Posted Date: 21 Jan 2013      Posted By:: Shafeer V U    Member Level: Gold  Points: 5 (Rs. 4)

# 2012 Mahatma Gandhi University B.Tech Applied Electronics and Instrumentation B.TECH DEGREE EXAMINATION, NOVEMBER 2012 MODEL QUESTION PAPER Fifth Semester AI010 503 BASIC INSTRUMENTATION & RECORDING SYSTEM Question paper

 Course: B.Tech Applied Electronics and Instrumentation University/board: Mahatma Gandhi University

Download MG university 5th semester B tech applied electronics and instrumentation engineering question paper freely from here . Are you looking for model 5th semester B tech question paper? Here is the model question paper from MG University for B tech course in applied electronics and instrumentation engineering. Here you will find latest 5th semester B tech model question paper AI010 503 BASIC INSTRUMENTATION & RECORDING SYSTEM for applied electronics and instrumentation engineering according to latest university syllabus. Go through the 5th semester B tech model question paper for your revision and score good mark in the upcoming university examination.

Part A
1. Distinguish between precision and resolution.
2. Which are the two conditions to be met to balance an ac bridge?
3. Explain why the graduations for resistance scale and current scale are in opposite directions in a
multimeter.
4. Explain the principle of digital measurement of a given time interval.
5. What is a linear sweep? What is its role in an oscilloscope?
[5 x 3 = 15 marks]
Part B
6. What is the need for calibration? Explain the main steps involved in the calibration of an instrument.
7. Explain how Kelvin bridge gives better accuracy as compared to Wheatstone bridge in the
measurement of low value resistances.
8. What do you mean by harmonic distortion? What is the basic reason for harmonic distortion? What is
distortion factor?
9. A dual slope integrating type of A/D converter has an integrating capacitor of 0.1 µF, and a resistance
of 220 kO. If the reference voltage is 2V, and the output of the integrator is not to exceed 10 V, what is
the maximum time of integration?
10. Explain how the phase difference between two waveforms can be determined using an oscilloscope.
[5 x 5 = 25 marks]Part C
11. List four important specifications related to the dynamic characteristics of a measuring device.
Explain the meaning and significance of each of these.
OR
12. a. With suitable examples, explain the need for measurement standards.
b. Clearly distinguish between accuracy and precision. How do you specify accuracy?
13. Explain how Maxwell Bridge helps measurement of inductance. Derive the required relation.
OR
14. Explain how Schering Bridge helps measurement of capacitance. Derive the required relation.
15. Making use of suitable block diagram, explain the working of a vector impedance meter.
OR
16. What is the function of wave analyser? With the help of suitable block diagram, explain how a
heterodyne wave analyser works.
17. With the help of suitable block diagram, explain the working of a dual slope digital voltmeter.
OR
18. With the help of suitable block diagram, explain the working of a successive approximation DVM.
19. Give block diagram for a general purpose oscilloscope. Explain the role of each block.
OR
20. Explain the function of an X-Y recorder. With the help of necessary circuit diagram, explain how the X
and Y scales are set.
[5 x 12 = 60 marks]

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