c. Explain any one transducer application of strain gauges
a. Explain Snell Optics law b Draw the arrangement of a circular
polariscope for dark field

c. Using John's Calculus show that circular polariscope arrangement produces
isochromatic fringe pattern only

a. Explain Tardy compensation method used in photo elasticity b
What is meant by stress freezing in photo elasticity?
c. Explain the bi-refringent coating method with suitable sketches

PART C
a. Explain how model stresses are evaluated using maximum stress theory under
direct loading in brittle coating method
b. What are isostatics and isoentatics patterns in brittle coating analysis?
c. Name any three types of brittle coating methods used
a. Explain the procedure of dye penetrant testing and its limitations
४. Explain briefly various techniques used in Radiographic examination

a. Explain the following terms associated with UT testing (a) straight beam transducer (b)
Angle beam transducer (c) Phased array

b. Explain any two laser testing methods used in Non-Destructive evaluation