GATE 2024 AR — Architecture – Question 53

Building Construction, Materials, and Structural Systems · Building construction techniques, methods and details: foundation, plinth, masonry, bonds, fenestrations, arches, scaffolding, formwork, timber/RCC/Steel frame construction, roof and roof covering · 1 mark · Multiple select

Which label combinations correctly describe the arch shown?

Diagram for GATE 2024 AR — Architecture question 53

P extrados; Q key; R span
Q key; S abutment; T rise
P abutment; R rise; T extrados
Q key; S span; T extrados

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Show answer and explanation

Correct answer: (A) P extrados; Q key; R span; (B) Q key; S abutment; T rise

Explanation

P points to the outer arch curve, the extrados; Q identifies the crown keystone; R marks the horizontal span. S identifies the supporting abutment, and T marks vertical rise. Thus A, B. The rise and span have different directions and cannot replace one another.

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