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Engineering Materials

Engineering Materials
A cold chisel is made of

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

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Engineering Materials
When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.

More than
None of these
Equal to
Less than

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Engineering Materials
An eutectoid steel consists of

Wholly pearlite
Pearlite and ferrite
Pearlite and cementite
Wholly austenite

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Engineering Materials
When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces

Alloy cast iron
Nodular cast iron
Malleable cast iron
White cast iron

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Engineering Materials
Lead is poured into the joint between two pipes. These pipes may be made of

Asbestos cement
Concrete
Cast iron
Vitrified clay

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Engineering Materials
Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio

30 : 70
2.1180555555556
40 : 60
2.9375

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