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Engineering Materials

Engineering Materials
Cemented carbide tools are not found to be suitable for cutting

Cast iron
Steel
Aluminium
Brass

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Engineering Materials
Shock resistance of steel is increased by adding

Chromium
Nickel and chromium
Sulphur, lead and phosphorus
Nickel

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Engineering Materials
Chilled cast iron has

A very high percentage of graphite
No graphite
A low percentage of graphite
Graphite as its basic constituent of composition

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Engineering Materials
Which is false statement about normalizing? Normalizing is done to

Improve mechanical properties
Induce stresses
Refine grain structure
Reduce segregation in casting

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Engineering Materials
Which of the following is used for bearing liner?

Bell metal
Gun metal
Babbitt metal
Bronze

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Engineering Materials
Bronze contains

90% copper and 10% tin
70 - 75% copper and rest tin
85 - 92% copper and rest tin with little lead and nickel
70% copper and 30% zinc

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