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Engineering Materials

Engineering Materials
Hardness of upper bainite (acicular structure) is about

RC 48
RC 65
RC 80
RC 57

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Engineering Materials
Shock resistance of steel is increased by adding

Sulphur, lead and phosphorus
Nickel and chromium
Nickel
Chromium

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Engineering Materials
The ratio of the volume occupied by the atoms to the total volume of the unit cell is called

Coordination number
Space lattice
None of these
Atomic packing factor

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Engineering Materials
The usual composition of a soldering alloy is

Tin, lead and small percentage of antimony
Tin and copper
Tin and lead
Tin, lead and silver

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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
Monel metal
Nichrome

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Engineering Materials
Heavy duty leaf and coil springs contain carbon of the following order

0.005
0.002
0.01
0.008

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