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Hazmat > Chapter 4 > Flashcards

Chapter 4 Flashcards

1
Q

Which of the following statements about a hazardous materials state
of matter is MOST accurate? (137)
A. In general, liquids have the greatest mobility.
B. A gas may change to a liquid if the temperature increases.
C. The ERG provides isolation distances only for materials in
gaseous form.
D. The behavior of different states of matter can determine what
exposures are affected

A

D

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2
Q 
Incidents involving \_\_\_\_\_ are potentially the most dangerous for 
emergency responders. (140)
A. solids
B. gases
C. liquids
D. frozen substances
A

B

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3
Q

Which of the following statements about gases is MOST accurate?
(140)
A. Gases do not present a breathing/inhalation hazard.
B. It is quite easy to contain gases for mitigation purposes.
C. It is easiest and safest to detect gases by sense of smell.
D. Gases have an undefined shape and keep expanding if
uncontained

A

D

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4
Q

What BEST describes compressed gas? (140)
A. Gas that has expanded upon release and escaped mitigation
B. Confined gas that at normal temperatures exists in both liquid
and gaseous states
C. Any gas that is kept at pressures and/or temperatures higher
than ambient conditions
D. Gas that, at normal temperature, exists solely as a gas when
pressurized in a container

A

D

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5
Q 
The conversion of a liquid to vapor: (142)
A. makes it easier to detect.
B. makes it easier to contain.
C. increases the material’s mobility.
D. decreases the material’s mobility
A

C

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6
Q

Which of the following statements about solids is MOST accurate?
(143)
A. The process of sublimation is rapid and violent.
B. The particle size of solids may influence their behavior.
C. Solids tend to be very mobile unless acted upon by exterior
forces.
D. Unlike liquids and vaporous liquids, solids do not have inhalation
hazards

A

B

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7
Q 
What is the unit most typically used to express particle size? (144)
A. Bar
B. Inch
C. Micron
D. Centimeter
A

C

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8
Q 
Sublimation occurs when a material transitions directly from a: (144)
A. solid to a gas.
B. gas to a solid.
C. gas to a liquid.
D. solid to a liquid
A

A

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9
Q 
What is the pressure exerted by a saturated vapor above its own 
liquid in a closed container? (145)
A. Vapor density
B. Specific gravity
C. Vapor pressure
D. Solubility/miscibility
A

C

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10
Q 
Materials with a vapor pressure over \_\_\_\_\_ mmHg will be gases 
under normal conditions. (145)
A. 7
B. 76
C. 760
D. 7600
A

C

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11
Q 
Liquid changes to a gas at the \_\_\_\_\_ point. (146)
A. flash
B. boiling
C. freezing
D. sublimation
A

B

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12
Q 
A boiling liquid expanding vapor explosion (BLEVE) is caused by: 
(147)
A. sublimation of a boiling liquid.
B. application of a pressure stream.
C. a heated liquid or gas expanding.
D. inadequate internal vessel pressure
A

C

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13
Q 
Gases with a vapor density of \_\_\_\_\_ will rise quickly and spread to a 
wide geographical area. (148)
A. one
B. less than one
C. more than one
D. one through five
A

B

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14
Q 
Where are you MOST likely to find gases or vapors with vapor 
density greater than one? (149)
A. Attics
B. Trenches
C. Near the ceiling
D. Flat open spaces
A

B

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15
Q

Partially water-soluble chemicals will penetrate into the lower
respiratory system and cause: (149)
A. sudden gastrointestinal distress.
B. itching, scratching, and bloody skin lesions.
C. immediate symptoms such as coughing and throat irritations.
D. delayed symptoms that include pulmonary edema and coughing
up blood

A

D

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16
Q 
Most flammable liquids will float on water because they have: (151)
A. high solubility.
B. high miscibility.
C. specific gravities less than one.
D. specific gravities greater than one
A

C

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17
Q 
Viscosity determines the ease with which a product will flow and is 
greatly affected by: (152)
A. sublimation.
B. temperature.
C. specific gravity.
D. appearance and odor
A

B

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18
Q 
The concentration (in air) at which the “average person” can smell a 
particular compound is the: (154)
A. solubility.
B. vapor density.
C. odor threshold.
D. vapor pressure
A

