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Posted Date: 19 Jul 2008 Posted By:: Vidya Member Level: Gold Points: 5 (₹ 1)
2005 Janardan Rai Nagar Rajasthan Vidyapeeth M.Tech. Computer Science MSCI 01 – INDUSTRIAL INSTRUMENTATION AND CONTROL University Question paper
MASTER OF TECHNOLOGY
(SEMESTER - IV) (ELECTICAL)
MSCI 01 – INDUSTRIAL INSTRUMENTATION AND CONTROL
TIME: 03 HOURS MAX. MARKS: 75
1. Question paper is divided into three groups
2. Each group is of 25 marks each
3. Figure to the right in bracket indicates mark
4. Assume suitable data if necessary
GROUP A: Answer any three questions. Question No. 1 is compulsory.
Q.1: Draw and explain the block diagram representing the functional elements of an Instrument system. (05)
Q.2: Explain any one type of moving iron instruments with the help of a diagram. Describe one example. (10)
Q.3: Describe the principle of resistance strain guage. Derive the expression for Guage factor. (10)
Q.4: Give the working of in-line rotating torque sensor with the help of diagrams. (10)
Q.5: Explain with diagrams the working and construction of two types of Tachometer generators. (10)
GROUP B: Answer any three questions. Question No. 6 is compulsory.
Q.6: Explain the construction and working of Float-type level indicator.(05)
Q.7: Explain how the diaphragms help to detect pressure with the help
of a bridge circuit. (10)
Q.8: What are the calibration methods for liquid flow meters. (10)
Q.9: Explain the working of radiation pyrometers. Give its advantages. (10)
Q.10: Write short notes on Thesmistors. (10)
GROUP C: All Questions are Compulsory.
Q.11 Fill in the blanks (each question carries 2 marks)
(i) Thermocouple works on _____________phenomena
(ii). Pirani gauge is used for _________measurement.
(iii) To minimize the offset of proportional controller, Proportional gain is
required to ________
(iv) Distribution control system is used for ____________type of process.
(v) Hot wire anemometer is used for ____________
Q.12 Multiple choice question. (Each question carries 2 marks)
(i) When phase shift between same frequency signal applied to both vertical and horizontal plate is 90?, then the figure in the screen of CRT will be
(a) straight line (b) circle
(c) parabola (d) hyperbola
(ii) The magnetic pick-up sensors produces
(a) pulses from a rotating shaft with mechanical contact
(b) pulses from a rotating shaft without mechanical contact
(c) an analog signal in the form of a continuous drag
(d) none of these
(iii) Micro can passes through
(a) fibre glass tank (b) metal tank
(b) both of them (c) none of these
(d) Which gauge measures pressure by sensing the changes in the thermal conductivity of a gas
(a) pirani gauge (b) slack diaphragm gauge
(c) Mc Leod gauge (d) None of these
(iv) In laser diameter gauge
(a) two pairs of laser beam transmitter receiver are used
(b) one pairs of laser beam transmitter receiver are used
(c) four pairs of laser beam transmitter receiver are used
(d) none of these
Q.13 True or false (each question carries 1 mark).
(i) Area of the plates in the capacitor.
(ii) The input resistance of a measuring device should be very high.
(iii) Theodolite can be used a tachometer.
(iv) The resistance strain gauge is based on the specific resistance of a conductor.
(v) A sight glass is used for the continuous indication of liquid level within a tank or vessel.
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