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Question 1 of 40
1. Question
Because the pH scale is logarithmic, for every change of one whole unit in pH, the hydrogen ion concentration:
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Question 2 of 40
2. Question
What is the infectious dose?
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Question 3 of 40
3. Question
Which method of infectious disease transmission involves inhalation?
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Question 4 of 40
4. Question
Residential smoke detectors, medical diagnostic imaging equipment, and soil density measurement tools may all be sources of:
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Question 5 of 40
5. Question
Which type of radiation is the most energetic and therefore the most hazardous to first responders?
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Question 6 of 40
6. Question
Knowing a material’s half-life(s) and decay path can help hazmat technicians determine:
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Question 7 of 40
7. Question
What do you call the number of disintegrations per second of a radioactive source?
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Question 8 of 40
8. Question
What do you use to detect radioactive contamination?
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Question 9 of 40
9. Question
It is important to conduct radiation monitoring at any incident where the presence of radioactive materials is confirmed or suspected because:
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Question 10 of 40
10. Question
How can a hazmat technician gauge the concentration of an acid or base?
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Question 11 of 40
11. Question
Which type of biological hazard is capable of independent growth and usually does not require a living host for replication?
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Question 12 of 40
12. Question
If a corrosive substance contacts a responder’s skin, how long will it continue to damage the skin?
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Question 13 of 40
13. Question
Incidents involving weapons of mass destruction (WMDs) are likely to be of large scope and very complex, meaning that hazmat technicians must:
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Question 14 of 40
14. Question
Responders typically stage _____ away from a suspected explosive material device.
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Question 15 of 40
15. Question
Which type of chemical warfare agent is chemically similar to organophosphate pesticides, but much stronger, meaning that exposure to even a minute quantity can kill quickly?
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Question 16 of 40
16. Question
Which type of chemical warfare agents are chemical asphyxiants and hemotoxins that interfere with the body’s ability to use oxygen?
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Question 17 of 40
17. Question
At an incident with a suspected release of a chemical warfare agent, multiple people are experiencing symptoms such as coughing, choking, and respiratory distress, which suggest a _____ agent
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Question 18 of 40
18. Question
What is a primary route of entry for riot control agents?
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Question 19 of 40
19. Question
What is a dirty bomb?
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Question 20 of 40
20. Question
Which type of radiological device is a nonexplosive device that requires putting the radioactive material into a powder or liquid form for dispersal?
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Question 21 of 40
21. Question
Organic peroxides can undergo chemical, sometimes violent changes if they reach:
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Question 22 of 40
22. Question
Chemical reactions, fires, explosions, and steam are all potential _____ hazards.
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Question 23 of 40
23. Question
What type of explosive is often used for propulsion because it has more of a “propelling” effect than a “shattering” effect?
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Question 24 of 40
24. Question
Remember that released heavier-than-air gases may:
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Question 25 of 40
25. Question
Flammable liquids produce:
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Question 26 of 40
26. Question
Hazmat technicians should assume that pyrophoric materials are also _____ until they have determined otherwise by checking at least three reference sources.
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Question 27 of 40
27. Question
When water-reactive materials are exposed to water, the reaction is always:
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Question 28 of 40
28. Question
The best course of action for large fires involving water-reactive materials is typically to isolate the area, protect exposures, and:
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Question 29 of 40
29. Question
What chemical process can be catalyzed by light?
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Question 30 of 40
30. Question
What tool or device is helpful in determining if a temperature-sensitive material may begin to decompose?
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Question 31 of 40
31. Question
What types of injuries can direct skin contact with cryogenic materials cause?
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Question 32 of 40
32. Question
Inorganic peroxides such as hydrogen peroxide can act as both an oxidizer and a(an):
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Question 33 of 40
33. Question
How are organic peroxides often shipped?
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Question 34 of 40
34. Question
When chlorates, perchlorates, and halogenated oxy salts decompose they:
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Question 35 of 40
35. Question
What does lethal concentration 50 measure?
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Question 36 of 40
36. Question
Devices that measure _____ measure materials that might enter your body via a means other than inhalation.
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Question 37 of 40
37. Question
Parts-per-million (ppm) and parts-per-billion (ppb) are both measures of:
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Question 38 of 40
38. Question
What is an exposure limit?
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Question 39 of 40
39. Question
Acute symptoms of chemical exposure include:
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Question 40 of 40
40. Question
When dealing with smoke at a house fire, respiratory protection and decontamination are important controls because potential routes of entry for smoke include inhalation and:
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