The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is

The plan of stairs supported at each end by landings spanning parallel

1.	The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is
A.	3000 mm
B.	4600 mm
C.	4750 mm
D.	6400 mm
Answer» C. 4750 mm

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The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is

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