Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B.Tech IV INSTRUMENTATION PRACTICE IN INDUSTRIES Previous Question Paper (May - 2019 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.
Part A
List different pulping processes.
Answer
The primary pulping processes are: 1) Mechanical pulping (groundwood), 2) Chemical pulping (Kraft or sulfate process, sulfite process), 3) Semichemical pulping, and 4) Recycled fiber pulping.
Briefly explain any three features of Fourdrinier machine used in paper manufacturing.
Answer
Three key features of the Fourdrinier machine include: 1) Wire Section: An endless moving wire mesh belt where the pulp slurry is deposited for initial drainage. 2) Press Section: A series of rollers that squeeze water out of the wet paper web to increase density and strength. 3) Dryer Section: A series of steam-heated cylinders that evaporate the remaining moisture to achieve the final paper dryness.
What do you mean by Portland cement?
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Explain why care has to be taken in nuclear waste disposal process.
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List the various Unit Operations in Instrumentation industries.
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What is the principle of operation of Mass flow meters?
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Differentiate between Barometer and Altimeter.
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Explain Gyroscope principle.
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What are the sensors available to measure RAT and SAT.
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Explain the any three drawbacks of U-Tube manometer.
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Part B
With a neat block diagram explain the pulp manufacture using sulphite pulping. List the demerits of the process.
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Explain the differences between Mechanical and Thermo-mechanical pulping processes.
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Explain in detail the manufacture of paper using wet processing technique. Bring out the merits and demerits of the process.
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What are the major ingredients necessary for the manufacture of cement? Explain in detail the characteristics of the identified ingredients above needed for the manufacture of cement.
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What are isotopes? Explain any one Isotope separation method.
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What product is obtained from a nuclear reactor. Explain the operation principle of nuclear reactors.
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Write explanatory notes on:
a) Distillation columns. b) Polymerization.
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With neat sketches and relevant expressions explain the operation of infrared pyrometers.
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Explain any one instrument used for aircraft speed measurement.
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Explain the operating principle of Gyroscopic flight instruments.
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Explain the principle of operation of magnetic compass indicating instrument.
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Explain the factors that affect the accuracy of the head indicating instruments. Suggest methods to overcome the same.
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Explain in detail, with neat sketches, the operation of Capacitance type Fuel gauge system.
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Explain with neat diagram the principle of operation of Radiation Pyrometer and list the merits and demerits of the same.
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