HAZWOPER Technician

Practice Exam

Knowledge Check

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1. Assessing the incident's conditions to recognize cues that indicate problems or potential problems is called:

preincident planning.

hazard assessment.

safety checks.

size-up.

2. Which statement about structural firefighters' protective clothing is accurate?

Although some hazardous materials can permeate structural fire fighting clothing, the material will quickly dissipate.

Gaps in structural fire fighting clothing only occur at the wrists and waist.

Gases and vapors can permeate the garments.

It provides exposure protection from liquid chemicals.

3. The technical decontamination process that uses a material to change the chemical structure of a hazardous material is:

dilution.

evaporation.

brushing and scraping.

chemical degradation.

4. What is the process in which a hazardous liquid interacts with (or is bound to) the surface of a sorbent material?

Absorption

Sorption

Resorption

Adsorption

5. What type of dispersion pattern forms an irregularly shaped pattern of an airborne hazardous material where wind and/or topography influence the downrange course from the point of release?

Hemispheric

Particulate

Plume

Cloud

6. Partially water-soluble chemicals will penetrate into the lower respiratory system and cause:

immediate symptoms such as coughing and throat irritations.

sudden gastrointestinal distress.

itching, scratching, and bloody skin lesions.

delayed symptoms that include pulmonary edema and coughing up blood.

7. Collision, impact, or internal overpressure are common causes of damage to a container caused by _____ energy.

chemical

radiological

mechanical

thermal

8. Which of the following is a 3.9-inch (100 mm) square-on-point diamond that identifies hazardous materials within packaging?

Four-digit ID number

Placard

Marking

Label

9. The reducing agent in the fire tetrahedron acts as the _____ source for the reaction.

activation

autoignition

oxygen

fuel

10. Which of the following statements about determining the need for emergency decontamination at an incident is MOST accurate?

Emergency decontamination is necessary for anyone exposed to a hazardous material.

Emergency decontamination should be considered at all hazmat incidents.

Emergency decontamination includes the transfer of a hazardous material in greater than acceptable quantities.

Emergency decontamination is the sudden failure of personal protective equipment or clothing.

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11. A highway vehicle without a placard:

may still be carrying hazardous materials.

should be stopped and inspected for terrorist activity.

is illegal.

will NOT be carrying hazardous materials.

12. In Step 1 of the APIE process, responders:

use the information gathered to determine what actions need to be taken to mitigate the incident.

gather information and attempt to understand the current situation.

perform tasks determined in the planning stage and direct actions to mitigate the incident.

monitor progress to see whether the response plan is working and continue throughout the incident.

13. Which cargo tank truck almost always carries flammable/combustible liquids such as gasoline, fuel oil, or alcohol?

High pressure

Low pressure

Cryogenic

Nonpressure

14. The three mechanisms of harm in a container hazardous materials incident are:

dispersion patterns, rapid release, and detonation.

wind speed, barometric pressure, and time of day.

energy release, corrosivity, and toxicity.

radioactivity, pressure, and temperature.

15. If a first responder becomes contaminated before realizing the situation, they should immediately withdraw and:

set up a decon zone.

notify law enforcement.

follow local procedures for emergency decontamination.

sample themselves to determine the contaminant.

16. The basic principles of decon are get it off, keep it off, and _____ it.

destroy

preserve

identify

contain

17. In Step 4 of the APIE process, responders:

use the information gathered to determine what actions need to be taken to mitigate the incident.

monitor progress to see whether the response plan is working and continue throughout the incident.

gather information and attempt to understand the current situation.

perform tasks determined in the planning stage and direct actions to mitigate the incident.

18. Decontamination usually takes place within the:

hot zone.

cold zone.

command zone.

warm zone.

19. Vapor protective clothing is usually part of what level of protection?

20. The decontamination site should be situated _____ of the hot zone.

inside

upwind

downwind

opposite

Page 3 of 5

21. What should happen before entry personnel enter the hot zone?

Technical decon should be set up.

Victims should be instructed to disrobe.

Victims should be identified.

Responders should undergo decon.

22. Overhead power lines, highway traffic, and rail lines are examples of:

unavoidable risks.

variables to eliminate.

potential ignition sources.

potential site hazards.

23. What will increase the rate of polymerization and decrease the activation energy necessary for further polymerization?

Fuel

Inhibitor

Contamination

Catalyst

24. A Level II incident:

requires resources from state/provincial agencies, federal agencies, and/or private industry.

does not require the use of chemical protective clothing.

is beyond the capabilities of the first responders on the scene.

will most likely not be concluded by any one agency.

