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For the following questions answer them individually
Babbitt metal is _______ base alloy.
Tin
Copper
Lead
Tungsten
With which of the following polymerization is associated?
Zinc
Thermoplastic
None of these
_______ can easily be drawn into wire.
Cast Iron
_______ is the binding material in cemented carbides.
Nickel
Cobalt
Carbon
Vanadium
As percentage of carbon increase in steel its_______decreases.
Corrosion resistance
Ultimate strength
Hardness
Ductility
Filling or decking in a cooling tower increases the rate of heat transfer by providing:-
increased flow of water
increased flow of air
increased flow of water and air
a large amount of wetted surface
For the products of_______ LD converter is used.
steel
polythene
graphite
cast iron
In metals the size of coarse grains is greater than
0.5 m
0.005 mm
0.0005 mm
In blast furnace ______ is used as fuel.
producer gas
coal
coke
diesel
By which of the following heat treatment processes, a small selected portion of the job can be hardened?
Nitriding
Cyaniding
Pack hardening
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