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Engineering Materials

Engineering Materials
Which of the following has a fine gold colour and is used for imitation jewellery?

Babbitt metal
Aluminium bronze
Silicon bronze
Gun metal

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Engineering Materials
Which of the following element results in presence of free graphite in C.I.?

Manganese
Carbon
Sulphur
Silicon

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Engineering Materials
In grey cast iron, carbon is present in the form of

Spheroids
Free carbon
Cementite
Flakes

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Engineering Materials
The ratio of the volume occupied by the atoms to the total volume of the unit cell is called

Coordination number
Atomic packing factor
Space lattice
None of these

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Engineering Materials
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as

Heat treatment
Allotropic change
Precipitation
Recrystallization

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Engineering Materials
Solder is an alloy consisting of

Lead and zinc
Tin and lead
Tin, antimony, copper
Tin and copper

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