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Engineering Materials

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

0.01
0.008
0.005
0.002

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Engineering Materials
Nickel when added to copper improves

Strength and ductility
Machinability
Hardness
Hardness and strength

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Engineering Materials
Slow plastic deformation of metals under a constant stress is known as

Creep
Fatigue
Plastic deformation
Endurance

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Engineering Materials
Gamma-iron occurs between the temperature ranges of

1400°C to 1530°C
900°C to 1400°C
400°C to 600°C
600°C to 900°C

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Engineering Materials
In which of the following cases, consideration of creep is important

Cast iron pipes
Flywheel of steam engine
Cycle chains
Gas turbine blades

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Engineering Materials
Acidic solution is one which has pH value

Equal to 7
Greater than 7
pH value has nothing to do with neutral solution
Less than 7

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