HAZWOPER Operations

1. Defensive operations are those in which:

serious container damage threatens a massive release.

responders take aggressive, direct action on the incident.

personnel evacuate the area and withdraw to a safe distance.

responders seek to confine the emergency to a given area without directly contacting the hazardous material.

2. Gases with a vapor density of _____ will rise quickly and spread to a wide geographical area.

one

less than one

more than one

one through five

3. MC-331 cargo tanks typically have bolted manways, inlet and outlet valves, and:

multiple compartments.

black, heat-absorbing paint.

large hemispherical heads on both ends.

large bulky double shelling and heavy insulation.

4. While streams and pools are common dispersion patterns for container breaches involving liquids, many liquids also:

spontaneously combust.

release vapors that act like gases.

remain under pressure once released.

freeze upon contact with the atmosphere.

5. In the NFPA 704 System, where are special hazards symbols located?

At the six o'clock position

At the twelve o'clock position

No special hazard symbols are authorized

Superimposed over the center of the diamond

6. In Canada, general caution signals are:

round.

triangular.

hexagonal.

rectangular.

7. Where in the ERG would you find information about terrorist use of chemical, biological, or radiological agents?

Green pages

Yellow-bordered pages

White pages, front section

White pages, back section

8. Which of the following is considered a nonbulk container?

Drum

Railcar

Cargo tank

Intermodal container

9. OSHA issues (and enforces) regulations relating to:

worker safety.

incident management systems.

international nuclear weapons storage.

transportation of nonhazardous materials.

10. Rounded or horseshoe-shaped ends are features associated with which type of tank trucks?

Cryogenic

Intermodal

Nonpressure

Low pressure

11. Hazardous materials accidents or incidents are most likely to occur during what type of transportation?

Air

Rail

Water

Highway

12. Which type of container breach has been documented as causing a BLEVE?

Puncture

Split or tear

Runaway cracking

Broken attachments

13. Which class of hazards is characterized by thermal and mechanical hazards in the form of blast pressure waves, shrapnel and fragmentation, and incendiary thermal effects?

Class 1

Class 2

Class 3

Class 4

14. What is the responsibility of Operations level personnel during the planning response phase of a hazmat incident?

They should delegate tasks and assignments.

They will establish scene control by isolating the hazardous area.

Planning the response is not the responsibility of Operations level personnel.

They should identify needed personnel and resources and request them from dispatch.

15. In the United States, the Department of Justice:

provides coordinated comprehensive federal response to any large-scale crisis.

oversees and enforces compliance with the Federal Hazardous Substances Act (FSHA).

assigns primary responsibility for operational response to threat or acts of terrorism to the Federal Bureau of Investigation.

protects the public's health, safety, and the environment from the effects of radiation from nuclear reactors, materials, and waste facilities.

16. What is the pressure exerted by a saturated vapor above its own liquid in a closed container?

Vapor density

Specific gravity

Vapor pressure

Solubility/miscibility

17. Safety data sheets:

are not formatted according to GHS specifications.

are confidential and should not be accessed by first responders.

should only be utilized by responders trained at the Technician level and above.

are often the best source of information about a particular material to which emergency responders have access.

18. The fittings for pressure tank cars are typically:

tucked away under the tank.

only accessible from the engine room.

found at both the front and the rear of the tank.

out of sight under the single protective housings on top of the tanks.

19. The hazardous materials most likely to be involved in incidents and accidents are those:

with long half lives.

most commonly used.

without any negative side-effects.

used in manufacture of weapons of mass destruction.

20. A leak from a domestic natural gas line on the consumer side of the meter is generally considered a:

Level I incident.

Level II incident.

Level III incident.

non hazmat incident.

21. The first step in mitigating or solving any hazmat incident is:

determining needed decontamination and establishing the decontamination line.

distinguishing the available types of PPE and determining which is most appropriate to use.

understanding the problem within the framework of incident priorities, IMS, and predetermined procedures.

effectively communicating with media and any national or federal organizations that may be able to lend assistance.

22. Which type of ionizing radiation consists of high-energy photons?

Alpha

Beta

Gamma

Neutron

23. Which statement about pipelines is MOST accurate?

Pipelines are always buried.

Hydrocarbons are often comingled in pipelines.

Each pipeline can carry only one type of product.

Pipeline operators are not required to provide information to emergency responders.

24. The damaging effects of ionizing radiation occur at the _____ level.

organ

cellular

external

environmental

25. The interior of an empty nonpressure/atmosphere storage tank should be treated as a:

safe shelter.

confined space.

nonhazardous space.

good place to perform decon.

26. Which of the following statements about pressure containers is the MOST accurate?

Pressure containers carry solids.

Pressure containers are not subject to chemical or mechanical stress.

Pressure containers are subject to stress when holding materials.

Hazmat incidents involving pressure containers are NOT dangerous to emergency responders.

27. Acute health effects are:

lethal but take a long time to show up.

long-term effects that may take years to appear.

short-term effects that may take years to appear.

short-term effects that appear within hours or days.

28. The chemical property used to describe substances that destroy living tissue is:

reactivity.

corrosivity.

flammability.

radioactivity.

29. Viscosity determines the ease with which a product will flow and is greatly affected by:

sublimation.

temperature.

specific gravity.

appearance and odor.

30. Cryogenic liquid tank cars protect the contents from temperatures for how long?

30 days

3 weeks

3 months

Indefinitely

Practice Exam

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