Indian Institute of Technology Madras (IIT-M) 2008 B.Tech Experimental Technique and Measurements - Question Paper

Department of Ocean Engineering, IIT Madras
OE 511 Experimental Technique and Measurements
Test two
05,Nov2008 60 min
ans all ques..

1. There is a requirement to measure forces on a cylinder due to various kinds of waves. discuss the basis of measurements and the governing principle behind the design of a force transducer. (7)

2. In a beam kind force transducer forces are acting at an angle as shown in the fig. How will you use strain gauges to measure the vertical and horizontal components of forces independently? (5)

3. In a diaphragm kind pressure transducer the subsequent data are provided. Dia 25 mm, Max Pressure two bar, material used is SS. What will be the maximum deflection of the diaphragm for the rated pressure? What should be the sensitivity of the deflection transducer if the minimum pressure to be measured is 10-4 of the rated pressure? (E = two x 1011 N/m2 and µ = 0.3) (7)

4. What are the various kinds of physical models and the purpose of every in Research and Development?
Using dimensional matrix derive the nondimensional parameters for a issue in structural mechanics. What should be the model load for complete similarity? (6)

Earning:   Approval pending.