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Engineering Materials

Engineering Materials
Ball bearings are, usually, made from

High carbon steel
Medium carbon steel
Low carbon steel
Chrome steel

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Engineering Materials
Weld decay is the phenomenon found with

Cast iron
Stainless steel
Nonferrous materials
Mild steel

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Engineering Materials
Pearlite consists of

13% cementite and 87% ferrite
13% ferrite and 87% cementite
13% carbon and 87% ferrite
6.67% carbon and 93.33% iron

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

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

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

250 VPN
600 VPN
1500 VPN
1000 to 1100 VPN

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Engineering Materials
Induction hardening is basically a

Core hardening process
Surface hardening process
None of these
Carburising process

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