HAZWOPER Technician

Practice Exam

Knowledge Check

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

sample themselves to determine the contaminant.

follow local procedures for emergency decontamination.

set up a decon zone.

notify law enforcement.

2. 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.

the local terrain and available waterways.

how much media coverage is involved.

3. Decontamination usually takes place within the:

warm zone.

hot zone.

cold zone.

command zone.

4. 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.

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

gather information and attempt to understand the current situation.

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

fuel

oxygen

autoignition

activation

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

kept away from victims.

decontaminated.

isolated.

destroyed.

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

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

EMS personnel must wear ballistic protection.

EMS PPE includes a sidearm.

EMS personnel will typically wear higher levels of respiratory protection.

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

Label

Placard

Marking

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

kPa

Atmospheres

psig

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

safety checks.

size-up.

preincident planning.

hazard assessment.

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

Memorandum of Understanding (MOU).

National Response Framework (NRF).

Incident Management System (IMS).

National Incident Management System (NIMS).

12. 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.

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

package and triage them appropriately.

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

Adsorption

Sorption

Resorption

Absorption

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

radiological

mechanical

thermal

chemical

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

16. 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

Cloud

Particulate

Plume

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

sudden gastrointestinal distress.

itching, scratching, and bloody skin lesions.

delayed symptoms that include pulmonary edema and coughing up blood.

immediate symptoms such as coughing and throat irritations.

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

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.

It provides exposure protection from liquid chemicals.

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

the IAP is effective.

the incident is destabilizing.

responders should withdraw immediately.

the IC is no longer needed.

20. In Step 1 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.

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.

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21. 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

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

Decreased accountability

Size-up becomes unnecessary

Effective command and control

Increased chaos on scene

23. 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

Label

Four-digit ID number

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

Orange

Yellow

Red

Green

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

Stress

Exposure

Dispersion

Release

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

Alarm sounding on a photoionization detector.

Consistent temperatures

A sudden change in pressure

Black smoke

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

wind speed, barometric pressure, and time of day.

radioactivity, pressure, and temperature.

dispersion patterns, rapid release, and detonation.

energy release, corrosivity, and toxicity.

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

Viruses

Biological toxins

Rickettsias

Bacteria

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

Catalyst

Inhibitor

Contamination

Fuel

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

large hemispherical heads on both ends.

black, heat-absorbing paint.

multiple compartments.

large bulky double shelling and heavy insulation.

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

inside

upwind

opposite

downwind

32. 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

33. 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 is necessary for anyone exposed to a hazardous material.

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.

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

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

is most effective in large or complex hazmat incidents.

can guide responders' actions at hazmat incidents.

is not effective in large or complex hazmat incidents.

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

Victims should be instructed to disrobe.

Technical decon should be set up.

Victims should be identified.

Responders should undergo decon.

36. 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

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

destroy

identify

contain

preserve

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

cellular

organ

environmental

external

39. A Level II incident:

does not require the use of chemical protective clothing.

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

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

will most likely not be concluded by any one agency.

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

evacuation.

progress reports.

on-scene debriefing.

shelter in place.

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

emergency responders entering the hot zone.

all emergency services organizations.

fire and rescue operations.

civilian and emergency responder victims.

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

chemical degradation.

dilution.

brushing and scraping.

evaporation.

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

CPC

IDLH

APR

SCBA

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

RIBC

Nonbulk

FIBC

Liquid

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

potential ignition sources.

variables to eliminate.

potential site hazards.

unavoidable risks.

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

Cryogenic

Nonpressure

Low pressure

High pressure

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

Level A

Level D

Level B

Level C

48. What type of incident requires unified command?

Level II

Level I

Level III

Level IV

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

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

Mexico does not require placards for radioactive materials.

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

Mexico has several placards for materials that may be inhaled.

50. A highway vehicle without a placard:

will NOT be carrying hazardous materials.

is illegal.

may still be carrying hazardous materials.

should be stopped and inspected for terrorist activity.

HAZWOPER Technician

Practice Exam

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