22 Questions
What tense should be used when writing the 'Materials & Methods' section of a practical report?
Past passive tense
When working in a laboratory, what is the recommended order for entering the details of a practical in a CR book?
Title, Date, Practical Number
What is the purpose of illustrating 15 laboratory safety signs in a practical report?
To display suitable safety signs for the laboratory
When summarizing the knowledge acquired in a practical report, which verb tense should be primarily used?
Past tense
What type of lines should be used when drawing pictures for laboratory reports?
Straight lines
Which section of a practical report should include a list of common laboratory glassware and their uses?
'Observations' section
What is the difference between hazard and risk?
Hazard is something that can cause harm, while risk is the probability of being harmed under specific circumstances.
Why should one not eat or drink in the laboratory?
To prevent accidental exposure to harmful substances.
What should you do with water bottles and bags while in the laboratory?
Place them outside the laboratory in a locker.
Why should you refrain from using laboratory equipment unless you are familiar with it or under supervision?
To prevent injury to yourself and others.
Why is it important to wash your hands after a laboratory session?
To remove any chemical residue from your hands.
How should you handle expensive and sensitive laboratory equipment?
Ensure proper handling and clean them after every use.
What type of glassware is commonly used for storing chemicals that tend to degrade under sunlight?
Soda-Lime glass
Which of the following chemicals can still be corrosive to laboratory glassware?
Phosphoric acid (H3PO4)
What should you avoid doing when lifting or carrying laboratory glassware?
Holding the trim or neck
What should be done when cleaning laboratory glassware to facilitate longer use and precise results?
Use a biodegradable phosphorous free detergent
What safety precautions should be taken before using any laboratory apparatus?
Check for cracks or leaks
What should be avoided when diluting concentrated acids or alkaline solutions into glass measuring cylinders?
Exposing to direct heat
What is the recommended method for filling a pipette to avoid mouth pipetting?
Use a mechanical pipette filler
What should you do before heating a mixture or test in glassware?
Heat slowly and gradually
What does using an open flame in a Bunsen burner require?
Employing a soft flame and ceramic center of wire gauze
What should be done with broken glassware in the laboratory?
Dispose into a separate bin kept for broken glassware
Test your knowledge on Laboratory Safety Aspects and Familiarization with this quiz. Questions cover topics such as objectives, introduction, materials & methods, observations, and results & discussion.
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