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Materials and Construction

Materials and Construction
The most commonly used resin for making reinforced plastic is

Nylon-6
Polypropylene
Polyurathane
Unsaturated polyester

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Materials and Construction
Diamagnetic materials are magnetised

In a direction opposite to that of the applied field
With eddy currents only
Strongly
Only slightly

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Materials and Construction
An ideal material of construction for the storage of 50% caustic soda solution would be

Monel
High silicon cast iron
Karbate
None of these

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Materials and Construction
Slow and progressive deformation of a material with time under constant stress is called

Erosion
Creep
None of these
Resilience

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Materials and Construction
Lead pipes are not safe for carraying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)₂. Lead pipes are readily corroded by

Acetic acid
None of these
Dilute HC₁
v

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Materials and Construction
Rotary kilns in cement industry are lined with____bricks.

Fireclay
Silica
Lead
High alumina & high magnesia

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