Building Construction
Depth or height of the arch is the

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

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Building Construction
In a colar beam roof

There is no horizontal tie beam
There is a horizontal tie at almost the middle of rafters only
There are two horizontal ties, one at the feet and other at the middle of the rafters
There is a horizontal tie at the feet of rafters only

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