HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

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

the IC is no longer needed.

the incident is destabilizing.

responders should withdraw immediately.

the IAP is effective.

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

destroy

identify

contain

preserve

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

Peculiar smells, visible vapor clouds, and radiant heat

The conversion of one substance to another

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

Any erroneous or incomplete placarding or markings

4. 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 personnel must wear ballistic protection.

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

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

decontaminated.

isolated.

destroyed.

kept away from victims.

6. What type of incident requires unified command?

Level IV

Level II

Level III

Level I

7. Decontamination usually takes place within the:

cold zone.

warm zone.

hot zone.

command zone.

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

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

hazard assessment.

preincident planning.

size-up.

safety checks.

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

potential site hazards.

unavoidable risks.

potential ignition sources.

variables to eliminate.

Page 2 of 5

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

RIBC

Nonbulk

FIBC

Liquid

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

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.

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

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

Biological toxins

Viruses

Rickettsias

Bacteria

14. 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.

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

Dispersion

Stress

Release

Exposure

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

radioactivity, pressure, and temperature.

energy release, corrosivity, and toxicity.

wind speed, barometric pressure, and time of day.

dispersion patterns, rapid release, and detonation.

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

itching, scratching, and bloody skin lesions.

immediate symptoms such as coughing and throat irritations.

delayed symptoms that include pulmonary edema and coughing up blood.

sudden gastrointestinal distress.

18. 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?

Cloud

Plume

Hemispheric

Particulate

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

National Response Framework (NRF).

National Incident Management System (NIMS).

Incident Management System (IMS).

Memorandum of Understanding (MOU).

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

follow local procedures for emergency decontamination.

notify law enforcement.

set up a decon zone.

sample themselves to determine the contaminant.

Page 3 of 5

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

environmental

external

organ

cellular

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

Increased chaos on scene

Decreased accountability

Size-up becomes unnecessary

Effective command and control

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

evacuation.

shelter in place.

progress reports.

on-scene debriefing.

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

all emergency services organizations.

civilian and emergency responder victims.

emergency responders entering the hot zone.

fire and rescue operations.

25. 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

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

psig

kPa

Atmospheres

27. A Level II incident:

does not require the use of chemical protective clothing.

will most likely not be concluded by any one agency.

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

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

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

thoroughly decontaminate them before transferring them to EMS.

package and triage them appropriately.

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

apply first aid and return them to an ambulatory state.

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

Black smoke

A sudden change in pressure

Consistent temperatures

Alarm sounding on a photoionization detector.

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

Nonpressure

High pressure

Low pressure

Cryogenic

Page 4 of 5

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

The Public Safety Section in the orange-bordered pages

The green highlighted sections of the blue-bordered pages

The ID Guide in the yellow-bordered pages

The Table of Initial Isolation and Protective Action Distances

32. A highway vehicle without a placard:

should be stopped and inspected for terrorist activity.

is illegal.

will NOT be carrying hazardous materials.

may still be carrying hazardous materials.

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

Mexico has several placards for materials that may be inhaled.

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

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

Mexico does not require placards for radioactive materials.

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

Level B

Level D

Level A

Level C

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

Adsorption

Sorption

Absorption

Resorption

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

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

Gases and vapors can permeate the garments.

It provides exposure protection from liquid chemicals.

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

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

fuel

autoignition

activation

oxygen

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

Yellow

Green

Red

Orange

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

gather information and attempt to understand the current situation.

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

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.

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

thermal

chemical

radiological

mechanical

Page 5 of 5

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

APR

CPC

IDLH

SCBA

42. 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

Four-digit ID number

Label

Marking

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

Responders should undergo decon.

Victims should be instructed to disrobe.

Technical decon should be set up.

Victims should be identified.

44. 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.

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

black, heat-absorbing paint.

multiple compartments.

large bulky double shelling and heavy insulation.

large hemispherical heads on both ends.

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

temperature and wind conditions.

the local terrain and available waterways.

how much media coverage is involved.

the urgency in removing the victim from the contaminated environment.

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

Placard

Four-digit ID number

Label

Marking

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

chemical degradation.

evaporation.

dilution.

brushing and scraping.

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

upwind

inside

opposite

downwind

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

Inhibitor

Contamination

Fuel

Catalyst

HAZWOPER Technician

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