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Engineering Materials

Engineering Materials
High carbon steel carries carbon percentage

0.3 to 0.6%
0.8 to 1.5%
0.6 to 0.8%
0.1 to 0.3%

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Engineering Materials
Which of the following metal shrinks most from molten state to solid state?

Admiralty metal
Brass
Cast steel
Cast iron

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Engineering Materials
The silicon steel is widely used for

Cutting tools
Generators and transformers in the form of laminated cores
Motor car crankshafts
Connecting rods

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Engineering Materials
A cold chisel is made of

Mild steel
H.S.S.
High carbon
Cast iron

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Engineering Materials
The hardness of steel increases if it contains

Austenite
Cementite
Pearlite
Martensite

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Engineering Materials
A material is said to be allotropic, if it has

Different crystal structures at different temperatures
Any one of the above
Atoms distributed in random pattern
Fixed structure at all temperatures

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