Correct option is C
True bearing of line T.B = Magnetic beating + Magnetic declination (+ve due to eastward declination)
∴ True Bearing = 180° + 60° = 240°
True bearing of line T.B = Magnetic beating + Magnetic declination (+ve due to eastward declination)
∴ True Bearing = 180° + 60° = 240°
The minimum density (g/cc) of corrugated and semi-corrugated asbestos cement sheets considered acceptable for construction purposes by the Indian standard is: