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Materials and Construction

Materials and Construction
Which of the following is the easiest to bend?

Stainless steel
Steel
Cast iron
Wrought iron

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Materials and Construction
A hardened steel essentially contains

Sorbite
Troostite
Martensite
None of these

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Materials and Construction
A bearing metal should not have

Enough plasticity
Low co-efficient of friction
Low thermal conductivity
High toughness

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Materials and Construction
Graphite is corroded by

Hydrochloric acid
None of these
Sulphuric acid (10%)
Sea water

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Materials and Construction
Nitriding of steel is a process for

Annealing
Normalising
Case hardening
Spheroidising

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Materials and Construction
Carbon percentage is the same in cast iron and

Wrought iron
Mild steel
Pig iron
High silicon (14%) iron

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