UPTU Previous Exam Papers
B Tech 6th Semester Counting Properties
And Quality Control 2006-07
Note : (i) Answer all questions.
(ii) All questions carry equal marks.
(iii) Be precise in your answer.
1. Attempt any two of the following :
(a) Mention the basis of classification of paints.
(b) Write the various properties of paint and discuss any one of them.
(c) Define gloss. What are the factors, the gloss of a paint depends upon?
2. Attempt any two of the following :
(a) Explain the working of Hegman Gauge with a neat sketch.
(b) Differentiate between viscosity and consistency and give one example of testing the viscosity of a surface coating material.
(c) How do we test the opacity of a paint?
3. Attempt any two of the following :
(a) Give the reason of testing flexibility of a coating.
(b) What is PAC and what for this test is important?
(c) Explain briefly the procedure of testing a coating for fire resistant.
4. Attempt any two of the following :
(a) What is the need of analysing paints for their ingredients?
(b) Give the procedure for determining volatile matter, including water in a paint.
(c) Discuss the role of instrumentation in the analysis of binder in the coatings.
5. Attempt any two of the following :
(a) What do you understand by “Ageing of a coating”?
(b) Explain the mechanism of “Weatherometer”
(c) Discuss any one defect of dried paint film with proper remedial measure.