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Materials and Construction

Materials and Construction
Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of

Brass
Copper
Stainless steel
Nickel

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Materials and Construction
Reduction in the grain size reduces the __________ of the material.

Tensile strength
Fatigue resistance
Creep resistance
All of these

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Materials and Construction
Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making

Shafts
Shear blades
Flanges
Gears

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Materials and Construction
The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.

4
8
0.2
2

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Materials and Construction
The electrical conductivity of a __________ decreases with rise in temperature.

Semi-conductor
None of these
Metal/alloy
Dielectric

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Materials and Construction
Which of the following heat treatment processes is used for softening the hardened material?

Annealing
None of these
Tempering
Normalising

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