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Dr Reddys Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Principle of single pan analytical balance

4048

What is the pilot-plant in pharma sector.

1 1797

What is use of LOD and LOQ in validtion and give range and in calculation why we use 3.3* LOD here why we use 3.3

2 3908

what is basc principle of the HPLC,IR,UV AND GC? what is difference between diffusion spectra and transmision spectra in IR?

1 19216

why do we adjusted ph in the mobilphase

9 18539





why we use a particular hplc column for a particular compound give reasons?please

1805

What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?

2971

what is kf principal

5 10151

in hplc calibration injector linearity pass,it means inj and det is good. why to perform detector linearity is it required, if it is required,what is difference between injector and detector linearity in hplc calibration

4 10821

If mass balance is not passing in forced degradation in method validation that method is suitable or not?

1 6857

Which water can use Hplc analysis

9 8092

In chromatograpbic purity 90% is there, in assay 70% is there. How will you prove remaining 30%.

3 5815

Why pyrene is also use for calibration if detector

1 2749

why we use 0.1% acetone in gradient calibration of HPLC?

2 8574

what is the most common FT-IR source used for the MID&Near IR regions?

1 3560

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Un-Answered Questions

What is peoplesoft server process logs?

107


What is the use of com component in .net?

112


What is the difference between general competition and exact competition.

124


What do you mean by entity type extension?

125


Write an sql query to select all records from the table?

129






What is type structure?

100


What is difference between jms and activemq?

87


How do I create a iis application?

80


What are the characteristics of scr?

143


Difference between hashset and treeset?

122


Explain design 8421 to 2421 binary code converter?

121


TRAFO 1. WHY BREATHER IS USED. 2. WHY OIL GOES DOWN IN CONSERVATOR TANK. 3. WHY WE ARE TAKING OIL SAMPLE TAKING FROM BOTTOM OF TRANSFORMER. 4. HOW TO CHECK IR VALUE OF TRANSFORMER. 5. WHY OLTC HAVING BUCHHOLZ TRIP ONLY; WHY NO ALARM. 6. OFF LOAD TAP CHANGER OPERATION PROCEDURE. 7. TR. SHUTDOWN / ISOLATION PROCEDURE. 8. WHEN THREE TRS. IN PARALLEL, ONE TR. IS NOT SHARING THE LOAD – WHAT IS REASON AND WHAT YOU WILL DO. 9. WHY TR. HAS OLTC IN HV SIDE. 10. WHAT IS % IMPEDANCE. 11. WHY TR. RATING IN MVA. 12. WHAT IS VECTOR GROUP IN TR. 13. CONDITION FOR PARALLEL OPERATION OF TRS. 14. WHAT IS TERTIARY WINDING. WHERE IT WILL BE. 15. IF TR. TRIP ON BUCHHOLZ OR TAP CHANGER RELAY, WHAT YOU WILL DO. 16. DIFFERENCE BETWEEN OIL TEMP. AND WINDING TEMP. PROTECTION 17. HOW WINDING TEMP. IS MEASURED IN CAST RESIN TR. 18. DIFFERENT TYPES OF FAULTS IN TR. Trafo - Page-1 of 2 19. WHAT HAPPENS WHEN TR. CHARGED FROM LV. 20. WHAT WILL YOU DO IF MEGGER READING SHOWS ZERO BETWEEN LV WINDING AND EARTH. 21. CAN WE INTERCHANGE BUCHHOLZ RELAY OF MAIN TANK AND OLTC TANK. 22. IF THE LINE BETWEEN BREATHER AND CONSERVATOR TANK 23. LOCKED, WHAT WILL HAPPEN DURING LOAD CYCLE. 24. WHAT IS THE FUNCTION OF OIL SEAL IN BREATHER. 25. WHAT ARE LOCATIONS FOR BUCHHOLZ RELAY FIXED IN POWER TR. 26. WHAT ARE CHECKS IN POWER TR. DURING MAINTENANCE. 27. WHAT IS IMPORTANT WHEN WE CHECK OLTC OPERATION DURING MAINTENANCE. Trafo - Page 2 of 2

1490


cause of cylinder test failure

2322


what are different types of keys in sql?

156


What is accounts receivable?

186