Term
| Why is it important to prevent a person with burning clothing from running? |
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Definition
1) To prevent fanning of flames
2) To prevent inhalation of flames |
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Term
| What is the best course of action when chemicals are spilled over a large area of a person? |
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Definition
| 1) Remove contaminated clothing under safety shower |
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Term
| What is the best way to prevent flammable vapors from accumulating? |
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Definition
| 1) Storage in proper safety cans and adequate ventilation by working in an exhaust hood |
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Term
| If a safety shower is not nearby and a fire blanket is not advised, how does one help a person with burning clothing? |
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Definition
| 1) Push the person down and roll him / her over to extinguish the flames |
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Term
| Why should you not use a solvent (other than water) to remove chemicals from your skin? |
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Definition
| 1) Except for water almost all of the solvents used in lab are flammable; they may increase the rate of absorption of chemicals through the skin or solvent itself may be harmful to skin |
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Term
| A very small fire in a beaker or a flask could possibly be put out by simply covering the vessel with a flat object. Why is this possible? |
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Definition
| 1) You are cutting off the supply of oxygen or air to the fire |
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Term
| How should a fire extinguisher be directed when trying to put out a fire? |
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Definition
| 1) At the base of the fire |
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Term
| List two detriments of working in a hood that is cluttered with chemicals. |
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Definition
1) You will not achieve good air flow
2) You will not have adequate room to perform the experiment |
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Term
| Provide three advantages of using a laboratory hood when working with toxic and flammable substances |
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Definition
1) Draws off toxic and flammable fumes
2) Provides a physical barrier on all fours sides of a reacting system when the sash is pulled down
3) Chemical spills are contained in the hood |
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Term
| What is the best course of action to help someone with burning clothing? |
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Definition
| 1) Remove contaminated clothing under safety shower |
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Term
| Why is a fire blanket not advisable to wrap someone while his / her clothing is burning? |
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Definition
| 1) The blanket does not cool and smoldering continues |
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Term
| What is the best course of action and for how long should you carry it out when a chemical gets into one's eyes? |
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Definition
| 1) Flush eye with large amount of water for 15 minutes |
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Term
| Why is it dangerous to wear contact lenses in the laboratory? |
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Definition
| 1) Solvent fums can fuse into the contact lenses of one's eyes |
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