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Materials and Construction

Materials and Construction
Cermets are used for making

Abrasives
Cutting tools
Both A & B
Neither A nor B

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Materials and Construction
A material is called 'ductile', if it can be

Hammered to a thin sheet
Fractured without deformation
Drawn into wires
Made lustrous by heating it

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

Dilute HCI
Acetic acid
None of these
Concentrated H₂SO₄

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Materials and Construction
Which of the following has the least carbon percentage?

Wrought iron
Mild steel
Low carbon steel
White cast iron

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Materials and Construction
The carbonating tower used in Solvay process of soda ash manufacture is made of

Stainless steel
Cast iron
Lead lined steel
Karbate

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Materials and Construction
Mercury is transported in metal containers made of

Lead
Aluminium
Iron
Nickel

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