HAZWOPER Technician

Practice Exam

Knowledge Check

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

gather information and attempt to understand the current situation.

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

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.

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

CPC

SCBA

IDLH

APR

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

EMS personnel will typically wear higher levels of respiratory protection.

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

EMS personnel must wear ballistic protection.

EMS PPE includes a sidearm.

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

Incident Management System (IMS).

Memorandum of Understanding (MOU).

National Response Framework (NRF).

National Incident Management System (NIMS).

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

itching, scratching, and bloody skin lesions.

sudden gastrointestinal distress.

delayed symptoms that include pulmonary edema and coughing up blood.

immediate symptoms such as coughing and throat irritations.

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

chemical

thermal

mechanical

radiological

7. What type of incident requires unified command?

Level I

Level II

Level IV

Level III

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

responders should withdraw immediately.

the IC is no longer needed.

the incident is destabilizing.

the IAP is effective.

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

preserve

destroy

contain

identify

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

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.

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

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

set up a decon zone.

follow local procedures for emergency decontamination.

sample themselves to determine the contaminant.

notify law enforcement.

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

Atmospheres

kPa

psig

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

hazard assessment.

size-up.

safety checks.

preincident planning.

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

Green

Red

Yellow

Orange

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

is not effective in large or complex hazmat incidents.

can guide responders' actions at hazmat incidents.

is most effective in large or complex hazmat incidents.

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

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

on-scene debriefing.

shelter in place.

evacuation.

progress reports.

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

Victims should be identified.

Victims should be instructed to disrobe.

Responders should undergo decon.

Technical decon should be set up.

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

Biological toxins

Viruses

Bacteria

Rickettsias

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

Absorption

Resorption

Sorption

Adsorption

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

downwind

upwind

inside

opposite

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

evaporation.

chemical degradation.

dilution.

brushing and scraping.

22. Decontamination usually takes place within the:

cold zone.

hot zone.

command zone.

warm zone.

23. 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

The conversion of one substance to another

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

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

the urgency in removing the victim from the contaminated environment.

how much media coverage is involved.

temperature and wind conditions.

the local terrain and available waterways.

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

oxygen

fuel

autoignition

activation

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

Catalyst

Inhibitor

Fuel

Contamination

27. 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 C

Level B

Level A

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

multiple compartments.

black, heat-absorbing paint.

large bulky double shelling and heavy insulation.

large hemispherical heads on both ends.

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

A leave of absence

Exposure justification

Exposure records

Immediate hospitalization

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.

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

Mexico does not require placards for radioactive materials.

Page 4 of 5

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

unavoidable risks.

potential ignition sources.

variables to eliminate.

potential site hazards.

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

It provides exposure protection from liquid chemicals.

Gases and vapors can permeate the garments.

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.

33. 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?

Particulate

Hemispheric

Plume

Cloud

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

wind speed, barometric pressure, and time of day.

dispersion patterns, rapid release, and detonation.

energy release, corrosivity, and toxicity.

radioactivity, pressure, and temperature.

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

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

package and triage them appropriately.

thoroughly decontaminate them before transferring them to EMS.

apply first aid and return them to an ambulatory state.

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

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

isolated.

decontaminated.

kept away from victims.

destroyed.

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

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.

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

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

RIBC

Nonbulk

FIBC

Liquid

40. 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

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

Marking

Placard

Four-digit ID number

Label

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

Increased chaos on scene

Effective command and control

Decreased accountability

Size-up becomes unnecessary

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

A sudden change in pressure

Consistent temperatures

Alarm sounding on a photoionization detector.

Black smoke

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

organ

external

environmental

cellular

45. A Level II incident:

will most likely not be concluded by any one agency.

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

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

does not require the use of chemical protective clothing.

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

Exposure

Release

Stress

Dispersion

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

emergency responders entering the hot zone.

civilian and emergency responder victims.

fire and rescue operations.

all emergency services organizations.

48. A highway vehicle without a placard:

is illegal.

should be stopped and inspected for terrorist activity.

may still be carrying hazardous materials.

will NOT be carrying hazardous materials.

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

Low pressure

Cryogenic

Nonpressure

High pressure

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

The Table of Initial Isolation and Protective Action Distances

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

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