Building Construction
Gravels

Never swell when they come into contact with water
Are cohesionless aggregates
Vary in size between 2 to 20 mm
All listed here

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Building Construction
Depth or height of the arch is the

Vertical distance between springing line and intrados
None of these
Perpendicular distance between intrados and extrados
Perpendicular distance between springing line and extrados

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