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WorkShop Calculation and Science
Module - 3: MATERIAL SCIENCE
Set 5
Set 5
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Q12873
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What is the ore of aluminium?
A
Hematite
B
Mallatite
C
Bauxite
D
Lemonite
Q12874
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Which property of a metal enables it by which it can be drawn out into wires under tension without rupture?
A
Ductility
B
Malleability
C
Hardness
D
Brittleness
Q12875
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Which among the following is an insulator?
A
Copper
B
Aluminium
C
Silver
D
Mica
Q12876
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Which rubber is used as insulator for power cables and control wires?
A
Butyl
B
Hypalone
C
Silicon
D
Nitrite butadiene
Q12877
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Which alloy steel is used to make permanent magnets?
A
Silicon steel
B
Manganese steel
C
Vanadium steel
D
Cobalt steel
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