HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

1. 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.

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 C

Level B

Level A

Level D

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

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

destroy

preserve

identify

contain

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

Release

Exposure

Dispersion

Stress

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

chemical degradation.

evaporation.

brushing and scraping.

dilution.

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

National Incident Management System (NIMS).

Incident Management System (IMS).

Memorandum of Understanding (MOU).

National Response Framework (NRF).

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

Decreased accountability

Effective command and control

Size-up becomes unnecessary

Increased chaos on scene

9. A Level II incident:

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

will most likely not be concluded by any one agency.

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

does not require the use of chemical protective clothing.

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

temperature and wind conditions.

how much media coverage is involved.

the local terrain and available waterways.

the urgency in removing the victim from the contaminated environment.

Page 2 of 5

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

potential ignition sources.

unavoidable risks.

potential site hazards.

variables to eliminate.

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

preincident planning.

safety checks.

hazard assessment.

size-up.

13. 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

14. Decontamination usually takes place within the:

command zone.

warm zone.

cold zone.

hot zone.

15. What type of incident requires unified command?

Level IV

Level I

Level III

Level II

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

A leave of absence

Immediate hospitalization

Exposure records

Exposure justification

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

autoignition

fuel

activation

oxygen

18. 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.

19. 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.

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

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

Gases and vapors can permeate the garments.

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

It provides exposure protection from liquid chemicals.

Page 3 of 5

21. In Step 4 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.

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

Placard

Four-digit ID number

Marking

Label

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

sample themselves to determine the contaminant.

notify law enforcement.

follow local procedures for emergency decontamination.

set up a decon zone.

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

downwind

upwind

opposite

inside

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

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.

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.

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

Responders should undergo decon.

Victims should be identified.

Victims should be instructed to disrobe.

Technical decon should be set up.

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

cellular

external

environmental

organ

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

delayed symptoms that include pulmonary edema and coughing up blood.

itching, scratching, and bloody skin lesions.

immediate symptoms such as coughing and throat irritations.

sudden gastrointestinal distress.

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

RIBC

Liquid

Nonbulk

FIBC

30. 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?

Cloud

Particulate

Hemispheric

Plume

Page 4 of 5

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

the IAP is effective.

the IC is no longer needed.

responders should withdraw immediately.

the incident is destabilizing.

32. 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.

is not effective in large or complex hazmat incidents.

can guide responders' actions at hazmat incidents.

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

Sorption

Resorption

Adsorption

Absorption

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

black, heat-absorbing paint.

large hemispherical heads on both ends.

multiple compartments.

large bulky double shelling and heavy insulation.

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

mechanical

chemical

thermal

radiological

36. 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 is the sudden failure of personal protective equipment or clothing.

Emergency decontamination includes the transfer of a hazardous material in greater than acceptable quantities.

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

Alarm sounding on a photoionization detector.

A sudden change in pressure

Black smoke

Consistent temperatures

38. 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.

Peculiar smells, visible vapor clouds, and radiant heat

The conversion of one substance to another

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

on-scene debriefing.

shelter in place.

progress reports.

evacuation.

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

Catalyst

Contamination

Fuel

Inhibitor

Page 5 of 5

41. 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

Four-digit ID number

Label

42. 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.

43. 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.

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

isolated.

destroyed.

kept away from victims.

decontaminated.

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

IDLH

APR

CPC

SCBA

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

Bacteria

Biological toxins

Rickettsias

Viruses

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

Orange

Yellow

Red

Green

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

High pressure

Nonpressure

Cryogenic

Low pressure

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

Atmospheres

psig

kPa

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

radioactivity, pressure, and temperature.

dispersion patterns, rapid release, and detonation.

wind speed, barometric pressure, and time of day.

energy release, corrosivity, and toxicity.

HAZWOPER Technician

Practice Exam

Quick Links

Useful Links