HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

1. A Level II incident:

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

will most likely not be concluded by any one agency.

does not require the use of chemical protective clothing.

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

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

Yellow

Red

Orange

Green

3. What type of incident requires unified command?

Level IV

Level I

Level III

Level II

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

Sorption

Resorption

Absorption

Adsorption

5. A highway vehicle without a placard:

will NOT be carrying hazardous materials.

may still be carrying hazardous materials.

is illegal.

should be stopped and inspected for terrorist activity.

6. Decontamination usually takes place within the:

command zone.

warm zone.

hot zone.

cold zone.

7. 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.

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

Contamination

Catalyst

Inhibitor

Fuel

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

The ID Guide in the yellow-bordered pages

The Public Safety Section in the orange-bordered pages

The green highlighted sections of the blue-bordered pages

The Table of Initial Isolation and Protective Action Distances

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

Low pressure

Cryogenic

High pressure

Nonpressure

Page 2 of 5

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

set up a decon zone.

notify law enforcement.

sample themselves to determine the contaminant.

follow local procedures for emergency decontamination.

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

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

fuel

autoignition

activation

oxygen

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

decontaminated.

kept away from victims.

destroyed.

isolated.

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

Bacteria

Viruses

Biological toxins

Rickettsias

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

National Incident Management System (NIMS).

Memorandum of Understanding (MOU).

Incident Management System (IMS).

National Response Framework (NRF).

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

IDLH

SCBA

APR

CPC

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

thoroughly decontaminate them before transferring them to EMS.

apply first aid and return them to an ambulatory state.

package and triage them appropriately.

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

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

sudden gastrointestinal distress.

delayed symptoms that include pulmonary edema and coughing up blood.

immediate symptoms such as coughing and throat irritations.

itching, scratching, and bloody skin lesions.

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

preincident planning.

hazard assessment.

safety checks.

size-up.

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

Exposure

Dispersion

Stress

Release

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

FIBC

Liquid

RIBC

Nonbulk

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

Immediate hospitalization

Exposure records

A leave of absence

Exposure justification

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

is most effective in large or complex hazmat incidents.

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

is not effective in large or complex hazmat incidents.

can guide responders' actions at hazmat incidents.

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

Effective command and control

Increased chaos on scene

Size-up becomes unnecessary

Decreased accountability

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

the IAP is effective.

the IC is no longer needed.

the incident is destabilizing.

responders should withdraw immediately.

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

potential ignition sources.

variables to eliminate.

unavoidable risks.

potential site hazards.

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

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

Any erroneous or incomplete placarding or markings

Peculiar smells, visible vapor clouds, and radiant heat

The conversion of one substance to another

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

black, heat-absorbing paint.

large hemispherical heads on both ends.

multiple compartments.

large bulky double shelling and heavy insulation.

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

Alarm sounding on a photoionization detector.

A sudden change in pressure

Black smoke

Consistent temperatures

Page 4 of 5

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

progress reports.

evacuation.

shelter in place.

on-scene debriefing.

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

chemical

mechanical

radiological

thermal

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

psig

Atmospheres

kPa

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

preserve

destroy

contain

identify

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

downwind

upwind

inside

opposite

36. In Step 1 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.

37. 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 C

Level A

Level D

38. 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

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

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

EMS personnel will typically wear higher levels of respiratory protection.

EMS PPE includes a sidearm.

EMS personnel must wear ballistic protection.

40. 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

Page 5 of 5

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.

how much media coverage is involved.

temperature and wind conditions.

the urgency in removing the victim from the contaminated environment.

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

Gases and vapors can permeate the garments.

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

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

It provides exposure protection from liquid chemicals.

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?

Four-digit ID number

Placard

Label

Marking

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

brushing and scraping.

evaporation.

dilution.

chemical degradation.

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

Mexico does not require placards for radioactive materials.

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

Mexico has several placards for materials that may be inhaled.

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

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

Victims should be instructed to disrobe.

Responders should undergo decon.

Victims should be identified.

Technical decon should be set up.

47. In Step 4 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.

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

environmental

cellular

external

organ

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

emergency responders entering the hot zone.

fire and rescue operations.

civilian and emergency responder victims.

all emergency services organizations.

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

energy release, corrosivity, and toxicity.

dispersion patterns, rapid release, and detonation.

radioactivity, pressure, and temperature.

wind speed, barometric pressure, and time of day.

HAZWOPER Technician

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