PTU Punjab Technical University B-Tech May 2019 Question Papers 5th Semester Automation Robotics Engineering (ECE-EIE)
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Automation & Robotics) (2011 & Onward) (Sem.?5)
ELECTRONICS MEASUREMENT AND INSTRUMENTATION
Subject Code : BTEC-404
M.Code : 70478
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt any T WO questions.
SECTION-A
Q1 Answer briefly :
a) What do you mean by resolution? Explain.
b) What is loading? Explain.
c) List the general specifications of a DVM.
d) List the advantages of Kelvin double bridge.
e) Discuss the principle of galvanometer.
f) Why is Hay's bridge suited for measurement of inductance of high Q coils? Explain.
g) What is the need of spectrum analyzer? Discuss.
h) List the advantages of digital tape recorders.
i) What is seeback effect? Explain.
j) What is the need of telemetry system? Discuss.
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SECTION-B
2. Define the following :
a) Accuracy
b) Precision
c) Sensitivity
d) Linearity
e) Hysteresis
3. Explain how the following measurements can be made with the use of a CRO ?
a) Frequency
b) Voltage
4.
Explain the term "Total Harmonic Distortion". Describe the functioning of a total
harmonic distortion analyzer.
5.
Explain the construction and principle of working of a linear variable differential
transformer (L.V.D.T).
6.
Describe the different methods of data transmission. Explain the block diagram of a
general telemetry system.
SECTION-C
7.
Explain the working of (i) attraction type and (ii) repulsion type of moving iron
instruments with the help of neat diagrams. Describe the methods of producing
controlling and damping torques in them. Explain why these meters can be used on both
a.c and d.c?
8.
a) Explain the functioning of a ramp type digital voltmeter.
b) Explain the construction and working nixie tube.
9
Discuss the following :
a) Data Acquisition systems
b) Error and its classification
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 04 November 2019