RCC Structural Design Mock test – 5 || Civil Engineering Mock tests

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1.

If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80  kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is

1 out of 25
2.

A pre-stressed concrete member

2 out of 25
3.

The shear reinforcement in R.C.C. is provided to resist

3 out of 25
4.

A flat slab is supported

4 out of 25
5.

A pile of length carrying a uniformly distributed load per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be

5 out of 25
6.

The live load to be considered for an inaccessible roof, is

6 out of 25
7.

A foundation is called shallow if its depth, is

7 out of 25
8.

The horizontal portion of a step in a stairs case, is known as

8 out of 25
9.

The number of treads in a flight is equal to

9 out of 25
10.

The amount of reinforcement for main bars in a slab, is based upon

10 out of 25
11.

A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed  load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile  stress of steel is 1400 kg/cm2, the area of steel required, is

11 out of 25
12.

If a rectangular pre-stressed beam of an effective span of 5 meters and carrying a total load 3840  kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be

12 out of 25
13.

The diameter of longitudinal bars of a column should never be less than

13 out of 25
14.

In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at

14 out of 25
15.

An R.C.C. roof slab is designed as a two way slab if

15 out of 25
16.

For stairs spanning horizontally, the minimum waist provided is

16 out of 25
17.

If the average bending stress is 6 kg/cm2 for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is

17 out of 25
18.

The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm2, safe shear stress 5 kg/cm2 and B.M. 24 mt,

18 out of 25
19.

19 out of 25
20.

[A + (m – 1)ASC] known as equivalent concrete area of R.C.C. is given by

20 out of 25
21.

If a bent tendon is required to balance a concentrated load W at the centre of the span L, the central dip h must be at least

21 out of 25
22.

The toe projection of foundation slabs is taken

22 out of 25
23.

The radius of a bar bend to form a hook, should not be less than

23 out of 25
24.

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

24 out of 25
25.

If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is

25 out of 25

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