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Engineering Materials

Engineering Materials
Which of the following property is desirable in parts subjected to shock and impact loads?

Toughness
Stiffness
Strength
Brittleness

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Engineering Materials
Beryllium bronze contains

80% copper and 20% beryllium
97.75% copper and 2.25% beryllium
60% copper and 40% beryllium
99% copper and 1% beryllium

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Engineering Materials
Eutectoid reaction occurs at

600°C
1493°C
723°C
1147°C

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Engineering Materials
When low carbon steel is heated up to lower critical temperature

The grain size first increases and then decreases very rapidly
The grain size increases very rapidly
There is no change in grain size
The average grain size is a minimum

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Engineering Materials
The aluminium alloy, mainly used, for anodized utensil manufacture, is

Duralumin
Magnalium
Hindalium
Y-alloy

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Engineering Materials
Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

Phosphor bronze
Babbitt metal
Nichrome
Monel metal

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