Rcc Structures Design — Part 2 MCQs with Explanations

One diameter is the correct answer to “Minimum spacing between horizontal parallel reinforcement of the same size should not be less than”. This question is standard in competitive examination syllabi for Rcc Structures Design.

One diameter of thicker bar is the correct answer to “Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than”. This question is standard in competitive examination syllabi for Rcc Structures Design.

$$\frac{{{\text{WL}}}}{{10}}{\left( {{\text{L}} - \frac{{2{\text{D}}}}{3}} \right)^2}$$ is the correct answer to “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”. This question is standard in competitive examination syllabi for Rcc Structures Design.

Twice the diameter is the correct answer to “The radius of a bar bend to form a hook, should not be less than”. This question is standard in competitive examination syllabi for Rcc Structures Design.

2R + T = 60 is the correct answer to “If T and R are tread and rise respectively of a stair, then”. This question is standard in competitive examination syllabi for Rcc Structures Design.

$${\text{h}} = \frac{{\text{W}}}{{{\text{Aw}}}}{\left[ {\frac{{1 - \sin \varphi }}{{1 + \sin \varphi }}} \right]^2}$$ is the correct answer to “If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight 'w' per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

176 cm is the correct answer to “An intermediate T-beam reinforced with two layers of tensile steel with clear cover 13 cm encased with the floor of a hall 12 meters by 7 meters, is spaced at 3 meters from adjoining beams and if the width of the beam is 20 cm, the breadth of the flange is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

All the above is the correct answer to “A part of the slab may be considered as the flange of the T-beam if”. This question is standard in competitive examination syllabi for Rcc Structures Design.

$$\frac{{8{\text{hP}}}}{{{l^2}}}$$ is the correct answer to “If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be”. This question is standard in competitive examination syllabi for Rcc Structures Design.

Are bent down at suitable places to serve as shear reinforcement is the correct answer to “Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam”. This question is standard in competitive examination syllabi for Rcc Structures Design.

All the above is the correct answer to “According to the steel beam theory of doubly reinforced beams”. This question is standard in competitive examination syllabi for Rcc Structures Design.

All the above is the correct answer to “The width of the flange of a T-beam, which may be considered to act effectively with the rib depends upon”. This question is standard in competitive examination syllabi for Rcc Structures Design.

UDL of wall + load from the roof is the correct answer to “An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor level. The lintel is to be designed for self weight plus”. This question is standard in competitive examination syllabi for Rcc Structures Design.

4% is the correct answer to “The maximum area of tension reinforcement in beams shall not exceed”. This question is standard in competitive examination syllabi for Rcc Structures Design.

8.3 kg/cm2 is the correct answer to “An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 meters and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

36 mm diameter is the correct answer to “Lapped splices in tensile reinforcement are generally not used for bars of size larger than”. This question is standard in competitive examination syllabi for Rcc Structures Design.

All the above is the correct answer to “After pre-stressing process is completed, a loss of stress is due to”. This question is standard in competitive examination syllabi for Rcc Structures Design.

10 cm is the correct answer to “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”. This question is standard in competitive examination syllabi for Rcc Structures Design.

All the above is the correct answer to “If the size of a column is reduced above the floor, the main bars of the columns, are”. This question is standard in competitive examination syllabi for Rcc Structures Design.

$${\frac{1}{{30}}^{{\text{th}}}}$$ of span is the correct answer to “For initial estimate for a beam design, the width is assumed”. This question is standard in competitive examination syllabi for Rcc Structures Design.

Modular ratio method is the correct answer to “[A + (m - 1) A SC ] known as equivalent concrete area of R.C.C. is given by”. This question is standard in competitive examination syllabi for Rcc Structures Design.

Is unsafe in shear is the correct answer to “The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6 t/cm 2 , safe shear stress 5 kg/cm 2 and B.M. 24 mt,”. This question is standard in competitive examination syllabi for Rcc Structures Design.

22 mm is the correct answer to “The maximum diameter of a bar used in a ribbed slab, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

All the above is the correct answer to “The advantage of a concrete pile over a timber pile, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

The ratio of spans in two directions is less than 2 is the correct answer to “An R.C.C. roof slab is designed as a two way slab if”. This question is standard in competitive examination syllabi for Rcc Structures Design.

Maximum bending moment is the correct answer to “The amount of reinforcement for main bars in a slab, is based upon”. This question is standard in competitive examination syllabi for Rcc Structures Design.

All the above is the correct answer to “The transverse reinforcements provided at right angles to the main reinforcement”. This question is standard in competitive examination syllabi for Rcc Structures Design.

1.5 is the correct answer to “If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

$$\frac{{{{\text{p}}_1} + {{\text{p}}_2}}}{2} + \frac{{{{\text{p}}_1} - {{\text{p}}_2}}}{2}\cos\,2\theta $$ is the correct answer to “If p 1 and p 2 are mutually perpendicular principal stresses acting on a soil mass, the normal stress on any plane inclined at angle $${\theta ^ \circ }$$ to the principal plane carrying the principal stress p 1 , is:”. This question is standard in competitive examination syllabi for Rcc Structures Design.

$$\frac{1}{3}$$ to $$\frac{2}{3}$$ of rib depth is the correct answer to “The width of the rib of a T-beam, is generally kept between”. This question is standard in competitive examination syllabi for Rcc Structures Design.

0.7 H is the correct answer to “If ‘H’ is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

Width of the stem at the bottom is the correct answer to “The thickness of base slab of a retaining wall generally provided, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

42 diameters from the outer edge of the column is the correct answer to “Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than”. This question is standard in competitive examination syllabi for Rcc Structures Design.

(C - 1) mf + eE is the correct answer to “If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:”. This question is standard in competitive examination syllabi for Rcc Structures Design.

0.15% is the correct answer to “The percentage of minimum reinforcement of the gross sectional area in slabs, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

$$\sqrt {{{\text{R}}^2} + {{\text{T}}^2}} $$ is the correct answer to “If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width”. This question is standard in competitive examination syllabi for Rcc Structures Design.

$$\frac{{{\text{W}}{{\text{R}}^2}}}{{16}}$$ is the correct answer to “If ‘W’ is the uniformly distributed load on a circular slab of radius ‘R’ fixed at its ends, the maximum positive radial moment at its centre, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

53.5 is the correct answer to “The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30° and 2000 kg respectively, the effective width of the stem at the bottom, is”. This question is standard in competitive examination syllabi for Rcc Structures Design.

0.9 is the correct answer to “The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept”. This question is standard in competitive examination syllabi for Rcc Structures Design.

50 is the correct answer to “An R.C.C. column is treated as short column if its slenderness ratio is less than”. This question is standard in competitive examination syllabi for Rcc Structures Design.