Laboratory Safety Procedures Quiz
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Questions and Answers

What should be done immediately after cleaning a chemical spill?

  • Leave the area to ventilate.
  • Wash hands before resuming work. (correct)
  • Notify a supervisor and document the incident.
  • Wear gloves and goggles while cleaning.
  • Which of the following actions is NOT recommended for fires in the laboratory?

  • Keep calm and go to the nearest fire exit during a building fire.
  • Pour water over oil fires. (correct)
  • Push burning paper into the laboratory sink.
  • Use wet towels to smother a small fire.
  • What is the appropriate first aid measure for a fresh wound?

  • Apply a topical antibiotic ointment immediately.
  • Use rubbing alcohol to clean the wound.
  • Cover the wound with sterile gauze and apply tincture of iodine. (correct)
  • Leave the wound exposed to air for better healing.
  • What is a key practice to maintain a safe laboratory work environment?

    <p>Wear personal protective equipment at all times.</p> Signup and view all the answers

    What should be applied to the skin in case of an alkali burn?

    <p>Use running water and a saturated solution of NaHCO3 for 20 minutes.</p> Signup and view all the answers

    Which of the following is an appropriate response for eye irritation caused by chemicals?

    <p>Use tap water to rinse the eyes thoroughly.</p> Signup and view all the answers

    If someone has fainted in the laboratory, what should be done?

    <p>Loosen tight clothing and allow them to rest on the floor.</p> Signup and view all the answers

    What is a NON-essential responsibility when conducting experiments in the laboratory?

    <p>Mouth pipetting liquid samples.</p> Signup and view all the answers

    Which piece of Personal Protective Equipment (PPE) is specifically used to protect the eyes from chemical splashes?

    <p>Goggles</p> Signup and view all the answers

    What is the safest method to respond immediately to a chemical spill on the skin?

    <p>Use a safety shower</p> Signup and view all the answers

    Which action is NOT recommended when attending to chemical exposure in the eyes?

    <p>Use soap to clean the eyes immediately</p> Signup and view all the answers

    What is the primary purpose of wearing gloves in a laboratory setting?

    <p>To protect hands from chemical exposure</p> Signup and view all the answers

    When using a fire extinguisher, what does the 'A' in P.A.S.S. stand for?

    <p>Aim the hose at the base of the fire</p> Signup and view all the answers

    What should you do if you have long hair while working in a laboratory?

    <p>Tie it back to prevent accidents</p> Signup and view all the answers

    Which of the following actions is prohibited in the laboratory at all times?

    <p>Eating and drinking</p> Signup and view all the answers

    In the event of a fire, what is the recommended distance from which to operate a fire extinguisher?

    <p>5 to 6 feet</p> Signup and view all the answers

    What is the primary use of a fume hood in a laboratory setting?

    <p>To limit exposure to hazardous fumes</p> Signup and view all the answers

    Which of the following tools is employed for maintaining laboratory cleanliness?

    <p>Test tube brush</p> Signup and view all the answers

    In the event of a chemical spill, which device would be most appropriate to handle hazardous liquids?

    <p>Evaporating dish</p> Signup and view all the answers

    Which personal protective equipment is essential when using a wash bottle?

    <p>Gloves to prevent skin exposure</p> Signup and view all the answers

    What should never be done with a wash bottle in the laboratory?

    <p>Use for skin emergencies</p> Signup and view all the answers

    Study Notes

    Laboratory Safety and Emergency Procedures

    • "Chimney effect" can directly expose students to fire hazards.
    • Maintain a clean workplace by washing hands before and after experiments.
    • Clean up broken glass and spills immediately to prevent accidents.
    • Never use mouth pipettes for transferring liquids.
    • Dispose of solid and liquid wastes properly to ensure safety.

    Emergency Procedures

    • Small fires: Use wet towels or sand; for paper fires, submerge in water.
    • In case of a building fire, stay calm and exit via the closest fire exit.
    • Eye irritation: Rinse with tap water; apply a 2% NaHCO3 solution for acid exposure.
    • Skin cuts: Wash with water, apply iodine for fresh wounds, and cover with sterile gauze.
    • For fainting: Lay the victim down, keep head level with body, and use aromatic spirit of ammonia.
    • Treatment for acid burns involves running water and 5% acetic acid solution; alkali burns should use saturated NaHCO3 for 20 minutes.
    • Minor burns: cool with water, apply boric ointment or sterile petroleum jelly.

    Importance of Safety Procedures

    • Following safety guidelines creates a safer laboratory environment.

    Laboratory Equipment Set-Ups

    • Heating set-up requires wire gauze for support, tripod, and burners.
    • Filtration involves a funnel with filter paper and a receiving vessel to collect filtrate.
    • Distillation needs a thermometer, condenser, and distilling flask with mixture.

    Personal Protective Equipment (PPE)

    • Use appropriate attire: goggles, masks, laboratory gowns, and gloves.
    • Eating, drinking, and smoking are strictly prohibited in labs.

    Safety Equipment Usage

    • Eye wash station: flood eyes with water for 15 minutes if chemicals contact them.
    • Safety shower: used for large chemical spills on skin/clothing.
    • Fire extinguisher: operate by pulling the pin, aiming at the base of the fire, squeezing the handle, and sweeping the hose.
    • Fire safety blanket: put out clothing fires and keep shock victims warm.

    Laboratory Tools and Devices

    • Crucible: heat-resistant container for high-temperature heating.
    • Iron stand: supports glassware during experiments.
    • Mortar and pestle: used for crushing and grinding substances.
    • Evaporating dish: used for heating solutions over a burner.
    • Test tube brush: cleans inside of test tubes.
    • Stirring rod: mixes liquids in flasks or beakers.
    • Fume hood: limits exposure to hazardous fumes.
    • Wash bottle: rinses glassware (not for eye rinsing).

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    Description

    Test your knowledge on essential laboratory safety procedures. This quiz covers essential actions following a chemical spill, appropriate first aid measures, and safe practices for maintaining a laboratory environment. Ensure you're well-informed to handle laboratory emergencies effectively.

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