A. Nitriding
B. Hot dipg
C. Electroplating
D. Both ‘B’ & ‘C’
Case hardening is not done by________________? Read More »
Chemical Engineering Basics A. Removed by acid pickling
B. Hammered into the surface
C. Removed with coarse emery cloth
D. Left as such to protect the surface
A. Lead
B. Copper
C. Aluminium
D. Wrought iron
A. Copper-lead alloys
B. Babbitts
C. Bronzes
D. Cermets
Which of the following is not used as a bearing material ? Read More »
Chemical Engineering Basics A. Plasticiser: increases the polymer strength
B. Heat stabiliser: increases the maximum service temperature
C. Fillers: Does not affect the property of polymer but increases its weight
D. Lubricants: increases the flexibility of polymers
Pick out the correct combination about the role of various additives used in polymers ? Read More »
Chemical Engineering Basics A. Close the surface porosity
B. Break the continuity of columnar grains
C. Flatten the weldment
D. Introduce texture in the weld
In multipass welds, shot peening is done after each pass to__________________? Read More »
Chemical Engineering Basics A. Powder
B. Gaseous mixture
C. Solution
D. Emulsion
Shampoos are commercially not available in the form of ___________________? Read More »
Chemical Engineering Basics A. Classification
B. Smelting
C. Roasting
D. None of these
Which of the following is an ore dressing operation ? Read More »
Chemical Engineering Basics