QUESTIONS

1. What are the advantages and disadvantages of glassware and plasticware in the laboratory?
2. What is the difference between a graduated pipette and a one-mark volumetric pipette?
3. Describe the following pipettes: micro, automatic, Pasteur and Thoma.
4. What is a pipette filler? Give an example.
5. What is meant by a reagent?
6. Describe the following types of bottle used in laboratories: reagent, dropping, bijoux, McCartney, Winchester and universal.
7. Describe how you would clean laboratory glassware.
8. Upon what piece of laboratory equipment would you find a Vernier scale?
9. What is the Vernier scale?
10. What is the function of the substage condenser on a microscope?
11. What is the function of the iris diaphragm on a microscope?
12. Which magnification is used for viewing under oil immersion?
13. How may the bulb life of the microscope be maximised?
14. What is meant by "racking up"?
15. What is a colorimeter?
16. When might a Bunsen burner be used in the laboratory?
17. What is a centrifuge?
18. What is a microhaematocrit centrifuge?
19. What precautions must be taken when using the centrifuge?
20. Describe the cleaning and maintenance of the centrifuge.
21. What is a laboratory incubator used for?
22. Describe the cleaning and maintenance of the incubator.