HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

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

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

EMS PPE includes a sidearm.

EMS personnel must wear ballistic protection.

EMS personnel will typically wear higher levels of respiratory protection.

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

Immediate hospitalization

Exposure records

Exposure justification

A leave of absence

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

The ID Guide in the yellow-bordered pages

The Table of Initial Isolation and Protective Action Distances

The Public Safety Section in the orange-bordered pages

The green highlighted sections of the blue-bordered pages

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

Resorption

Sorption

Adsorption

Absorption

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

unavoidable risks.

potential ignition sources.

variables to eliminate.

potential site hazards.

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

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

apply first aid and return them to an ambulatory state.

package and triage them appropriately.

thoroughly decontaminate them before transferring them to EMS.

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

isolated.

kept away from victims.

destroyed.

decontaminated.

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

Rickettsias

Biological toxins

Bacteria

Viruses

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

Page 2 of 5

11. 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.

12. 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 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.

13. 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.

14. 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

Label

Four-digit ID number

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

Processes that do NOT change the elemental composition of materials involved.

Peculiar smells, visible vapor clouds, and radiant heat

Any erroneous or incomplete placarding or markings

The conversion of one substance to another

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

kPa

Atmospheres

psig

17. 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.

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

Size-up becomes unnecessary

Increased chaos on scene

Effective command and control

Decreased accountability

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

A sudden change in pressure

Alarm sounding on a photoionization detector.

Black smoke

Consistent temperatures

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

SCBA

IDLH

APR

CPC

Page 3 of 5

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

Catalyst

Contamination

Inhibitor

Fuel

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

opposite

inside

upwind

downwind

23. 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?

Particulate

Plume

Cloud

Hemispheric

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

organ

cellular

external

environmental

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

the incident is destabilizing.

responders should withdraw immediately.

the IC is no longer needed.

the IAP is effective.

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

destroy

preserve

contain

identify

27. 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.

temperature and wind conditions.

the urgency in removing the victim from the contaminated environment.

how much media coverage is involved.

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. Decontamination usually takes place within the:

warm zone.

cold zone.

command zone.

hot zone.

30. 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.

Page 4 of 5

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

shelter in place.

progress reports.

evacuation.

on-scene debriefing.

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

mechanical

thermal

chemical

radiological

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

size-up.

hazard assessment.

safety checks.

preincident planning.

34. 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.

35. 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 Response Framework (NRF).

National Incident Management System (NIMS).

36. 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.

will most likely not be concluded by any one agency.

does not require the use of chemical protective clothing.

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

activation

fuel

autoignition

oxygen

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

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.

It provides exposure protection from liquid chemicals.

39. 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 D

Level A

Level B

40. In Step 4 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.

Page 5 of 5

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

RIBC

FIBC

Liquid

Nonbulk

42. 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.

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

Mexico does not require placards for radioactive materials.

Mexico has several placards for materials that may be inhaled.

43. A highway vehicle without a placard:

may still be carrying hazardous materials.

should be stopped and inspected for terrorist activity.

is illegal.

will NOT be carrying hazardous materials.

44. What type of incident requires unified command?

Level IV

Level III

Level II

Level I

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

can guide responders' actions at hazmat incidents.

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.

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

civilian and emergency responder victims.

emergency responders entering the hot zone.

fire and rescue operations.

all emergency services organizations.

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

Label

Marking

Four-digit ID number

Placard

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

Stress

Release

Dispersion

Exposure

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

Orange

Yellow

Green

Red

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

follow local procedures for emergency decontamination.

sample themselves to determine the contaminant.

set up a decon zone.

notify law enforcement.

HAZWOPER Technician

Practice Exam

Quick Links

Useful Links