HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

1. In Step 1 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.

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

Level D

Level B

Level A

Level C

3. What type of incident requires unified command?

Level I

Level III

Level II

Level IV

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

Cryogenic

High pressure

Nonpressure

Low pressure

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

decontaminated.

destroyed.

kept away from victims.

isolated.

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

size-up.

safety checks.

hazard assessment.

preincident planning.

7. 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.

8. 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 Table of Initial Isolation and Protective Action Distances

The ID Guide in the yellow-bordered pages

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

set up a decon zone.

notify law enforcement.

follow local procedures for emergency decontamination.

sample themselves to determine the contaminant.

10. 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.

the IAP is effective.

responders should withdraw immediately.

Page 2 of 5

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

Stress

Release

Exposure

Dispersion

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

Incident Management System (IMS).

Memorandum of Understanding (MOU).

National Response Framework (NRF).

National Incident Management System (NIMS).

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

Bacteria

Biological toxins

Rickettsias

Viruses

14. 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

Marking

Placard

15. 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.

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

Plume

Particulate

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

downwind

upwind

inside

opposite

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

large hemispherical heads on both ends.

multiple compartments.

black, heat-absorbing paint.

large bulky double shelling and heavy insulation.

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

civilian and emergency responder victims.

all emergency services organizations.

emergency responders entering the hot zone.

fire and rescue operations.

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

fuel

autoignition

activation

oxygen

Page 3 of 5

21. 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 personnel will typically wear higher levels of respiratory protection.

EMS PPE includes a sidearm.

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

Fuel

Inhibitor

Contamination

Catalyst

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

FIBC

Nonbulk

RIBC

Liquid

24. A Level II incident:

does not require the use of chemical protective clothing.

will most likely not be concluded by any one agency.

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

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

25. 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.

the urgency in removing the victim from the contaminated environment.

temperature and wind conditions.

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

Exposure records

Exposure justification

Immediate hospitalization

A leave of absence

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

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.

apply first aid and return them to an ambulatory state.

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

delayed symptoms that include pulmonary edema and coughing up blood.

sudden gastrointestinal distress.

immediate symptoms such as coughing and throat irritations.

itching, scratching, and bloody skin lesions.

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

Responders should undergo decon.

Victims should be instructed to disrobe.

Victims should be identified.

Technical decon should be set up.

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

mechanical

thermal

radiological

chemical

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

Four-digit ID number

Label

Marking

32. 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

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

brushing and scraping.

dilution.

chemical degradation.

evaporation.

34. 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.

35. 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.

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

Atmospheres

psig

kPa

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

Yellow

Green

Orange

Red

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

variables to eliminate.

potential site hazards.

potential ignition sources.

unavoidable risks.

39. Decontamination usually takes place within the:

hot zone.

warm zone.

command zone.

cold zone.

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

is not effective in large or complex hazmat incidents.

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.

Page 5 of 5

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

A sudden change in pressure

Black smoke

Alarm sounding on a photoionization detector.

Consistent temperatures

42. 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 should be considered at all hazmat incidents.

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

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

SCBA

APR

CPC

IDLH

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

cellular

environmental

organ

external

45. A highway vehicle without a placard:

will NOT be carrying hazardous materials.

should be stopped and inspected for terrorist activity.

may still be carrying hazardous materials.

is illegal.

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

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.

Gases and vapors can permeate the garments.

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

Size-up becomes unnecessary

Increased chaos on scene

Decreased accountability

Effective command and control

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

contain

identify

preserve

destroy

49. 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.

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

HAZWOPER Technician

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