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Engineering Materials

Engineering Materials
In malleable iron, carbon is present in the form of

Free carbon
Nodular aggregates of graphite
Cementite
Flakes

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Engineering Materials
The usual composition of a soldering alloy is

Tin, lead and silver
Tin, lead and small percentage of antimony
Tin and copper
Tin and lead

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Engineering Materials
The surface hardness of the following order is achieved by nitriding operation

1000 to 1100 VPN
250 VPN
600 VPN
1500 VPN

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Engineering Materials
German silver is an alloy of

Refined silver
Nickel, Copper and zinc
Silver and some impurities
Nickel and copper

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Engineering Materials
The crystal structure of brass is

H.C.P.
Orthorhombic crystalline structure
F.C.C.
C.C.

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Engineering Materials
Weld decay is the phenomenon found with

Cast iron
Stainless steel
Mild steel
Nonferrous materials

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MORE MCQ ON Engineering Materials

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