Chapter 3 Basic Knowledge of Explosions 3
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3. The conditions necessary for a combustible dust explosion are as follows; which of the following are correct? (Multiple choice) A. The dust itself must be explosive. B. It must be suspended in air and mixed with air to reach an explosive concentration. C. There must be a source of fire sufficient to trigger the dust explosion. D. The dust must be mixed with air to reach an explosive concentration. E. The air must contain a high level of moisture. Answer: ABC
A. Dust is explosive in itself. B. It floats in the air and mixes with air to reach an explosive concentration. C. There is a source of fire sufficient to trigger a dust explosion
3. The conditions necessary for a combustible dust explosion – which of the following are correct? (Multiple choice) A. The dust itself must be explosive. B. It must be suspended in air and mixed with air to reach an explosive concentration. C. There must be a source of fire strong enough to trigger the dust explosion. D. The dust must be mixed with air to reach an explosive concentration
A. Dust is explosive in itself. B. It floats in the air and mixes with air to reach an explosive concentration. C. There is a source of fire sufficient to trigger a dust explosion