1. . The process of making components from metal powder is:
(A) Physical metallurgy
(B) Powder metallurgy
(C) Chemical metallurgy
(D) All these
2. . Grinding wheels that incorporate steel and diamond powder may be manufactured by:
(A) Powder metallurgy
(B) Casting process
(C) Forging process
(D) None of these
3. . Commonly methods of powder manufacturing for powder metallurgy:
(A) Atomization and reduction
(B) Electrolysis, crushing and milling
(C) Metal vapour and hydride carbon process
(D) All these
4. . Copper powder for powder metallurgy can be produced by heating copper oxide in a stream of:
(A) Oxygen
(B) Hydrogen
(C) Nitrogen
(D) Sulphur
5. . Metal powders used in powder metallurgy usually vary in size from 4 to:
(A) 100 microns
(B) 200 microns
(C) 300 microns
(D) 400 microns
6. . The purpose of compacting is to consolidate the powder into desired:
(A) Shape
(B) Size
(C) Quantity
(D) None of these
7. . Compacting pressure may be applied in:
(A) Die Pressing
(B) Roll pressing
(C) Extrusion
(D) All these
8. . Permanent metallic filters can be made by:
(A) Casting
(B) Powder metallurgy
(C) Machining
(D) All these
9. . Manufacturing process in which no material is wasted is called:
(A) Casting
(B) Powder metallurgy
(C) Machining
(D) All these