison) and Division 8 (corrosive) materials, which placarding requirements apply?

You’re transporting a tank of compressed oxygen. What is the minimum required safe distance from any flammable materials or open flames?

What document must accompany shipments of hazardous materials when crossing international borders?

When transporting radioactive materials (Category III), what is the required minimum separation from passengers in the cab?

What action is required if you discover a tanker containing anhydrous ammonia (Class 2.3) has become contaminated with oil?

When transporting Division 2.3 (poisonous gas), what is the required minimum quantity that triggers placarding?

What is the required emergency response telephone number for hazardous materials transport that must be accessible to the driver at all times?

When transporting a mixed load of hazardous materials including both Class 4 (flammable solids) and Class 9 (miscellaneous dangerous goods), which segregation requirements apply?

You are inspecting your vehicle before a trip carrying Division 1.1 explosives. During the pre-trip inspection, you discover that one of the placards on the trailer has become torn and is no longer fully legible from 50 feet. What must you do?

Which hazard class includes materials that are dangerous when wet and emit flammable gases upon contact with water?

You arrive at a railroad crossing and your vehicle is placarded for hazardous materials. The crossing has signals but no gates. After stopping, you must verify which distance requirement before proceeding?

A shipper hands you shipping papers that list “UN1203, Gasoline, 3, PG II” but the package labels show a Class 6.1 poison label. The package appears properly sealed and in good condition. What is the correct action?

You are transporting a mixed load containing Division 2.1 flammable gas and Division 5.1 oxidizer. During a rest stop, you discover the oxidizer packages have shifted and are now in direct contact with the flammable gas cylinders. What should you do?

What does the letter “D” in the DOT hazard class label code “D” signify for a bulk packaging marking?

While driving on a two-lane highway at night, you are transporting Class 1 explosives and experience a breakdown. You must stop on the shoulder. What is the minimum distance you must maintain from any bridge, tunnel, building, or place where people gather?

The Hazardous Materials Table in 49 CFR §172.101 lists several columns of information for each hazardous material. Which column specifies the packing group assignment for a material?

During a HazMat inspection, an enforcement officer finds that your shipping papers list the total quantity of hazardous material as “500 lbs” but your vehicle is actually carrying 750 lbs of the same material. The packaging, labeling, and placarding are all correct for the actual amount. What is the primary violation?

Which statement correctly describes the “ERG” (Emergency Response Guidebook) and its role in hazardous materials transportation?