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Q: The perpendicular distance between the intrados and extrados of an arch is called
  • A. Pitch of an arch
  • B. Depth of an arch
  • C. Width of an arch
  • D. Thickness of an arch
Correct Answer: Option B - The perpendicular distance between the intrados and extrados of an arch is called depth of an arch. Rise of arch– The clear vertical distance between the highest point on the intrados and the springing line is called as rise. Thickness of arch– This is the breadth of soffit which is measured perpendicular to the front and back faces an arch.
B. The perpendicular distance between the intrados and extrados of an arch is called depth of an arch. Rise of arch– The clear vertical distance between the highest point on the intrados and the springing line is called as rise. Thickness of arch– This is the breadth of soffit which is measured perpendicular to the front and back faces an arch.

Explanations:

The perpendicular distance between the intrados and extrados of an arch is called depth of an arch. Rise of arch– The clear vertical distance between the highest point on the intrados and the springing line is called as rise. Thickness of arch– This is the breadth of soffit which is measured perpendicular to the front and back faces an arch.