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Weber, Hazardous Materials Technician Chapter 3
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Weber, Hazardous Materials Technician
Chapter 3: Toxicology
The classification of hazardous material whose mechanism interferes with breathing, oxygen transport within the body, or oxygen uptake in the cells is defined as a(n): (p. 61 )
Irritant
Convulsant
Asphyxiant
Sensitizer
Besides ingestion, which of the following is NOT a route of entry into the body for a hazardous material? (p.76 )
Injection
Inhalation
Absorption
Osmosis
An agent that when in contact with moisture produces hydrochloric acid in the respiratory tract creating a respiratory irritant: (p.63 )
Respiratory agent
Choking agent
Blood agent
Biological agent
Chemicals that interfere with the body’s ability to take in or utilize oxygen are classified as: (p. 63 )
Blood agents
Respiratory agents
Choking agents
Biological agents
Which statement about bacteria is NOT correct? (p.67 )
Bacteria are only single celled living organisms
Most bacteria are harmless to humans
Bacteria are living organisms that require a host to reproduce
The plague and anthrax are caused by bacteria
A naturally occurring toxin that is responsible for outbreaks of food poisoning due to improper production, canning, and storage of food that produces symptoms in about 4 to 6 hours describes what type of toxin? (p.68 )
Botulinum
Staphylococcus
Cytotoxin
Rickettsia
Which of the following types of radioactive materials is used in smoke detectors? (p.69 )
Cobalt (Co-60)
Tritium (H-3)
Americium (Am-241)
Cesium (Cs-137)
The largest form of ionizing radiation composed of two protons and two neutrons with a net charge of +2 describes ____________ radiation. (p.71 )
Alpha
Beta
Gamma
Neutron
The smallest form of ionizing radiation that possesses mass and a charge that is identical to an electron produced when a neutron spontaneously decays into a proton and an electron. (p. 72 )
Alpha
Beta
Gamma
Neutron
Radiation that is purely electromagnetic radiation that is without mass or charge. (p.72 )
Alpha
Beta
Gamma
Neutron
Which of the following methods allows you to be able to reduce your exposure to radiation to as low as reasonably achievable (ALARA)? (p.74 )
Increase the distance between you and the source of radiation
Decrease your exposure time to the source of radiation
Increase the shielding between you and source of radiation
All of above
Which of the following statements BEST describes an acute effect? (p.77 )
Acute effects occur over an extended period of time
Acute effects occur quickly upon exposure that can cause short- and long-term effects
Acute effects occur over long periods that cause short-term effects
None of above
A chemical below a specific level in which NO ill effects are seen or felt BEST describes: (p.77 )
Threshold effect
Potentiated effect
Latent effect
Delayed effect
The effects of a certain chemical by itself may be harmless, but when combined with another chemical can cause damage BEST describes: (p. 77 )
Lethal effect
Threshold effect
Potentiated effect
Latent effect
What statement BEST describes lethal concentration 50%? (p.78 )
The amount of a substance that kills half the test population by the route of inhalation
The amount of a substance that kills half the test population by the route of ingestion
The amount of a substance that kills half the test population by the route of absorption
All of above
Which of the following values represents an atmosphere that poses an immediate hazard to life or produces immediate, irreversible, debilitating effects on health? (p. 81 )
REL
PPM
IDLH
TWA
The maximum airborne concentration to which an average healthy person may be exposed ten hours a day, 40 hours a week BEST defines: (p.80 )
IDLH
TLV-TVA
REL
TLV-STEL
The maximum airborne concentration of a chemical that a healthy worker can be exposed to for eight hours a day, 40 hours a week, throughout their career without experiencing any permanent health problems describes: (p. 80 )
PEL
TLV-TWA
TLV-C
IDLH
Which of the following exposure values could be repeated a maximum of four times daily for 15 minutes with a 60-minute rest period between exposures for an 8-hour workday? (p.80 )
TLV-TWA
TLV-C
PEL
TLV-STEL
The airborne concentration of a chemical under which nearly all workers may be repeatedly exposed to without exhibiting adverse health effects describes: (p. 80)
TLV
PEL
REL
IDLH
Answer Key:
1. c
2. d
3. b
4. a
5. c
6. a
7. c
8. a
9. b
10. c
11. d
12. b
13. a
14. c
15. a
16. c
17. c
18. a
19. d
20. a
Weber, Hazardous Materials Technician ©2013 by Education, Inc.
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