Building Materials
During pudding

Silicon forms a slag
Carbon is converted into carbonic acid gas
All listed here
Molten metal is kept clear of the fuel

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Building Materials
Veneering means

Carving out designs on timber planks
Chemically treating timber planks
Thin layer of superior wood glued to inferior wood
Thick layer of superior wood glued to inferior wood

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Building Materials
Assertion A : Pure lime takes a long time to develop adequate strength.Reason R : Pure lime has slow hardening characteristics.Select your answer according to the coding system given below:

Both A and R is true and R is correct explanation of A
A is false but R is true
Both A and R is true and R is not a correct explanation of A
A is true but R is false

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