Subject Code: 2170913
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-VII(NEW) EXAMINATION — SUMMER 2019
Subject Name: Industrial Instrumentation
Time: 02:30 PM TO 05:00 PM
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) Differentiate between active and passive transducer with example. MARKS 03
(b) Write the formula of Gauge Factor for resistive strain gauge. Explain how poison’s ratio, dimensions and specific resistance contribute to Gage Factor. MARKS 04
(c) Explain construction and working of optical pyrometer with its advantages and disadvantages. MARKS 07
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Q.2 (a) Explain how pressure can be measured with LVDT. MARKS 03
(b) Explain how cold junction compensation is done in thermocouple. MARKS 04
(c) Explain how angular displacement of shaft can be measured using Hall effect principle. MARKS 07
OR
(c) Explain working of four arm active Wheatstone bridge circuit employed for strain measurement considering two arms experiencing tension and other two arms experiencing compression. MARKS 07
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Q.3 (a) Enlist methods of torque measurement. Explain any one of them in brief. MARKS 03
(b) Explain how the level can be measured by airpurge system. MARKS 04
(c) Write short note on Ultrasonic flow meter. MARKS 07
OR
Q.3 (a) State principle of operation and construction of RTD. MARKS 03
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(b) Enlist different types of load cells. Briefly explain any one of them. MARKS 04
(c) Write a note on Ultrasonic level detector. MARKS 07
Q.4 (a) Explain how level can be measured using capacitive principle. MARKS 03
(b) Draw the schematic of X-Y, recorder. MARKS 04
(c) Explain optical encoder principle used for shaft speed measurement. MARKS 07
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OR
Q.4 (a) Describe working of sample and hold circuit. MARKS 03
(b) Briefly explain working of Pirani Gauge. MARKS 04
(c) Write a note on modern digital data acquisition system. MARKS 07
Q.5 (a) Explain working of electromagnetic type flow meter. MARKS 03
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(b) Explain how calibration of pressure gauge is carried out. MARKS 04
(c) Explain basic requirement of transducer system. MARKS 07
OR
Q.5 (a) Explain how Venturi tube used for flow measurement. MARKS 03
(b) Briefly explain working of McLeod gauge. MARKS 04
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(c) Explain the following characteristics of a Transducer. MARKS 07
- Precision
- Resolution
- Sensitivity
- Threshold
- Repeatability
- Fidelity
- Drift
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Date: 10/05/2019
Total Marks: 70
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This download link is referred from the post: GTU BE 2019 Summer Question Papers || Gujarat Technological University
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