1. Most of the machines are made up of
(A) Pure metals
(B) Alloy
(C) Non-metals
(D) Pure metals and non-metals
2. The science which deals with study of alloys is called
(A) Typical metallurgy
(B) Chemical metallurgy
(C) Physical metallurgy
(D) Metallurgy
3. The properties of alloys as compared to pure metals are
(A) Superior
(B) Inferior
(C) Equal
(D) Junior
4. Electrolysis is used in which method of alloy preparation
(A) Fusion
(B) Electro-deposition
(C) Reduction
(D) Powder metallurgy
5. Melting temperature is used in which method of alloy preparation
(A) Powder metallurgy
(B) Electro-deposition
(C) Reduction
(D) Fusion
6. The processes of blending, compacting and sintering are used in which method of alloy preparation
(A) Fusion
(B) Electro-deposition
(C) Reduction
(D) Powder metallurgy
7. The removal of oxygen is concerned in which method of alloy preparation
(A) Reduction
(B) Electro-deposition
(C) Fusion
(D) Powder metallurgy
8. Which method of alloy preparation is preferable over others
(A) Electro-deposition
(B) Fusion
(C) Reduction
(D) Powder metallurgy
9. The most important property of Stainless Steel is it’s
(A) High resistance of corrosion
(B) Density
(C) Strength
(D) Colour
10. Brass is an alloy of copper and
(A) Ni
(B) Sn
(C) Zn
(D) Mn
11. In German Silver copper % age is
(A) 90
(B) 70
(C) 80
(D) 60
12. In Bronze copper % age is
(A) 90
(B) 70
(C) 80
(D) 60
13. Nichrome is an alloy of nickel, chromium and
(A) Fe
(B) Sn
(C) Zn
(D) Mn
14. Solder is an alloy of lead and
(A) Zn
(B) Sn
(C) Fe
(D) Mn
15. Which alloy is used in heating elements
(A) Brass
(B) Duraluminium
(C) German Silver
(D) Nichrome
16. Which alloy is used to fill dental cavities
(A) Brass
(B) Nichrome
(C) Silver Amalgam
(D) Duraluminium
17. Which alloy has iron
(A) Stainless Steel
(B) Brass
(C) Bronze
(D) Solder
18. Which alloy has lead
(A) Bronze
(B) Brass
(C) Stainless Steel
(D) Solder
19. Which alloy has mercury
(A) Amalgam
(B) Bronze
(C) Stainless Steel
(D) Solder
20. The most important component of Alloy is
(A) Non-metal
(B) Lubricant
(C) Metalloid
(D) Metal