Stainless steel resists corrosion due to A. carbon B. sulphur C. vanadium D. chromium E. maganese…

Stainless steel resists corrosion due to A. carbon B. sulphur C. vanadium D. chromium E. maganese…

Stainless steel resists corrosion due to

A. carbon B. sulphur
C. vanadium D. chromium
E. maganese.

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37. Commonly used thinner in
A. lacquer paints, is alcohol
B. cellulose paints is ethyle acetate
C. oil paints, is naptha
D. distemper, is water
E. all the above.

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38.

Good quality sand is never obtained from

A. river
B. nala
C. sea
D. gravel powder.