C

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19
Q 
The way a substance behaves and interacts at the molecular level 
are: (154)
A. physical properties.
B. chemical properties.
C. biological properties.
D. radiologic properties
A

B

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20
Q

Flash point, autoignition temperature, and flammable range are
properties related to a material’s: (154)
A. reactivity.
B. corrosivity.
C. flammability.
D. radioactivity

A

C

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21
Q

The temperature at which a liquid or volatile substance gives off
enough vapors to support continuous burning is its: (154)
A. fire point.
B. flash point.
C. flammable range.
D. autoignition temperature

A

A

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22
Q 
Flammable gases have: (154)
A. no flash point.
B. higher fire points.
C. very low flash points.
D. no autoignition temperature
A

A

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23
Q

The lowest concentration (or lowest percentage of the substance in
the air) that will produce a flash of fire when an ignition source is
present is the: (156)
A. LLL (lower liability limit).
B. LFL (lower flammable limit).
C. UEL (upper explosive limit).
D. UFL (upper flammable limit)

A

B

24
Q

A fuel that has moved beyond its upper flammable limit will: (156)
A. be too rich to burn.
B. flash if exposed to an ignition source.
C. immediately reach its autoignition temperature.
D. reach the correct ratio of fuel to oxygen to sustain combustion

A

A

25
Q 
The chemical property used to describe substances that destroy 
living tissue is: (157)
A. reactivity.
B. corrosivity.
C. flammability.
D. radioactivity
A

B

26
Q 
What type of materials break down fatty skin tissues and can 
penetrate deeply into the body? (157)
A. Acids
B. Bases
C. Gases
D. Vapors
A

B

27
Q 
The reactivity triangle has three components: an oxidizing agent, a 
reducing agent, and a(an): (159)
A. solubility.
B. flash point.
C. reactivity point.
D. activation energy
A

D

28
Q 
The reducing agent in the fire tetrahedron acts as the \_\_\_\_\_ source 
for the reaction. (159)
A. fuel
B. oxygen
C. activation
D. autoignition
A

A

29
Q

What will increase the rate of polymerization and decrease the
activation energy necessary for further polymerization? (161)
A. Fuel
B. Catalyst
C. Inhibitor
D. Contamination

A

B

30
Q 
The most energetic and hazardous forms of radiation are: (163)
A. ionizing.
B. nonionizing.
C. visible light.
D. electromagnetic
A

A

31
Q

Which type of radiation can be reduced or stopped by a layer of
clothing, a thin sheet of metal, or a thick Plexiglass? (165)
A. Alpha
B. Beta
C. Gamma
D. Neutron

A

B

32
Q 
Which type of ionizing radiation consists of high-energy photons? 
(165)
A. Alpha
B. Beta
C. Gamma
D. Neutron
A

C

33
Q

Which of the following statements about radiation is MOST accurate?
(166)
A. Exposure to radiation will make a person radioactive.
B. Exposure to any amount of radiation will cause radiation
sickness.
C. Radioactive contamination occurs when radiation passes
through people or things.
D. Damage is often described in terms of dosage, indicating the
amount of energy absorbed by matter

A

D

34
Q 
The damaging effects of ionizing radiation occur at the \_\_\_\_\_ level. 
(167)
A. organ
B. cellular
C. external
D. environmental
A

B

35
Q

Which of the following statements about radiation dose is MOST
accurate? (167)
A. Lethal doses of radiation are commonly encountered.
B. Exposure to radiation received in a short period of time is a
chronic dose.
C. Small amounts of radiation received over a long period of time
is a chronic dose.
D. The body is better equipped to handle an acute dose of
radiation than a chronic dose

A

C

36
Q

Which of the following statements about radiation dose is MOST
accurate? (167)
A. Lethal doses of radiation are commonly encountered.
B. Exposure to radiation received in a short period of time is a
chronic dose.
C. Small amounts of radiation received over a long period of time
is a chronic dose.
D. The body is better equipped to handle an acute dose of
radiation than a chronic dose

A

A

37
Q 
Asphyxiants, irritants, convulsants, and carcinogens are types of: 
(172-173)
A. toxics.
B. radiation.
C. polymers.
D. corrosives
A

