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Engineering Materials

Engineering Materials
The steel widely used for motor car crankshafts is

Silicon steel
Nickel-chrome steel
Chrome steel
Nickel steel

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Engineering Materials
Ductility of a material can be defined as

All of these
Ability to undergo large permanent deformations in compression
Ability to recover its original form
Ability to undergo large permanent deformations in tension

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

Asbestos cement
Vitrified clay
Concrete
Cast iron

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Engineering Materials
Nickel when added to copper improves

Hardness and strength
Strength and ductility
Hardness
Machinability

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Engineering Materials
The ability of a material to resist softening at high temperature is known as

Hot tempering
Creep
Hot hardness
Fatigue

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Engineering Materials
Which is false statement about annealing? Annealing is done to

Relieve stresses
Harden steel slightly
Improve machining characteristic
Soften material

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