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

A

25

B

30

C

35

D

40

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)

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

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

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

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

A

Italy

B

Iran

C

India

D

Japan

Consider a slab of thickness δ with one side (x = 0) insulated and other side (x = δ) maintained at constant temperature. The rate of uniform heat generation within the slab is q g W/m3. Presuming that the heat conduction is in steady state and one dimensional along x direction, the maximum temperature in the slab would occur at x equal

A

δ/2

B

Zero

C

δ/4

D

δ

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

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

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

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