CLP Hazardous Materials Transportation 2

Question 1

When is a driver NOT required to have a hazardous materials endorsement (HME) on their CDL?

Accepted Answer

When transporting small quantities of hazmat that do not require placards

Answer

The HME is required when transporting quantities of hazmat that require placards; small, non-placardable quantities may not require the endorsement.

Question 2

Which of the following is classified as a Division 1.1 explosive?

Accepted Answer

Mass explosion hazard explosives (dynamite)

Answer

Division 1.1 covers materials with a mass explosion hazard, such as dynamite, meaning a single item exploding could cause the entire load to detonate simultaneously.

Question 3

What does the four-digit identification number on a hazmat placard or orange panel represent?

Accepted Answer

The UN/NA identification number that identifies the specific hazardous material

Answer

The four-digit UN/NA number (e.g., UN 1203 for gasoline) uniquely identifies the hazardous substance and allows emergency responders to look it up in the ERG.

Question 4

A driver transporting hazardous materials should NOT park within how many feet of a bridge, tunnel, or building in a populated area unless necessary for operations?

Accepted Answer

300 feet

Answer

Federal regulations require hazmat vehicles to remain at least 300 feet from bridges, tunnels, or buildings in populated areas when parked, to limit risk in case of an incident.

Question 5

Which of the following materials requires the driver to stop before crossing railroad tracks regardless of other traffic conditions?

Accepted Answer

Any vehicle transporting placardable quantities of hazardous materials

Answer

Vehicles carrying placardable amounts of hazardous materials must always stop 15–50 feet before railroad crossings, look and listen, and proceed only when safe.

(CLP) Commercial Learner's Permit Practice Test

(CLP) Commercial Learner's Permit Practice Test

CLP Hazardous Materials Transportation 2