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Engineering Materials

Engineering Materials
Taps dies and drills contain carbon

Above 2.2%
Above 1%
Below 0.5%
Below 1%

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

Nitriding
Induction hardening
Electroplating
Cyaniding

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Engineering Materials
Iron is

Paramagnetic
Dielectric
Ferroelectric
Ferromagnetic

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Engineering Materials
Tungsten when added to steel __________ the critical temperature.

Lowers
None of these
Raises
Does not effect

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Engineering Materials
Drop forging dies contain carbon of the order of

0.1 to 0.2%
0.7 to 0.9%
0.6 to 0.7%
0.25 to 0.5%

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Engineering Materials
In compression, a prism of brittle material will break

By shearing along oblique plane
By forming a bulge
In direction perpendicular to application of load
By crushing into thousands of pieces

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