WorksheetsTwo-Way Slab
Total questions: 15
Worksheet time: 3mins
A slab supported on all four sides behaves as a two-way slab when:
Ly / Lx ≥ 2
Ly / Lx < 2
Ly = 2Lx
Ly = 3Lx
In a two-way slab, load is transferred:
Only in shorter span direction
Only in longer span direction
In both directions
Directly to columns
The bending of a two-way slab occurs:
In one direction only
Along the diagonal only
In both perpendicular directions
Only at the supports
In two-way slab design, which span is used to calculate the span to effective depth ratio?
Longer span
Shorter span
Average span
Diagonal span
In a two-way slab, reinforcement is provided:
Only along shorter span
Only along longer span
Equally in both directions
In both directions, but more along shorter span
In a two-way slab, the bars in the shorter span direction are generally placed:
Above the longer span bars
Below the longer span bars
Alternately
At corners only
In a two-way slab, which reinforcement is considered as main reinforcement?
Bars in longer direction only
Bars in shorter direction only
Bars in both directions
Diagonal bars
The spacing of reinforcement in the shorter span direction of a two-way slab is:
Greater than longer span direction
Equal to longer span direction
Less than longer span direction
Zero
The basic value of overall depth (D) is approximately taken as:
Shorter span / 20
Shorter span / 25
Shorter span / 30
Shorter span/ 35
In a two-way slab, positive bending moment occurs mainly at:
Supports
Corners
Mid-span
Columns
In a two-way slab, negative bending moment occurs mainly at:
Mid-span
Supports
Centre of slab
Diagonal
As per typical detailing, about 50% of mid-span steel in a two-way slab is extended into supports for a length of:
0.05 L
0.10 L
0.15 L
0.25 L
In practical RCC construction, slab reinforcement is placed near the bottom at mid-span mainly because:
Concrete is weak in compression
Steel is weak in tension
Tensile stress develops at the bottom due to positive bending
Shear force is maximum at mid-span
In a two-way slab, cranking of bars is mainly done to resist:
Shear force
Torsion
Negative bending moment
Temperature stress
Which of the following slabs will definitely behave as a two-way slab?
Rectangular slab supported on two sides
Slab with Ly / Lx ≥ 2
Square slab supported on all four sides
Cantilever slab
