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Engineering Materials

Engineering Materials
The hardness of steel increases if it contains

Cementite
Pearlite
Martensite
Austenite

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Engineering Materials
The property of a material due to which it breaks with little permanent distortion, is called

Brittleness
Malleability
Ductility
Plasticity

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Engineering Materials
Manganese is added in low carbon steel to

Raise the yield point
Make the steel ductile and of good bending qualities
Make the steel tougher and harder
All of these

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Engineering Materials
Delta iron occurs at temperature of

Above melting point
Between 910°C and 1400°C
Between 1400°C and 1539°C
Room temperature

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Engineering Materials
The transistor is made of

Germanium
Copper
Gold
Silver

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Engineering Materials
The elastic stress strain behavior of rubber is

No fixed relationship
Linear
Plastic
Nonlinear

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