Write a brief note on method-Ato determine the dimensions of product.
[3 marks]Why is it necessary to carry out the testing at different conditions? Also
[4 marks]gDiivsec uthsse ilnim dietatatiiol nabs oouf tt ethset rpeusruplot.s es of testing.
[7 marks]Define the term PRI with its formula. Also give practical significance of PRI test.
[3 marks]What do you mean by green shrinkage? How is it determined?
[4 marks]Explain in detail about the principle of measuring micro hardness.
[7 marks]Write short note on “Durometer test”.
[7 marks]Draw the appropriate diagram of the device for compression set under constant deflection. Write the major components of the same.
[3 marks]Differentiate the terms ‘wear’ and ‘abrasion’. List the different types of wear mechanism with their example.
[4 marks]Explain in detail about the basic elements of tensile machine with the standard test procedure.
[7 marks]Write the significance and use of compression set test.
[3 marks]Describe the working of ‘Akron’ and ‘Du Pont’ type of arrangements for abrasion test.
[4 marks]Discuss in detail about the different variations in form of test piece for tear test.
[7 marks]Draw the labeled diagram of vertical rebound apparatus.
[3 marks]Write the significance and calculation for the measurement of retraction at lower temperature.
[4 marks]Discuss in detail about the interpretation of results for the measurement of resistance to flex-cracking by De Mattia tester.
[7 marks]Write the standard procedure to determine rebound resilience by vertical rebound apparatus.
[3 marks]What is the standard procedure for the measurement of retraction at lower temperature?
[4 marks]Explain in detail about the apparatus and standard procedure for the measurement of resistance to flex-cracking by De Mattia tester.
[7 marks]Write a brief note on ASTM reference fuels.
[3 marks]Draw a neat diagram of electrode assembly used to measure the volume resistivity.
[4 marks]Explain the term permeability. Discuss the constant volume method to study permeability behavior of vulcanizate.1
[7 marks]Write a brief note on ASTM reference oil.
[3 marks]Describe the given terms: (i) Volume Resistivity (ii) Surface Resistivity
[4 marks]Explain the term solubility constant. Discuss the constant pressure method to study permeability behavior of vulcanizate.
[7 marks]