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Accident - Imperial Sugar Dust Explosion and Fire


Quiz Questions

1.On February 7, 2008, at about 7:15 p.m., a series of sugar dust explosions at the Imperial Sugar manufacturing facility in Port Wentworth, Georgia, resulted in __________ worker fatalities.
8
10
11
14
2. Imperial Sugar Company purchased the Port Wentworth facility from Savannah Foods and Industries, Inc. in December 1997. Imperial Sugar Company is a public company.
True
False
3. For many years, granulated sugar on these conveyors was exposed to possible contamination from debris that could fall onto the sugar. In ________, Imperial Sugar installed a stainless steel frame with top and side panels to fully enclose each belt assembly to protect the granulated sugar from falling debris and reduce the possibility of intentional contamination.
2004
2005
2006
2007
4. In 1924, R.V. Wheeler (Wheeler, 1924) divided combustible dusts into __________ classes based on ignitability and relative burn rates.
Two
Three
Four
Five
5. Accumulations of combustible dust on horizontal surfaces in the work area are a serious fire hazard because they can ignite and burn. However, dust on horizontal surfaces will not explosively ignite, even when it has accumulated to a depth of an inch or more.
True
False
6. The _________ concluded that as granulated sugar spilled off the moving steel conveyor at the blocked outlet, sugar dust accumulated above the MEC inside the enclosed conveyor, and then ignited.
OSHA
EPA
CSB
None of the above
7.Imperial Sugar didn’t had policies and procedures to control open flames.
True
False
8. Which of the following is ruled out as not the ignition source of the primary dust explosion?
Electric spark ignition
Hot surface ignition
Friction sparks
All of the above
9. The company had posted emergency evacuation routes and also provided work location specific evacuation training to all employees and contractors and conducted evacuation drills.
True
False
10.

The powdered sugar and cornstarch process equipment dust collection system used _________ collectors.

Dry dust
Wet dust
Mesh
Bag
11.

Workers told the CSB investigators that occasionally, __________ occurred in the packing buildings when sugar or packaging material was ignited by a hot electrical device or overheated bearing.

Dust storms
Small fires
Sugar leakage
Electric sparks
12. In April 2009, 14 months after the Imperial Sugar incident, _________ announced it intends to initiate rulemaking on a general industry combustible dust standard.
OSHA
PET
ETA
Georgia Fire Protection Agency
13. Founded in 1919, _____________ provides independent inspections, audits, and training to food processing, distribution, and retail industries worldwide.
OSHA
ETA
AIB International
NFPA
14. Which of the following is not a likely cause for the explosion?
An overheated bearing in the steel belt conveyor most likely ignited a primary dust explosion
The 14 fatalities were most likely the result of the secondary explosions and fires.
Workers smoking area is very close to the dust accumulators which cause ignition
Sugar and cornstarch conveying equipment was not designed or maintained to minimize the release of sugar and sugar dust into the work area.
15. Which of the following association gave recommendations after the Incident?
AIB International
Zurich Services Corporation
Risk Insurance Management Society, Inc.
All of the above