In the development of incident timeline time
Questions
1. In the development of an incident timeline a time that is based on calculations that may or may not be relative to other incident events is called:
a hard time.
a relative time.
an estimated time.
a benchmark time.
2. In the NIST study of the Station Nightclub fire what event was selected as the first benchmark in the development of the incident timeline?
The arrival of the fire department
The ignition of the foam wall covering
The activation of the building fire alarm
The beginning of the band performance
3. The bench scale tests of the pyrotechnic "Gerbs" conducted by NIST in the Station Nightclub experiments were designed to determine the :
the heat release rate of the devices.
the thermodynamic properties of the devices.
competency of the device as a ignition source.
the ability to ignite secondary fuels in the area of origin.
4. Which of the following is NOT a critical data element required for the fire modeling of the Station Nightclub fire?
Materials and contents
Structural dimensions
Weather conditions
Ventilation sources
5. The full scale physical modeling conducted by NIST as part of the Station Nightclub investigation was conducted to:
test ignition scenario hypothesis.
determine the point of fire origin.
provide data for subsequent computer modeling.
provide benchmark events for the incident timeline.
6. The NIST full scale fire experiment represented what portion of the actual Station Nightclub?
20 to 25 percent
45 to 50 percent
approximately 70 percent
100 percent
7. In the NIST un-sprinklered full scale experiment the temperature begins to decrease at approximately 80 seconds after ignition due to:
Fuel limited
Ventilation limited (oxygen depletion)
Fire suppression by fire fighters
Excessive heat loss to walls
8. Fire tests indicate that the polyurethane foam in the Station Nightclub fire:
contributed to the rapid initial fire growth.
was consumed before contributing to the fire growth
Self extinguished when the ignition source was removed
provided a substantial amount of the energy released during the fire.
9. What were the findings of the NIST experiments where Gerbs were directed at samples of wood paneling?
No ignition observed
Rapid ignition and free burning
Ignition and free burning after impingement stopped
Burning observed only while impingement was taking place
10. In the NIST un-sprinklered full scale experiment what was the temperature at the ceiling level 6 feet in front of the platform in approximately 50 seconds?
50°C
100°C
600°C
800°C
11. In the NIST full scale experiments a space was considered untenable when the temperature at 1.5 meters (5 feet) above the floor reached:
60°C (140°F)
100°C (212°F)
120°C (250°F)
200°C (400°F)
12. In the NIST un-sprinklered full scale experiment the event that caused conditions on the dance floor to rapidly deteriorate was the:
ignition of the foam insulation.
flashover of the drummers alcove.
opening of the side entrance behind the stage.
formation of a ceiling jet below the dance floor ceiling.
13. During a fire investigation the fire investigator should document a structure beyond the area of origin to include all door and window openings when:
the fire results in significant damage
there are egress issues related to incident
there is an indication of full room involvement
it is anticipated that fire modeling may be required
14. Collecting and preserving samples of unburned interior and other significant fuel packages will:
not provide useful data from bench scale testing
assist in the characterization of fuels for fire models
assist in the determination of the use of accelerants
provide useful information and data for fire modeling only
15. What tool was used by NIST to help to fill in critical details related to fire growth and the impact of the fire on occupants of the Station Fire incident?
bench scale tests
Computer simulation
Timeline development
First person interviews
16. The numerical tool used by NIST to determine the generation and movement of fire gases in the Station Nightclub investigation was:
FPETool.
Smoke View.
The NIST Fire Dynamics Simulator.
Bench scale testing of interior finish materials.
17. A CDF (computational fluid dynamics) model is what type of simulation tool?
A field model
A Zone model
A full scale simulator
A bench scale simulator
18. The comparison between the computational model and the available video footage of the fire indicates a variance at approximately 250 seconds into the fire. What was the cause of this variance?
The availability of additional fuel in the compartment of origin
Higher than calculated temperatures in the compartment of origin
The transition from a compartment fire to a fully involved structure
The availability of additional oxygen when the fire vented through the roof
19. Why is it important to document the specific configuration of a fuel during a scene examination?
Thermal conductivity may vary based on configuration
Flame spread may vary greatly for different configurations
The ignitability of a material may vary based on configuration
The availability of oxygen will vary for different configurations
20. Full scale fire experiments were conducted by NIST as part of the Station Nightclub investigation were designed to:
scale up the bench scale experiments conducted at NIST.
evaluate the capacity of the egress system under fire conditions.
reconstruct the thermal environment that occurred during the fire.
model the conditions occurring in each portion of the building during the fire.