Monday, January 20, 2014

M. Tech (Structures) - Advanced Concrete Lab - Viva Voce Questions

1.    List out various tests on Cement?
2.    List out various tests on Fine Aggregate?
3.    List out various tests on Coarse Aggregate?
4.    What do you know about NDT?
5.    List out various equipment used in NDT?
6.  Explain about Admixtures?
7.    Vicat Apparatus is used for?
8.    Initial Setting Time of OPC?
9.    Final Setting Time of OPC?
10.  List out Grades of Cement available in Market?
11.  Apparatus used for Soundness of Cement?
12. Which equipment is used to test Compression Strength of Concrete?
13. Explain about grading of aggregate?
14.  Workability Means?
15.  List out Workability Tests?
16.  Slump value required for RCC Slab?
17.  What is Segregation of concrete?
18.  List out various sizes of Coarse Aggregate used in Concrete?
19.  Equipment used to test Compression Strength of Concrete?
20.  Size of Concrete Cubes?
21.  What is the standard w/c value for nominal mix of concrete?
22.  Density of Concrete?
23.  No. of Cube samples required for testing Compression Strength for 100 m3 of concrete?
24. What is Concrete Maturity?
25.  Aggregate Impact value of material A is 15 and that of B is 35. Which one is better?
26.  Explain aggregate crushing value. How would you express?
27.  Aggregate crushing value of material A is 40 and that of B is 25. Which one is better and why?
28.  How is aggregate impact value expressed?
29. Nominal Mix vs Design Mix?
30. How to increase initial setting time of concrete?
31. Explain about the influence of W/C ratio?
32. List out some of Admixtures available in market?
33. Plasticizers are used for?
34. Size of cube used for testing of Compression Strength of Cement?
35. Mix proportions of M30 grade concrete?

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