Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by

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

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

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)

Seven people A, B, C, D, E, F and G live on separate floors of a 7-floor building. Ground floor is numbered 1, first floor is numbered. 2 and so on until the topmost floor is numbered 7. Each one of these having a different cars-Cadillac, Ambassador, Fiat, Maruti, Mercedes, Bedford and Fargo but not necessarily in the same order. Only three people live above the floor on which A lives. Only one person lives between A and the one having a car Cadillac. F lives immediately below the one having a car Bedford. The one having a car Bedford lives on an even-numbered floor. Only three people live between the ones having a car Cadillac and Maruti. E lives immediately above C. E is not having a car Maruti. Only two people live between B and the one having a car Fargo. The one having a car Fargo lives below the floor on which B lives. The one having a car Fiat does not live immediately above D or immediately below B. D does not live immediately above or immediately below A. G does not have a car Ambassador. Question : How many people live between the floors on which D and the one having a car Bedford ?

A

One

B

Two

C

Three

D

Four

If l₁ and l₂ are the lengths of long and short spans of a two way slab simply supported on four edges and carrying a load w per unit area, the ratio of the loads split into w₁ and w₂ acting on strips parallel to l₂ and l₁ is

A

w₁/w₂ = l₂/l₁

B

w₁/w₂ = (l₂/l₁)²

C

w₁/w₂ = (l₂/l₁)³

D

w₁/w₂ = (l₂/l₁)⁴

If $${{l_1}}$$ and $${{l_2}}$$ are the lengths of long and short spans of a two way slab simply supported on four edges and carrying a load w per unit area, the ratio of the loads split into w₁ and w₂ acting on strips parallel to $${{l_2}}$$ and $${{l_1}}$$ is

A

$$\frac{{{{\text{w}}_1}}}{{{{\text{w}}_2}}} = \frac{{{l_2}}}{{{l_1}}}$$

B

$$\frac{{{{\text{w}}_1}}}{{{{\text{w}}_2}}} = {\left( {\frac{{{l_2}}}{{{l_1}}}} \right)^2}$$

C

$$\frac{{{{\text{w}}_1}}}{{{{\text{w}}_2}}} = {\left( {\frac{{{l_2}}}{{{l_1}}}} \right)^3}$$

D

$$\frac{{{{\text{w}}_1}}}{{{{\text{w}}_2}}} = {\left( {\frac{{{l_2}}}{{{l_1}}}} \right)^4}$$

Naresh is a visually challenged student of his class. He identifies and count edges, corners and faces of various three dimensional (3D) shapes by touching them. How many edges, corners and faces will he identify in a triangular prism?

A

Edges = 6, Corners = 8, Faces = 6

B

Edges = 9, Corners = 6, Faces = 5

C

Edges = 4, Corners = 4, Faces = 4

D

Edges = 6, Corners = 4, Faces = 5

A plane slab of thickness 60 cm is made of a material of thermal conductivity k = 17.45 W/m K. Let us assume that one side of the slab absorbs a net amount of radiant energy at the rate q = 530.5 watt/m2. If the other face of the slab is at a constant temperature t2 = 38 degree Celsius. Comment on the temperature with respect to the slab?

A

87.5 degree Celsius

B

32 degree Celsius

C

47.08 degree Celsius

D

32.87 degree Celsius

Which of the following statements are correct regarding Westergard’s concept for temperature stresses? 1. During the day, the top of the pavement slab gets heated under the sunlight when the bottom of the slab becomes hot 2. During summer season as the mean temperature of the slab increases, the concrete pavement expands towards the expansion joints 3. Due to frictional force at the interface, compressive stress is developed at the bottom of the slab as it tends to expand.

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

In counterfort type retaining wallsi) the vertical slab is designed as a continuous slabii) the heel slab is designed as a continuous slabiii) the vertical slab is designed as a cantileveriv) the heel slab is designed as a cantileverThe correct answer is

A

(i) and (ii)

B

(i) and (iv)

C

(ii) and (iii)

D

(iii) and (iv)

Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by

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