1.
Which of the following is an ore dressing operation ?

2.
Shampoos are commercially not available in the form of ___________________?

3.
In multipass welds, shot peening is done after each pass to__________________?

4.
Pick out the correct combination about the role of various additives used in polymers ?

5.
Which of the following is not used as a bearing material ?

6.
The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?

7.
Oxide layer formed on the non-ferrous metal surface after its annealing is__________________?

8.
Case hardening is not done by________________?

9.
Upto the critical radius of insulation, added insulation, will____________________?

10.
Chlorine acts as a bleaching agent only in the presence of ______________________?