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?

Wear personal protective equipment at all times. Signup and view all the answers

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

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

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

Use tap water to rinse the eyes thoroughly. Signup and view all the answers

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

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

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

Mouth pipetting liquid samples. Signup and view all the answers

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

Goggles Signup and view all the answers

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

Use a safety shower Signup and view all the answers

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

Use soap to clean the eyes immediately Signup and view all the answers

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

To protect hands from chemical exposure Signup and view all the answers

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

Aim the hose at the base of the fire Signup and view all the answers

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

Tie it back to prevent accidents Signup and view all the answers

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

Eating and drinking Signup and view all the answers

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

5 to 6 feet Signup and view all the answers

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

To limit exposure to hazardous fumes Signup and view all the answers

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

Test tube brush Signup and view all the answers

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

Evaporating dish Signup and view all the answers

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

Gloves to prevent skin exposure Signup and view all the answers

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

Use for skin emergencies 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.