Building Materials
The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is

Greater than 1
Less than 1 in beams but greater than 1 in channels
Less than 1
Equal to 1

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Building Materials
Pick up correct statement from the following:

Fibre boards are used for light weight standing members
Fibre boards are obtained by impregnating a resin product on fibres
Fibre boards are used for thermal and acoustic control
All listed here

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