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

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)

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

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

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 which of the following cases, there exists the situation of Pure Bending in some part of the beam or along the entire beam? i) A simply supported beam subjected to two equally spaced downward concentrated loads ii) A simply supported beam subjected to two equally spaced opposite moments iii) A cantilever beam subjected to clockwise moment at free end iv) An overhanging beam with both side overhangs subjected to different concentrated loads at both the free ends

A

(i) and (iv)

B

(i), (ii) and (iv)

C

(i), (ii) and (iii)

D

(i) and (iii)

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

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

Consider the undirected graph below: Using Prim's algorithm to construct a minimum spanning tree starting with node a, which one of the following sequences of edges represents a possible order in which the edges would be added to construct the minimum spanning tree?

A

(a, b), (b, h), (g, h), (f, g), (c, f), (c, i), (c, d), (d, e)

B

(a, b), (b, h), (g, h), (g, i), (c, i), (c, f), (c, d), (d, e)

C

(a, b), (b, c), (c, i), (c, f), (f, g), (g, h), (c, d), (d, e)

D

(a, b), (g, h), (g, f), (c, f), (c, i), (f, e), (b, c), (d, e)

A reinforced concrete beam is subjected to 5 kNm bending moment due to dead load and 25 kNm bending moment due to live load. What should be the design bending moment for limit state of collapse?

A

30.0 kN.m

B

34.5 kN.m

C

45.0 kN.m

D

50.0 kN.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

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

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