HAZWOPER Technician

Practice Exam

Knowledge Check

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

how much media coverage is involved.

the urgency in removing the victim from the contaminated environment.

the local terrain and available waterways.

temperature and wind conditions.

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

Cryogenic

High pressure

Low pressure

Nonpressure

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

4. 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?

Marking

Placard

Label

Four-digit ID number

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

mechanical

radiological

thermal

chemical

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

opposite

upwind

inside

downwind

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

contain

destroy

identify

preserve

8. 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.

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

Mexico has several placards for materials that may be inhaled.

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

Mexico does not require placards for radioactive materials.

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

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

psig

Atmospheres

kPa

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11. 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.

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

external

organ

cellular

environmental

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

preincident planning.

size-up.

safety checks.

hazard assessment.

14. 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

Plume

Particulate

Cloud

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

EMS personnel will typically wear higher levels of respiratory protection.

EMS personnel must wear ballistic protection.

EMS PPE includes a sidearm.

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

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

evacuation.

on-scene debriefing.

shelter in place.

progress reports.

17. 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.

gather information and attempt to understand the current situation.

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

18. 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

19. 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 C

Level B

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

Nonbulk

RIBC

Liquid

FIBC

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

large hemispherical heads on both ends.

large bulky double shelling and heavy insulation.

black, heat-absorbing paint.

multiple compartments.

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

potential ignition sources.

potential site hazards.

variables to eliminate.

unavoidable risks.

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

fire and rescue operations.

civilian and emergency responder victims.

all emergency services organizations.

emergency responders entering the hot zone.

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

APR

SCBA

IDLH

CPC

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

Stress

Dispersion

Exposure

Release

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

Red

Yellow

Orange

Green

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

responders should withdraw immediately.

the incident is destabilizing.

the IAP is effective.

the IC is no longer needed.

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

dispersion patterns, rapid release, and detonation.

energy release, corrosivity, and toxicity.

wind speed, barometric pressure, and time of day.

radioactivity, pressure, and temperature.

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

decontaminated.

destroyed.

kept away from victims.

isolated.

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

Memorandum of Understanding (MOU).

Incident Management System (IMS).

National Incident Management System (NIMS).

National Response Framework (NRF).

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

It provides exposure protection from liquid chemicals.

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.

32. A Level II incident:

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

does not require the use of chemical protective clothing.

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

will most likely not be concluded by any one agency.

33. 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.

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

Inhibitor

Contamination

Catalyst

Fuel

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

fuel

activation

autoignition

oxygen

36. What type of incident requires unified command?

Level IV

Level I

Level II

Level III

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

Consistent temperatures

A sudden change in pressure

Alarm sounding on a photoionization detector.

Black smoke

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

A leave of absence

Exposure records

Immediate hospitalization

Exposure justification

39. 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

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

Biological toxins

Bacteria

Viruses

Rickettsias

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41. 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.

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

Resorption

Adsorption

Absorption

Sorption

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

is most effective in large or complex hazmat incidents.

can guide responders' actions at hazmat incidents.

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

is not effective in large or complex hazmat incidents.

44. Decontamination usually takes place within the:

hot zone.

warm zone.

command zone.

cold zone.

45. 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

46. 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

47. 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.

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

package and triage them appropriately.

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.

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

notify law enforcement.

set up a decon zone.

sample themselves to determine the contaminant.

follow local procedures for emergency decontamination.

50. 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.

HAZWOPER Technician

Practice Exam

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