HAZWOPER Technician

Practice Exam

Knowledge Check

Page 1 of 5

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

Nonpressure

High pressure

Low pressure

Cryogenic

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

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

The Table of Initial Isolation and Protective Action Distances

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

Effective command and control

Decreased accountability

Increased chaos on scene

Size-up becomes unnecessary

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

Sorption

Adsorption

Absorption

Resorption

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

Rickettsias

Biological toxins

Viruses

Bacteria

6. 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 B

Level C

7. 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.

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

SCBA

IDLH

CPC

APR

9. 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

Four-digit ID number

Marking

10. A Level II incident:

does not require the use of chemical protective clothing.

will most likely not be concluded by any one agency.

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

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

Page 2 of 5

11. 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).

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

Red

Green

Orange

Yellow

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

unavoidable risks.

potential site hazards.

potential ignition sources.

variables to eliminate.

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

fire and rescue operations.

emergency responders entering the hot zone.

all emergency services organizations.

civilian and emergency responder victims.

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

kPa

Atmospheres

psig

16. A highway vehicle without a placard:

should be stopped and inspected for terrorist activity.

may still be carrying hazardous materials.

is illegal.

will NOT be carrying hazardous materials.

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

Exposure

Stress

Dispersion

Release

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

EMS personnel must wear ballistic protection.

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

EMS PPE includes a sidearm.

EMS personnel will typically wear higher levels of respiratory protection.

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

Any erroneous or incomplete placarding or markings

The conversion of one substance to another

Peculiar smells, visible vapor clouds, and radiant heat

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

20. 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.

Page 3 of 5

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

Mexico does not require placards for radioactive materials.

Mexico has several placards for materials that may be inhaled.

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.

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

wind speed, barometric pressure, and time of day.

energy release, corrosivity, and toxicity.

radioactivity, pressure, and temperature.

dispersion patterns, rapid release, and detonation.

23. What type of incident requires unified command?

Level III

Level IV

Level II

Level I

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

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

It provides exposure protection from liquid chemicals.

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

Gases and vapors can permeate the garments.

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

oxygen

fuel

activation

autoignition

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

Emergency decontamination should be considered at all hazmat incidents.

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

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

dilution.

chemical degradation.

evaporation.

brushing and scraping.

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

Liquid

RIBC

Nonbulk

FIBC

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

destroyed.

isolated.

kept away from victims.

decontaminated.

30. 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

Label

Marking

Page 4 of 5

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

size-up.

hazard assessment.

preincident planning.

safety checks.

32. 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

Cloud

Hemispheric

Plume

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

contain

identify

preserve

destroy

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

Victims should be instructed to disrobe.

Responders should undergo decon.

Victims should be identified.

Technical decon should be set up.

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

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

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.

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

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

on-scene debriefing.

evacuation.

shelter in place.

progress reports.

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

environmental

organ

cellular

external

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

downwind

upwind

inside

opposite

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

notify law enforcement.

set up a decon zone.

follow local procedures for emergency decontamination.

sample themselves to determine the contaminant.

Page 5 of 5

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

the IC is no longer needed.

the IAP is effective.

the incident is destabilizing.

responders should withdraw immediately.

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

multiple compartments.

black, heat-absorbing paint.

large hemispherical heads on both ends.

large bulky double shelling and heavy insulation.

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

Catalyst

Inhibitor

Fuel

Contamination

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

package and triage them appropriately.

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.

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

itching, scratching, and bloody skin lesions.

delayed symptoms that include pulmonary edema and coughing up blood.

sudden gastrointestinal distress.

immediate symptoms such as coughing and throat irritations.

46. Decontamination usually takes place within the:

cold zone.

command zone.

hot zone.

warm zone.

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

Immediate hospitalization

Exposure justification

A leave of absence

Exposure records

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

Consistent temperatures

Black smoke

Alarm sounding on a photoionization detector.

A sudden change in pressure

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

thermal

chemical

radiological

mechanical

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