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Materials and Construction

Materials and Construction
Mild steel is a/an __________ steel.

Low carbon
High carbon
Medium carbon
High alloy

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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

Dilute HC₁
Acetic acid
v
None of these

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Materials and Construction
Cast iron detachable joint is used in __________ pipes.

Steel
Cast iron
Reinforced cement concrete
Asbestos cement

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Materials and Construction
The largest consumption of zinc for alloys is in the making of

Bearing metal
Brazing solder
Brasses
Die casting alloys

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Materials and Construction
Heavy duty bearings are usually made of

Phosphorous bronze
White metal
Monel
Zinc

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Materials and Construction
Alpha iron is stable __________ °C.

Above 1800
Between 910 & 1403
Upto 910
Above 1403

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