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Hazmat Tech > Chapter 10 Implementing Response Objectives > Flashcards

Chapter 10 Implementing Response Objectives Flashcards

1
Q

What is the most commonly encountered hazardous material that responders will have to control?
A) Flammable solids
B) Flammable gases
C) Flammable liquids
D) Flammable dusts

A

C) Flammable liquids

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2
Q

A large flammable liquid fire normally allows _____ to gather the necessary resources before mounting an aggressive, offensive-oriented fire attack.
A) Speed
B) Time
C) Manpower
D) Location

A

B) Time

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3
Q

Which of the following situations involving a flammable liquid emergency justifies the nonintervention option?
A) Sufficient water supply
B) Exposures in the area
C) Very little product remaining
D) Direct flame impingement

A

C) Very little product remaining

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4
Q

With flame impingement on a storage tank, what must be accomplished immediately?
A) Cooling
B) Transfer
C) Shielding
D) Freezing

A

A) Cooling

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5
Q

Where should water streams be directed to cool the surface of a storage tank in order to help maintain its integrity?
A) Below the liquid level
B) At the ends of the container
C) Above the liquid level
D) At the liquid level

A

C) Above the liquid level?

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6
Q

According to NFPA 11 Technical Standard on Low Expansion Foam and Combination Agents, what is the recommended application time for a flammable liquid spill fire?
A) 10 minutes
B) 15 minutes
C) 65 minutes
D) 30 Minutes

A

B) 15 minutes

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7
Q

Firefighting foam concentrates should be selected based on the type and nature of the hazard to be protected and the type of ________.
A) fuel
B) personnel
C) location
D) environment

A

A) fuel

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8
Q

Which of the following Class B foam concentrates has fuel-shedding properties and is suitable for subsurface injection?
A) Fluoroprotein
B) Aqueous film-forming foam
C) Alcohol-resistant AFFF
D) Film-forming fluoroprotein foam

A

B) Aqueous film-forming foam

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9
Q

Which of the following Class B foam concentrates is available in 1% concentrate?
A) Fluoroprotein
B) Aqueous film-forming foam
C) Alcohol-resistant AFFF
D) Film-forming fluoroprotein foam

A

B) Aqueous film-forming foam

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10
Q

To what agent can fluoroprotein foam be simultaneously applied as a key characteristic?
A) Purple K
B) Halon
C) CO 2
D) AFFF

A

D) AFFF

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11
Q

Which of the following Class B foams creates a thin film and is an effective agent in rapidly knocking down and extinguishing a spill fire?
A) Fluoroprotein
B) Aqueous film-forming foam
C) Alcohol-resistant AFFF
D) Film-forming fluoroprotein foam

A

D) Film-forming fluoroprotein foam

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12
Q

Which of the following Class B foams should be used when ethanol is the known material involved?
A) Fluoroprotein
B) Aqueous film-forming foam
C) Alcohol-resistant AFFF
D) Film-forming fluoroprotein foam

A

C) Alcohol-resistant AFFF

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13
Q

Which of the following Class B foams should be applied slowly to allow a polymeric membrane to form off the hazardous material?
A) Fluoroprotein
B) Aqueous film-forming foam
C) Alcohol-resistant AFFF
D) Film-forming fluoroprotein foam

A

C) Alcohol-resistant AFFF

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14
Q

Which of the following Class B foams is also available in an alcohol-resistant formulation?
A) Fluoroprotein
B) Aqueous film-forming foam
C) Alcohol-resistant AFFF
D) Film-forming fluoroprotein foam

A

D) Film-forming fluoroprotein foam

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15
Q

Hazard and risk evaluation is essential to the safety of responders and effectiveness of the response based on all of the following factors of evaluation at a flammable gas emergency EXCEPT:
A) Design and construction of the container.
B) Type of stress on container.
C) Size and type of area affected by fire.
D) Distance to nearest fire station.

A

D) Distance to nearest fire station.

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16
Q

Which of the following tactical options would be the best choice if a BLEVE is imminent?
A) Offensive
B) Defensive
C) Nonintervention
D) Command

A

C) Nonintervention

17
Q

Which of the following tactical options involves protecting exposures and allowing the fire to burn?
A) Offensive
B) Defensive
C) Nonintervention
D) Command

A

B) Defensive

18
Q

Which of the following tactical options is best when sufficiently cooled water and related resources are available?
A) Offensive
B) Defensive
C) Nonintervention
D) Command

A

A) Offensive

19
Q

When should the IC evaluate potential BLEVE situations in order to take immediate action to activate fixed water spray systems, monitor nozzles provide cooling streams, and evacuate the area?
A) Prior to dispatch
B) Early in the fire stage
C) After dispatch
D) After 20 minutes on scene

A

B) Early in the fire stage

20
Q

Liquefied natural gas has two primary hazards: flammability and _________, due to its expansion ratio.
A) temperature
B) storage capacity
C) vapor dispersion
D) safety record

A

C) vapor dispersion

21
Q

What can be used as an indicator for the flammable region of liquefied natural gas when spilled?
A) Natural buoyancy
B) White cloud
C) Boiling liquid
D) Cooling ground surface

A

A) Natural buoyancy

22
Q

What is the expansion ratio of liquefied natural gas at 1 atmosphere when warmed to room temperature?
A) 300 to 1
B) 500 to 1
C) 600 to 1
D) 800 to 1

A

C) 600 to 1

23
Q

Heat leaking from liquefied natural gas within the container causes the liquid to boil. Removal of the boiled off gases helps maintain the gas in its liquid state and is called the
_______ phenomenon.
A) condensation
B) sublimation
C) polymerization
D) autorefrigeration

A

D) autorefrigeration

24
Q

Liquefied natural gas presents emergency responders with three general tactical problems. Which of the following is NOT one the tactical problems?
A) Fire
B) Vapor cloud release
C) Cryogenic spill
D) Liquid pooling

A

D) Liquid pooling

25
Q

Which of the following liquefied natural gas fire risk scenarios involves pooling of liquid that allows vapors to be ignited and travel back to the origin of the spill?
A) Pool fire
B) Jet fire
C) Vapor cloud fire
D) Cryogenic spill

A

A) Pool fire

26
Q

Which of the following liquefied natural gas fire risk scenarios involves a release of compressed gas from a storage tank or pipeline with vapor discharging through a hole in the container?
A) Pool fire
B) Jet fire
C) Vapor cloud fire
D) Cryogenic spill

A

B) Jet fire

27
Q

For which of the following tank truck would you NOT use a liquid transfer such as gravity flow, pump transfers, or a pressure transfer?
A) MC-306
B) MC-331
C) MC-312
D) MC-307

A

B) MC-331

28
Q

Which of the following cargo tank trucks uses pumps, compressors, and pressure differential?
A) MC-306
B) MC-338
C) MC-312
D) MC-307

A

B) MC-338

29
Q

When conducting vehicle uprighting, there are two safety considerations for approving lifting. One is using a qualified and experienced rigging specialist while the other is _______.
A) conducting a damage assessment
B) care for the truck driver
C) traffic patterns on highways
D) number of responders

A

A) conducting a damage assessment

Hazmat Tech (14 decks)

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