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Engineering Materials

Engineering Materials
The steel widely used for motor car crankshafts is

Nickel steel
Chrome steel
Silicon steel
Nickel-chrome steel

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Engineering Materials
Perminvar alloy having constant permeability is an alloy of

Iron, zinc and bismuth
Nickel, copper and iron
Nickel, copper and zinc
Copper, nickel and antimony

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Engineering Materials
Ductility of a material can be defined as

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

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Engineering Materials
The metal suitable for bearings subjected to heavy loads, is

Phosphor bronze
Monel metal
White metal
Silicon bronze

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Engineering Materials
In which of the following cases, consideration of creep is important

Flywheel of steam engine
Cycle chains
Cast iron pipes
Gas turbine blades

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Engineering Materials
Induction hardening is basically a

Carburising process
Core hardening process
Surface hardening process
None of these

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