HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

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

Yellow

Orange

Red

Green

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

Absorption

Sorption

Adsorption

Resorption

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

safety checks.

size-up.

hazard assessment.

preincident planning.

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

Memorandum of Understanding (MOU).

National Incident Management System (NIMS).

National Response Framework (NRF).

Incident Management System (IMS).

5. Decontamination usually takes place within the:

hot zone.

cold zone.

warm zone.

command zone.

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

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

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 should be considered at all hazmat incidents.

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

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

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.

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

thermal

mechanical

chemical

radiological

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

destroy

preserve

identify

contain

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

evacuation.

progress reports.

shelter in place.

on-scene debriefing.

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11. 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

Particulate

Cloud

Hemispheric

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

Nonpressure

Low pressure

Cryogenic

High pressure

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

activation

fuel

autoignition

oxygen

14. 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.

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

gather information and attempt to understand the current situation.

15. 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.

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

Nonbulk

RIBC

Liquid

FIBC

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

Black smoke

Alarm sounding on a photoionization detector.

A sudden change in pressure

Consistent temperatures

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

SCBA

CPC

APR

IDLH

19. 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.

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

EMS personnel must wear ballistic protection.

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21. A Level II incident:

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

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

does not require the use of chemical protective clothing.

will most likely not be concluded by any one agency.

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

the IAP is effective.

responders should withdraw immediately.

the incident is destabilizing.

the IC is no longer needed.

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

opposite

inside

upwind

downwind

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

potential ignition sources.

variables to eliminate.

unavoidable risks.

potential site hazards.

25. A highway vehicle without a placard:

should be stopped and inspected for terrorist activity.

will NOT be carrying hazardous materials.

is illegal.

may still be carrying hazardous materials.

26. What type of incident requires unified command?

Level II

Level I

Level IV

Level III

27. 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

Marking

Label

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

Exposure

Stress

Dispersion

Release

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

Bacteria

Viruses

Rickettsias

Biological toxins

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

The green highlighted sections of the blue-bordered pages

The Public Safety Section in the orange-bordered pages

The ID Guide in the yellow-bordered pages

The Table of Initial Isolation and Protective Action Distances

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31. 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.

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

multiple compartments.

large bulky double shelling and heavy insulation.

large hemispherical heads on both ends.

black, heat-absorbing paint.

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

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

Peculiar smells, visible vapor clouds, and radiant heat

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

Technical decon should be set up.

Victims should be instructed to disrobe.

Victims should be identified.

Responders should undergo decon.

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

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

environmental

organ

external

cellular

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

can guide responders' actions at hazmat incidents.

is not effective in large or complex hazmat incidents.

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

is most effective in large or complex hazmat incidents.

38. 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.

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

Gases and vapors can permeate the garments.

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

immediate symptoms such as coughing and throat irritations.

sudden gastrointestinal distress.

delayed symptoms that include pulmonary edema and coughing up blood.

itching, scratching, and bloody skin lesions.

40. 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

Placard

Marking

Label

Page 5 of 5

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

Immediate hospitalization

Exposure justification

Exposure records

A leave of absence

42. 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.

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

evaporation.

brushing and scraping.

chemical degradation.

dilution.

44. 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

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

Atmospheres

psig

kPa

46. 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 B

Level C

Level D

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

Inhibitor

Fuel

Contamination

Catalyst

48. 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.

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

decontaminated.

destroyed.

kept away from victims.

isolated.

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

sample themselves to determine the contaminant.

notify law enforcement.

set up a decon zone.

follow local procedures for emergency decontamination.

HAZWOPER Technician

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