HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

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

Atmospheres

psig

kPa

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

FIBC

Nonbulk

RIBC

Liquid

3. A Level II incident:

will most likely not be concluded by any one agency.

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

does not require the use of chemical protective clothing.

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

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

variables to eliminate.

unavoidable risks.

potential site hazards.

potential ignition sources.

5. 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.

notify law enforcement.

set up a decon zone.

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

delayed symptoms that include pulmonary edema and coughing up blood.

immediate symptoms such as coughing and throat irritations.

itching, scratching, and bloody skin lesions.

sudden gastrointestinal distress.

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

EMS personnel will typically wear higher levels of respiratory protection.

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

EMS personnel must wear ballistic protection.

EMS PPE includes a sidearm.

8. 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

Plume

Hemispheric

9. 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.

10. 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

Page 2 of 5

11. 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.

12. 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

13. Decontamination usually takes place within the:

cold zone.

warm zone.

hot zone.

command zone.

14. 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.

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.

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

Level B

Level A

Level D

Level C

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

isolated.

kept away from victims.

decontaminated.

destroyed.

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

Green

Red

Yellow

Orange

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

The Table of Initial Isolation and Protective Action Distances

The ID Guide in the yellow-bordered pages

The Public Safety Section in the orange-bordered pages

The green highlighted sections of the blue-bordered pages

19. 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.

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

CPC

IDLH

APR

SCBA

Page 3 of 5

21. What type of incident requires unified command?

Level IV

Level I

Level III

Level II

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

Size-up becomes unnecessary

Effective command and control

Increased chaos on scene

Decreased accountability

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

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

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

thoroughly decontaminate them before transferring them to EMS.

apply first aid and return them to an ambulatory state.

package and triage them appropriately.

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

chemical degradation.

dilution.

brushing and scraping.

evaporation.

26. A highway vehicle without a placard:

is illegal.

will NOT be carrying hazardous materials.

should be stopped and inspected for terrorist activity.

may still be carrying hazardous materials.

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

Peculiar smells, visible vapor clouds, and radiant heat

Any erroneous or incomplete placarding or markings

The conversion of one substance to another

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

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

Consistent temperatures

Alarm sounding on a photoionization detector.

A sudden change in pressure

Black smoke

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

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.

Emergency decontamination should be considered at all hazmat incidents.

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

Cryogenic

Low pressure

Nonpressure

High pressure

Page 4 of 5

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

Catalyst

Contamination

Fuel

Inhibitor

32. One difference between Mexican and U.S. placard, label, and marking systems is that:

Mexico does not require placards for radioactive materials.

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 has several placards for materials that may be inhaled.

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

preincident planning.

safety checks.

hazard assessment.

size-up.

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

upwind

downwind

opposite

inside

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

all emergency services organizations.

fire and rescue operations.

civilian and emergency responder victims.

emergency responders entering the hot zone.

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

external

cellular

organ

environmental

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

shelter in place.

progress reports.

on-scene debriefing.

evacuation.

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

Victims should be instructed to disrobe.

Victims should be identified.

Responders should undergo decon.

Technical decon should be set up.

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

Marking

Placard

Four-digit ID number

Label

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

Incident Management System (IMS).

National Incident Management System (NIMS).

Memorandum of Understanding (MOU).

National Response Framework (NRF).

Page 5 of 5

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

oxygen

activation

autoignition

fuel

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

Release

Dispersion

Stress

Exposure

43. 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.

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

Biological toxins

Viruses

Bacteria

Rickettsias

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

wind speed, barometric pressure, and time of day.

dispersion patterns, rapid release, and detonation.

radioactivity, pressure, and temperature.

energy release, corrosivity, and toxicity.

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

preserve

identify

contain

destroy

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

chemical

mechanical

thermal

radiological

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

large hemispherical heads on both ends.

large bulky double shelling and heavy insulation.

multiple compartments.

black, heat-absorbing paint.

49. 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.

50. 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?