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Materials and Construction

Materials and Construction
With increase in the carbon percentage in the steel, its

Hardness increases
All of these
Ductility reduces
Tensile strength increases

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Materials and Construction
Spray dryer for evaporating milk to produce milk powder is made of

Aluminium
Stainless steel
Cast iron
Lead lined steel

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Materials and Construction
For spinning viscose rayon, the extrusion spinnerettes are made of

Nickel
High carbon steel
Platinum or gold alloys
Aluminium

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Materials and Construction
Carbon content in plain carbon steel is __________ percent.

0.1 to 0.15
0.85 to 1.2
0.65 to 0.80
0.35 to 0.45

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Materials and Construction
How many atoms are there per unit cell in a body centred cubic lattice system?

3
4
2
6

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Materials and Construction
The temperature at which new grains are formed in the metal is called the __________ temperature.

Eutectic
Lower critical
Recrystallisation
Upper critical

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