The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is

For a slab size 3.5 × 4.5 m subjected to live load 4.5 kN/m2 and effective thickness as 150 mm, determine the short span moment when edges of slab are simply supported and corners are not held down and moment coefficients for short span and long span are 0.0912 and 0.0558. Use M30 concrete and Fe15 steel.

A

10 kNm/m

B

15 kNm/m

C

5 kNm/m

D

2.75 kNm/m

The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is

A

35

B

25

C

30

D

20

In counterfort type retaining walls
i) the vertical slab is designed as a continuous slab
ii) the heel slab is designed as a continuous slab
iii) the vertical slab is designed as a cantilever
iv) the heel slab is designed as a cantilever
The correct answer is

A

(i) and (ii)

B

(i) and (iv)

C

(ii) and (iii)

D

(iii) and (iv)

If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by

A

0.2

B

0.3

C

0.4

D

0.5

Statement I): Torsion reinforcement is provided at (and near) corners in a two-way slab which is simply supported on both edges meeting at the corner. Statement II): The area of reinforcement in each of the layers shall be three-quarters of the area required for maximum mid-span moment in the slab.

A

Both Statement I) and Statement II) are individually true, and Statement II) is the correct explanation of Statement I)

B

Both Statement I) and Statement II) are individually true, but Statement II) is not the correct explanation of Statement I)

C

Statement I) is true, but Statement II) is false

D

Statement I) is false, but Statement II) is true

If the maximum bending moment of a simply supported slab is M Kg.cm, the effective depth of the slab is (where Q is M.R. factor)

A

$$\frac{{\text{M}}}{{100{\text{Q}}}}$$

B

$$\frac{{\text{M}}}{{10\sqrt {\text{Q}} }}$$

C

$$\sqrt {\frac{{\text{M}}}{{\text{Q}}}} $$

D

$$\sqrt {\frac{{\text{M}}}{{100{\text{Q}}}}} $$

Which country has recorded second highest COVID19 death toll in world after China?

A

Italy

B

Iran

C

India

D

Japan

In a ring beam subjected to uniformly distributed load
i) shear force at mid span is zero
ii) shear force at mid span is maximum
iii) torsion at mid span is zero
iv) torsion at mid span is maximum
The correct answer is

A

(i) and (iii)

B

(i) and (iv)

C

(ii) and (iii)

D

(ii) and (iv)

A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be

A

$$\frac{2}{3}$$

B

$$\frac{3}{2}$$

C

$$\frac{5}{8}$$

D

$$\frac{8}{5}$$

If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than

A

$$\frac{{{\text{WL}}}}{{12}}{\left( {{\text{L}} - \frac{{2{\text{D}}}}{3}} \right)^2}$$

B

$$\frac{{{\text{WL}}}}{{10}}{\left( {{\text{L}} + \frac{{2{\text{D}}}}{3}} \right)^2}$$

C

$$\frac{{{\text{WL}}}}{{10}}{\left( {{\text{L}} - \frac{{2{\text{D}}}}{3}} \right)^2}$$

D

$$\frac{{{\text{WL}}}}{{12}}{\left( {{\text{L}} - \frac{{\text{D}}}{3}} \right)^2}$$

The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is

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