HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

1. A highway vehicle without a placard:

is illegal.

should be stopped and inspected for terrorist activity.

will NOT be carrying hazardous materials.

may still be carrying hazardous materials.

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 A

Level C

Level B

3. 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?

Label

Placard

Marking

Four-digit ID number

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

immediate symptoms such as coughing and throat irritations.

itching, scratching, and bloody skin lesions.

sudden gastrointestinal distress.

delayed symptoms that include pulmonary edema and coughing up blood.

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

Cryogenic

High pressure

Low pressure

Nonpressure

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

set up a decon zone.

follow local procedures for emergency decontamination.

sample themselves to determine the contaminant.

notify law enforcement.

7. 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.

8. 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

9. 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

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

Marking

Label

Placard

Four-digit ID number

Page 2 of 5

11. A Level II incident:

will most likely not be concluded by any one agency.

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.

12. 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

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

EMS personnel must wear ballistic protection.

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.

14. Decontamination usually takes place within the:

command zone.

warm zone.

cold zone.

hot zone.

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

Effective command and control

Decreased accountability

Size-up becomes unnecessary

Increased chaos on scene

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

organ

environmental

external

cellular

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

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.

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.

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

Victims should be identified.

Responders should undergo decon.

Victims should be instructed to disrobe.

Technical decon should be set up.

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

mechanical

thermal

chemical

radiological

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

potential site hazards.

variables to eliminate.

unavoidable risks.

potential ignition sources.

Page 3 of 5

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

National Response Framework (NRF).

National Incident Management System (NIMS).

Memorandum of Understanding (MOU).

Incident Management System (IMS).

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

gather information and attempt to understand the current situation.

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

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.

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

kPa

psig

Atmospheres

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

IDLH

SCBA

APR

CPC

25. What type of incident requires unified command?

Level IV

Level II

Level III

Level I

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

Bacteria

Rickettsias

Viruses

Biological toxins

27. 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.

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

Exposure

Dispersion

Release

Stress

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

size-up.

preincident planning.

safety checks.

hazard assessment.

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

Absorption

Resorption

Adsorption

Sorption

Page 4 of 5

31. 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.

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

is not effective in large or complex hazmat incidents.

can guide responders' actions at hazmat incidents.

is most effective in large or complex hazmat incidents.

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

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

Red

Green

Yellow

Orange

34. 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

The conversion of one substance to another

Peculiar smells, visible vapor clouds, and radiant heat

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

isolated.

destroyed.

kept away from victims.

decontaminated.

36. 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.

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

evaporation.

brushing and scraping.

dilution.

chemical degradation.

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

39. 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 does not require placards for radioactive materials.

Mexico has several placards for materials that may be inhaled.

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

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

Consistent temperatures

Black smoke

A sudden change in pressure

Alarm sounding on a photoionization detector.

Page 5 of 5

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

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.

Although some hazardous materials can permeate structural fire fighting clothing, the material will quickly dissipate.

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

large hemispherical heads on both ends.

multiple compartments.

large bulky double shelling and heavy insulation.

black, heat-absorbing paint.

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

fuel

activation

autoignition

oxygen

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

preserve

contain

identify

destroy

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

thoroughly decontaminate them before transferring them to EMS.

apply first aid and return them to an ambulatory state.

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

package and triage them appropriately.

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

Nonbulk

Liquid

FIBC

RIBC

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

upwind

downwind

inside

opposite

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

evacuation.

shelter in place.

on-scene debriefing.

progress reports.

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

Fuel

Inhibitor

Catalyst

Contamination

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

radioactivity, pressure, and temperature.

wind speed, barometric pressure, and time of day.

dispersion patterns, rapid release, and detonation.

energy release, corrosivity, and toxicity.

HAZWOPER Technician

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