25. Which type of respirator can remove vapor and gas?

SCBA

IDLH

CPC

APR

26. When protecting the public at an incident, if there is enough time, the best protective action generally is:

on-scene debriefing.

shelter in place.

progress reports.

evacuation.

27. The APIE process is a simple 4-step response model that:

is required to be used at all North American hazmat incidents.

is not effective in large or complex hazmat incidents.

is most effective in large or complex hazmat incidents.

can guide responders' actions at hazmat incidents.

28. How do EMS ensembles differ from fire service first responders?

EMS personnel will typically wear higher levels of respiratory protection.

EMS PPE includes a sidearm.

EMS PPE must provide blood- and body-fluid pathogen barrier protection.

EMS personnel must wear ballistic protection.

29. What is a likely result of following predetermined procedures at emergency incidents?

Effective command and control

Increased chaos on scene

Decreased accountability

Size-up becomes unnecessary

30. One difference between Mexican and U.S. placard, label, and marking systems is that:

information provided on Mexican labels and markings is likely to be in Spanish.

Mexico has several placards for materials that may be inhaled.

Mexico does not require placards for radioactive materials.

the Mexican system has several fewer hazard classes than the U.S. system.

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31. What is required for all first responders who have been exposed or potentially exposed to hazardous materials?

Exposure justification

A leave of absence

Exposure records

Immediate hospitalization

32. If an IC receives favorable progress reports from tactical and/or task supervisors, this is an indication that:

the incident is destabilizing.

the IAP is effective.

the IC is no longer needed.

responders should withdraw immediately.

33. Which of the following BEST describes physical processes of materials?

Peculiar smells, visible vapor clouds, and radiant heat

Any erroneous or incomplete placarding or markings

Processes that do NOT change the elemental composition of materials involved.

The conversion of one substance to another

34. What type of incident requires unified command?

Level II

Level III

Level I

Level IV

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

black, heat-absorbing paint.

multiple compartments.

large hemispherical heads on both ends.

large bulky double shelling and heavy insulation.

36. If service canines are brought into the hot zone, they must be:

kept away from victims.

isolated.

destroyed.

decontaminated.

37. Which of the following BEST describes a unit of pressure relative to the surrounding atmosphere?

kPa

Atmospheres

psig

38. Which type of biological/etiological hazard spreads mostly through the bite of infected arthropods?

Viruses

Biological toxins

Bacteria

Rickettsias

39. The three incident priorities at all hazardous materials incidents apply to:

emergency responders entering the hot zone.

fire and rescue operations.

all emergency services organizations.

civilian and emergency responder victims.

40. A written agreement defining roles and responsibilities within a Unified Command structure is known as a(an):

National Response Framework (NRF).

Incident Management System (IMS).

National Incident Management System (NIMS).

Memorandum of Understanding (MOU).

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41. The decision of whether to perform emergency or technical decon is determined based on the hazardous material involved and:

the local terrain and available waterways.

the urgency in removing the victim from the contaminated environment.

temperature and wind conditions.

how much media coverage is involved.

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

environmental

cellular

external

organ

43. Which of the following is a descriptive name, identification number, weight, or specification that includes instructions, cautions, or U.N. marks, and is required on outer packaging of hazardous materials?

Placard

Marking

Four-digit ID number

Label

44. What type of containers are flexible, collapsible bags or sacks, and also called bulk bags, bulk sacks, or tote bags?

Liquid

Nonbulk

RIBC

FIBC

45. Where would you find information on protective clothing and respiratory protection recommendations?

The ID Guide in the yellow-bordered pages

The green highlighted sections of the blue-bordered pages

The Public Safety Section in the orange-bordered pages

The Table of Initial Isolation and Protective Action Distances

46. What is the first step in the sequence proposed by the General Hazardous Materials Behavior Model (GEBMO)?

Exposure

Stress

Release

Dispersion

47. The aim of technical decon for nonambulatory victims is to:

thoroughly decontaminate them before transferring them to EMS.

make sure they understand the delayed health risks of the hazardous material.

apply first aid and return them to an ambulatory state.

package and triage them appropriately.

48. Which of the following is an indicator to withdraw immediately?

A sudden change in pressure

Consistent temperatures

Black smoke

Alarm sounding on a photoionization detector.

49. Under ANSI Z535.1, what color means Warning?

Green

Red

Orange

Yellow

50. Which level of PPE is only used when the specific material is known and has been measured, and the atmosphere is not IDLH?

Level D

Level B

Level A

Level C

HAZWOPER Technician

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