Building Construction
The depth of an arch is the distance between

Crown and ground level
Crown and springing line
Ground level and springing line
Intrados and extrados

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Building Construction
Two columns 50 cm × 50 cm and 60 cm × 60 cm carry 80 tonnes and 120 tonnes of loads respectively. The centre to centre distance between columns is 5.00 metres. The permissible bearing capacity of the soil is 20 t/m2. If the footing is not to project more than 25 cm beyond the outside of the smaller column, pick up the correct design parameters of the footing from the following:

G. of the loads from the smaller column = 3.00 m
The length of the foundation slab = 7.00 m
All listed here
Area of footing slab = 11.00 m2
Distance of

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