Download PTU B.Tech 2020 March ICE 7th Sem Analytical Instrumentation Question Paper

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Roll No. Total No. of Pages : 02
Total No. of Questions : 09

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INSTRUCTION TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students has to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students has to attempt any TWO questions.

SECTION-A

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1. Answer briefly :
   1. Give the selection criteria for carrier gas.
   2. Define Beer Law.
   3. What are the applications of oxygen analyzer?
   4. Give the general classification of PH cell.
   5. Define Humidity & Dew point.

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   6. Name the instruments used in IR spectrometry.
   7. What are the different types of gas chromatography?
   8. What are the types of detectors in mass spectrometer?
   9. What is Spin-Spin coupling?
   10. What are the types of NMR spectrometer?

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SECTION-B

1. Briefly explain about dissolved oxygen analyzer.
2. Describe the construction of a pH electrode. Draw the electronic circuit diagram for measuring pH of a liquid and explain its working.
3. In NMR spectroscopy mention the advantages of using a magnet with as great a field strength as possible. Also explain the difference between a continuous wave and fourier transform NMR.

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4. Explain how the dust and smoke analyzer is used?
5. Describe the construction and working of IR analyzer.

SECTION-C

1. a) What are the types gas analysers? Explain anyone with example.
   b) Compare UV, IR and near IR chemical analysers.

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2. a) Describe the automatic and faithful sampling with neat diagrams.
   b) Write the construction and working of analytical electron microscope.
3. Write short note on following :
   1. Electron Spin Resonance (ESR)
   2. Viscosity and consistency Measurement

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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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