HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

1. 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.

2. A highway vehicle without a placard:

may still be carrying hazardous materials.

is illegal.

will NOT be carrying hazardous materials.

should be stopped and inspected for terrorist activity.

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

sudden gastrointestinal distress.

immediate symptoms such as coughing and throat irritations.

delayed symptoms that include pulmonary edema and coughing up blood.

itching, scratching, and bloody skin lesions.

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

identify

preserve

contain

destroy

5. 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 A

Level D

Level C

6. What type of incident requires unified command?

Level I

Level II

Level III

Level IV

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

High pressure

Cryogenic

Nonpressure

Low pressure

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

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

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

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

Emergency decontamination should be considered at all hazmat incidents.

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

Green

Red

Yellow

Orange

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

on-scene debriefing.

progress reports.

evacuation.

shelter in place.

12. Decontamination usually takes place within the:

hot zone.

cold zone.

command zone.

warm zone.

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

large bulky double shelling and heavy insulation.

large hemispherical heads on both ends.

black, heat-absorbing paint.

multiple compartments.

14. 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

Any erroneous or incomplete placarding or markings

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

15. 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.

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

thermal

chemical

radiological

mechanical

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

Atmospheres

kPa

psig

18. 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

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

National Incident Management System (NIMS).

National Response Framework (NRF).

Incident Management System (IMS).

Memorandum of Understanding (MOU).

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

inside

downwind

upwind

opposite

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

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.

gather information and attempt to understand the current situation.

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

destroyed.

decontaminated.

kept away from victims.

isolated.

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

APR

SCBA

CPC

IDLH

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

the incident is destabilizing.

the IC is no longer needed.

responders should withdraw immediately.

the IAP is effective.

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

Adsorption

Absorption

Resorption

Sorption

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

Fuel

Contamination

Catalyst

Inhibitor

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

Biological toxins

Bacteria

Rickettsias

Viruses

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

Increased chaos on scene

Size-up becomes unnecessary

Effective command and control

Decreased accountability

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

apply first aid and return them to an ambulatory state.

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.

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

Marking

Label

Four-digit ID number

Placard

Page 4 of 5

31. 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

Label

Marking

Four-digit ID number

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

organ

environmental

external

cellular

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

potential ignition sources.

unavoidable risks.

potential site hazards.

variables to eliminate.

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

temperature and wind conditions.

the urgency in removing the victim from the contaminated environment.

how much media coverage is involved.

the local terrain and available waterways.

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

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.

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

gather information and attempt to understand the current situation.

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

follow local procedures for emergency decontamination.

set up a decon zone.

sample themselves to determine the contaminant.

notify law enforcement.

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

The ID Guide in the yellow-bordered pages

The Table of Initial Isolation and Protective Action Distances

The green highlighted sections of the blue-bordered pages

The Public Safety Section in the orange-bordered pages

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

FIBC

RIBC

Nonbulk

Liquid

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

Exposure records

A leave of absence

Exposure justification

Immediate hospitalization

40. 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.

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41. 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.

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

43. 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.

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

EMS PPE includes a sidearm.

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

EMS personnel must wear ballistic protection.

EMS personnel will typically wear higher levels of respiratory protection.

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

Dispersion

Release

Exposure

Stress

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

oxygen

autoignition

fuel

activation

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

size-up.

safety checks.

preincident planning.

hazard assessment.

48. 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?

Plume

Hemispheric

Cloud

Particulate

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

brushing and scraping.

evaporation.

chemical degradation.

dilution.

50. 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.

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

It provides exposure protection from liquid chemicals.

HAZWOPER Technician

Practice Exam

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