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) Metallurgy
(B) Chemical metallurgy
(C) Physical metallurgy
(D) Typical 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) Fusion
(B) Electro-deposition
(C) Reduction
(D) Powder metallurgy
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) Fusion
(B) Electro-deposition
(C) Reduction
(D) Powder metallurgy
8. . Which method of alloy preparation is preferable over others:
(A) Fusion
(B) Electro-deposition
(C) Reduction
(D) Powder metallurgy
9. . The most important property of Stainless Steel is its:
(A) Colour
(B) Density
(C) Strength
(D) High resistance to corrosion
10. . Brass is an alloy of copper and:
(A) Zn
(B) Sn
(C) Ni
(D) Mn
11. . In German Silver, copper percentage is:
(A) 60
(B) 70
(C) 80
(D) 90
12. . In Bronze, copper percentage is:
(A) 60
(B) 70
(C) 80
(D) 90
13. . Nichrome is an alloy of nickel, chromium and:
(A) Zn
(B) Sn
(C) Fe
(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) Nichrome
(C) German Silver
(D) Duraluminium
16. . Which alloy is used to fill dental cavities:
(A) Brass
(B) Nichrome
(C) Silver Amalgam
(D) Duraluminium
17. . Which alloy has iron:
(A) Bronze
(B) Brass
(C) Stainless Steel
(D) Solder
18. . Which alloy has lead:
(A) Bronze
(B) Brass
(C) Stainless Steel
(D) Solder
19. . Which alloy has mercury:
(A) Bronze
(B) Amalgam
(C) Stainless Steel
(D) Solder
20. . The most important component of Alloy is:
(A) Non-metal
(B) Metal
(C) Metalloid
(D) Lubricant