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Engineering Materials

Engineering Materials
Age-hardening is related with

Duralumin
German silver
Gun metal
Stainless steel

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Engineering Materials
Neutral solution is one which has pH value

Equal to 7
Less than 7
pH value has nothing to do with neutral solution
Greater than 7

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Engineering Materials
Heavy duty leaf and coil springs contain carbon of the following order

0.005
0.01
0.002
0.008

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Engineering Materials
Blast furnace produces following by reduction of iron ore

Wrought iron
Malleable iron
Cast iron
Pig iron

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Engineering Materials
Which is false statement about case hardening? Case hardening is done by

Cyaniding
Nitriding
Electroplating
Induction hardening

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Engineering Materials
Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Silicon
Phosphorus
Sulphur
Manganese

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