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Engineering Materials

Engineering Materials
Which of the following alloys does not have copper as one of the constituents?

Nichrome
Delta metal
Constantan
Monel metal

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Engineering Materials
Iron is

Paramagnetic
Ferromagnetic
Ferroelectric
Dielectric

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Engineering Materials
Eutectoid steel contains following percentage of carbon

0.003
0.0002
0.008
0.0063

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Engineering Materials
Free cutting steels

Require minimum cutting force
Contain carbon in free from
Can be cut freely
Is used where rapid machining is the prime requirement

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Engineering Materials
Beryllium bronze contains

99% copper and 1% beryllium
60% copper and 40% beryllium
97.75% copper and 2.25% beryllium
80% copper and 20% beryllium

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

Asbestos cement
Cast iron
Concrete
Vitrified clay

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