A

38
Q 
Which type of biological/etiological hazard spreads mostly through 
the bite of infected arthropods? (176)
A. Viruses
B. Bacteria
C. Rickettsias
D. Biological toxins
A

C

39
Q 
Most diseases are spread via contact with: (177)
A. toxicity.
B. rickettsias.
C. body fluids.
D. radioactive substances
A

C

40
Q

Which class of hazards is characterized by thermal and mechanical
hazards in the form of blast pressure waves, shrapnel and
fragmentation, and incendiary thermal effects? (179-181)
A. Class 1
B. Class 2
C. Class 3
D. Class

A

A

41
Q 
Cryogens and their accompanying cold hazards belong to which 
hazard class? (182)
A. 1.2
B. 2.1
C. 2.2
D. 3.2
A

C

42
Q 
Most hazmat incidents, such as gasoline and diesel fuel spills, involve 
which type of hazard class? (183)
A. Class 3
B. Class 4
C. Class 5
D. Class 6
A

A

43
Q 
In addition to burning, all flammable and combustible liquids exhibit 
varying degrees of: (183)
A. toxicity.
B. infectivity.
C. corrosivity.
D. fragmentation
A

A

44
Q

“Spontaneously Combustible Materials” and “Dangerous When Wet”
are divisions of which hazard class? (186)
A. Class 3
B. Class 4
C. Class 5
D. Class 6

A

B

45
Q

Which statement about oxidizers is MOST accurate? (189)
A. They cannot burn without air being present.
B. They vigorously support combustion and may be explosive.
C. They may produce hydrogen gas when in contact with metal.
D. Although they support combustion, they are not an explosive
hazards

A

B

46
Q 
Organic peroxides are both an oxidizer and a fuel, making them very: 
(189)
A. stable.
B. reactive.
C. corrosive.
D. radioactive
A

B

47
Q 
Poisonous materials are known to be \_\_\_\_\_ to humans. (192)
A. toxic
B. corrosive
C. infectious
D. not dangerous
A

A

48
Q 
Biohazards such as infectious substances are part of which hazardous 
class? (192)
A. Class 3
B. Class 4
C. Class 5
D. Class 6
A

D

49
Q

Class 7 placards may come in white or yellow, and they bear the
unique trefoil symbol for: (194)
A. radiation.
B. explosives.
C. infectious diseases or biohazards.
D. oxidizing substances or organic peroxides

A

A

50
Q

Class 8 hazards are either a liquid or solid that cause full thickness
destruction of human skin at the site of contact because they are:
(196)
A. toxic.
B. explosive.
C. corrosive.
D. radioactive

A

C

51
Q

Miscellaneous hazardous materials such as elevated temperature
material or marine pollutants go in what Hazard Class? (198)
A. Class 6
B. Class 7
C. Class 8
D. Class 9

A

D

52
Q

Which statement about gathering information during a hazmat
incident is MOST accurate? (199)
A. Shipping papers are the last resort in a hazmat incident.
B. First responders should use a variety of sources to gather
information.
C. The ERG should contain all the information that a first
responder needs.
D. At a highway incident, the driver of the vehicle will have the
most up-to-date information

A

B

53
Q 
Overhead power lines, highway traffic, and rail lines are examples of: 
(200)
A. unavoidable risks.
B. variables to eliminate.
C. potential site hazards.
D. potential ignition sources
A

C

54
Q 
Static electricity, internal combustion engines, and heated surfaces 
are examples of: (200)
A. unavoidable risks.
B. variables to eliminate.
C. potential site hazards.
D. potential ignition sources
A

D

55
Q

When is topography a factor in hazmat incidents? (203)
A. In both rural and developed environments
B. Only if there are very tall buildings nearby
C. Topography is not a factor in hazmat incidents
D. Only if the incident is near a state or federal park or preserve

A

A

56
Q

Which service will an emergency response center provide for first
responders? (204)
A. Establish a command structure.
B. Notify local emergency services.
C. Deploy the shipper or manufacturer to the site.
D. Provide immediate technical assistance to the caller

A

D

Hazmat (18 decks)

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