Experimental Stress Analysis
Experimental Stress Analysis
Experimental Stress Analysis
No
Time: 95 min
Max Marks: 60
1.1
1.2
1.3
Define Sensitivity.
1.4
1.5
1.6
Define Range.
1.7
1.8
1.9
1.10
1.11 a
What are the basic characteristics of a strain gauge? Which factors should be
considered while selecting a strain gauge?
What are the various types of mechanical strain gauges? Explain Huggenberger
extensometer in detail.
[Or]
Explain in detail about acoustical strain gauges with neat sketches. How natural
frequency of the wire is used for this technique? Explain all terms involved in
frequency expression.
2.1
2.2
2.3
2.4
Explain in detail about the LVDT type of strain gages with neat diagrams.
[Or]
b
Derive an expression for strain sensitivity or gage factor of electrical resistance strain
Roll. No
Time: 95 min
Max Marks: 60
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11 a
What is the working and operating principle of Optical strain gauge? Explain
Tuckerman optical strain gauge with a neat sketch?
What are capacitance strain gauges? Explain in detail the capacitance strain gage
with necessary diagrams.
[Or]
Explain in detail about Schafaer acoustical strain gauge with neat sketches.
Answer ALL Questions
2.1
2.2
2.3
Derive an expression for change in voltage in wheatstone bridge circuit which is shown in
figure.
[Or]
b
Explain in detail the various types of electrical resistance strain gages with neat diagrams.