BANK OF QUESTIONS | MAINTENANCE AND CALIBRATION OF LABORATORY EQUIPMENT AND INSTRUMENTS | MLT NTA LEVEL 5

BANK OF QUESTIONS | MAINTENANCE AND CALIBRATION OF LABORATORY EQUIPMENT AND INSTRUMENTS | MLT NTA LEVEL 5

BANK OF QUESTIONS | MAINTENANCE AND CALIBRATION OF LABORATORY EQUIPMENT AND INSTRUMENTS | MLT NTA LEVEL 5

Below are example of naotes za wizara of MAINTENANCE AND CALIBRATION OF LABORATORY EQUIPMENT AND INSTRUMENTS

pH: pH is a unit of measure which describes the degree of acidity or alkalinity (basic) of a solution. It is measured on a scale of 0 to 14. The formal definition of pH is the negative  logarithm of the hydrogen ion activity

pH = -log[H+]

pH meter: is an electronic instrument used for measuring the pH (acidity or alkalinity) of a liquid (though special probes are sometimes used to measure the pH of semi-solid substances).

A typical pH meter consists of a special measuring probe (a glass electrode) connected to an electronic meter that measures and displays the pH reading

The pH meter is used for determining the concentration of hydrogen ions [H+] in a solution.

This equipment, provided it is carefully used and calibrated, measures the acidity of an aqueous solution. pH meters are sometimes called pH analysers, pH monitors or potentiometers.

 

List of materials required in user PPM for pH Meter

•       Distilled water

•       Potassium Chloride solution

•       Buffer solution

•       Syringe supplied with PKL

•       M HCl solution or 0.1 M HNO3,

•       Domestic Bleach

•       Methyl alcohol

•       1% pepsin and 0.1 M HCl

•       Protective gloves

•       Lab coat

•       Ethylene chloride

 

The followings are the bank questions of Maintenance and calibration of laboratory equipment and instruments.

1. What is Maintenance?
2. Mention two types of maintenance
3. Define Planned preventive maintenance
4. What are benefits of Planned Preventive Maintenance?
5. Why Not documented not done?
6. Why is important to follow SOP during PPM
7. Which method is used when performing concentrated cleaning
8. Mention things to consider before performing planned preventive maintenance
9. What is FCS and SSC
10. Explain the Principle of Flow Cytometry
11. What  should be done before run Long Cleaning.
12. Explain the usage of  Microhematocrit.
13. Why  lubrication is not allowed in analytical balance (if not specified by the manufacture).
14. Explain in which mode the CD4  pipette is working
15. Define Levey  Jennings Charts, Control Limit and Quality Control
16. Which Rules are used in Levey Jennings Chart and explain them
17. Why Calibrating  Colorimeter
18. What is Occurrence
19. List important things which are included in occurrence Log, Calibration and Maintenance Log
20. prepare a Calibration report laboratory equipment / instruments.
21. Prepare maintenance reports for laboratory equipment / instruments
22. Prepare occurrences reports for laboratory equipment / instruments.
23. Why Calibration of instruments is of importance factor?

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