QWH f 2w
- Which of the following is not alloy of tin?
(a) Babbitt metal (b) Mangolia metal
(c) White metal (d) Pewter - Which of the following is the densest and lightest metal?
(a) Alluminium (b) Copper
(c) Lead (d) Tin - From which of the following ore zinc is extracted?
(a) Galena (b) Black jack
(c) Corundum (d) Malachite - Ductility of nickel is enhanced rendering in it
(a) carbon (b) arsenic
(c) sulphur (d) magnesium
e2
- (b) 2. (b) 3. (d) 4. (a) 5. (d) 6. (b) 7. (a) 8. (c) 9. (c) 10. (b)
- (c) 12. (b) 13. (d)