stair

When is a RCC Slab designed as a two-way slab?

• If the slab is continuous over two opposite edges only
• If the slab is unsupported at one edge only
• If the ratio of the spans in two directions is > 2
• If the ratio of the spans in two directions is < 2

In the case of two-way slab, the deflection of slab is

• Primarily function of the long span
• Primarily function of the short span
• Independent of the span
• Mostly long span but sometimes short span

What is the value of minimum reinforcement (In case of Fe 415) in a slab?

• 0.001
• 0.0012
• 0.0015
• 0.002

As per Codal provisions in two slabs, the minimum mild steel reinforcement to be provided in the edge strip is

• Based on minimum bending moment
• Half the area of steel provided in the middle strip in the shorter span
• Half the area of steel provided in the middle strip in the longer span
• 0.15% of the cross-sectional area of concrete

Which one of the following is correct in respect of the material efficiency of RCC flexural elements in rectangular beam, T-beam and two-way slab?

• All the three sections are equally efficient
• T-beam section is most uneconomical
• Two-way slab is most economical
• The efficiency of rectangular section lies between that of T-beam and two-way slab section.

What is the effective span of staircase, supported at each end by landing spanning parallel with the risers, if the width of landing is 2.5 m, width of starting passage is 1.5 m and going of the stair is 2.2 m.

• 6.2m
• 4.2m
• 3.95m
• 4.5m

What is the effective span of staircase, supported at each end by edge of landing slab, which spans parallel, with the risers, if the width of both landing is 2.5 m and going of the stair is 2.2 m.

• 7.2m
• 4.7m
• 4.2m
• 2.2m

What is the effective span of staircase, supported at top and bottom risers by beams having each of 250 mm wide, spanning parallel with the risers, if the width of both landing is 2.5 m and going of the stair is 2.2 m.

• 2.450m
• 9.450m
• 7.2m
• 4.2m

The shown figure represents

• Dog-legged staircase
• Open well staircase
• Straight Staircase
• Turning staircase

The shown figure represents

• Dog-legged staircase
• Open well staircase
• Straight Staircase
• Turning staircase