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In order to protect the beam against corrosion, a minimum cover of

[A].	50 mm	[B].	100 mm
[C].	150 mm	[D].	200 mm

Answer: Option B

Maaz said:

NO, its not true, Concrete cover for beams is equal to 25 mm for main bars and 20 mm for stirrups and that for slabs is equal to 15 mm, when concrete is not exposed to weather or in contact with ground.