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Solution to Previous Year Exam Questions pyq for Industrial Instrumentation - II of 2014 - bput by Abneet Behera

  • Industrial Instrumentation - II
  • 2014
  • PYQ Solution
  • Biju Patnaik University of Technology Rourkela Odisha - BPUT
  • Computer Science Engineering
  • B.Tech
  • 10 Offline Downloads
  • Uploaded 1 year ago
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Subject: INDUSTRIAL INSTRUMENTATION Subject Code: PEEI 5403 Semester: 8th Applicable Branch (es): CSE, IT Question Code: F 426 Year of Examination: 2014 Exam Type: (Special/Regular): REGULAR Solution Prepared by Sl.No. Faculty Name Email ID 1 SUNETRA BANERJEE Iam.sunetra@gmail.com 2 SUCHANDRA PAL suchandrapal@gmail.com 3 DEBASISH CHOWDHURY debasishch.me@gmail.com NATIONAL INSTITUTE OF SCIENCE &TECHNOLOGY PALUR HILLS, BERHAMPUR, ORISSA – 761008, INDIA

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INDUSTRIAL INSTRUMENTATION PEEI 5403 1. (a) What do you mean by Dynamic calibration? Why is it not applicable foe zero order instruments? Ans: It is the calibration in which the input varies over a specific length of time and the output is recorded vs. time. (b) Define Loading error with example. Ans. The output of a sensor device may deviate from the correct value due to loading effect. We can categorize two types of loading effect: • Inter element loading--A given element in the system may modify the characteristics of the previous element. • Process loading--The introduction of the sensing element into the process or system being measured causes the value of the measured variable to change. 2|P a ge NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY

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INDUSTRIAL INSTRUMENTATION PEEI 5403 (c). What is spectroscopy? What is mass Spectroscopy? Spectroscopy-- is the study of the interaction between electromagnetic radiation and matter In order to measure the characteristics of individual molecules, a mass spectrometer converts them to ions so that they can be moved about and manipulated by external electric and magnetic fields. The three essential functions of a mass spectrometer, and the associated components, are: 1. A small sample of compound is ionized, usually to cations by loss of an electron. 2. The ions are sorted and separated according to their mass and charge. 3|P a ge NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY

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INDUSTRIAL INSTRUMENTATION PEEI 5403 3. The separated ions are then detected and tallied, and the results are displayed on a chart. (d). Define white radiation. Ans. a form of radiation that results from the rapid deceleration of high-speed electrons striking a target, as occurs when the electron beam of a tungsten cathode strikes the tungsten or molybdenum target of the anode in an x-ray tube. Most of the x-rays emitted from a diagnostic or therapeutic x-ray unit represent white radiation. (e). Write Bragg’s condition for coherent scattering. Ans. Bragg's law gives the angles for coherent and incoherent scattering from a crystal lattice. When X-rays are incident on an atom, they make the electronic cloud move as does any electromagnetic wave. The movement of these charges re-radiates waves with the same frequency (blurred slightly due to a variety of effects); this phenomenon is known as Rayleigh scattering (or elastic scattering). The scattered waves can themselves be scattered but this secondary scattering is assumed to be negligible. (f). Draw the block diagram of generalized telemetring system. 4|P a ge NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY

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