Related Questions

Powder metallurgy process does not make metal powder by
A Atomisation
B Grinding/milling
C Hammering
D Electrolytic deposition
The process of heating the cold pressed metallic powder is called __________ in powder metallurgy.
A Precipitation
B Fusion
C Sintering
D Agglomeration
Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of
A 90% tungsten carbide and 10% cobalt
B 70% aluminium oxide & 30% silica
C 30% nickel, 15% chromium & 55% tungsten
D 65% tungsten & 35% zirconium
If S is the sum of three angles of a spherical triangle, the spherical excess equals
A S - 90°
B S - 180°
C S - 270°
D S - 360°
Perminvar alloy having constant permeability is an alloy of
A Nickel, copper and iron
B Nickel, copper and zinc
C Copper, nickel and antimony
D Iron, zinc and bismuth
The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.
A Less than
B Equal to
C More than
D Either B or C; depends on the type of alloy
Constantan an alloy used in thermocouples is an alloy of
A Copper and tin
B Copper and zinc
C Copper and iron
D Copper and nickel
Which of the following metals is generally manufactured by electrolysis process?
A Load
B Aluminium
C Copper
D Zinc
E None of the above
Steel pipes are normally manufactured by __________ process.
A Extrusion
B Cold working
C Forging
D Electroforming
In premitive days, __________ was being manufactured by Leblanc Process.
A Alum
B Washing soda
C Soda ash
D Calcium carbide

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