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MATERIALS AND CONSTRUCTION

Materials and Construction
Alpha iron is stable __________ °C.

Above 1800
Upto 910
Between 910 & 1403
Above 1403

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Materials and Construction
__________ iron is produced, when molten pig iron is allowed to cool gradually.

Wrought
White cast
None of these
Grey cast

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Materials and Construction
Which of the following is not a nickel based alloy?

Hastelloys
Inconel
Babbit metal
Nimonics

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Materials and Construction
Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing.

Arsenic
Oxygen
Bismuth
Antimony

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Materials and Construction
Maximum consumption of lead is in the manufacture of

Electric cable sheathing
Lead lined vessels
Storage batteries
Solder alloys

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