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Engineering Materials

Engineering Materials
The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is

Chromium
Nickel
Vanadium
Cobalt

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Engineering Materials
Corundum contains more than 95%

MgO
Al2O3
Steel
SiO2

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Engineering Materials
When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron.

None of these
Both A and B
Free graphite
Cementite

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Engineering Materials
Which of the following alloys does not have copper as one of the constituents?

Nichrome
Monel metal
Constantan
Delta metal

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Engineering Materials
Pig iron is the name given to

Raw material for blast furnace
Product of blast furnace made by reduction of iron ore
Iron in molten form in the ladles
Iron containing huge quantities of carbon

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Engineering Materials
Nodular iron has

All of these
High tensile strength
High machinability
Low melting point

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