MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 204 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
*/*_For a ribbed slab? |
| A. | Clear spacing between ribs shall not be greater than 4.5 cm |
| B. | Width of the rib shall not be less than 7.5 cm |
| C. | Overall depth of the slab shall not exceed four times the breadth of the rib |
| D. | All the above |
| Answer» E. | |
| 52. |
*/*_The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called? |
| A. | Balanced section |
| B. | Economic section |
| C. | Critical section |
| D. | All the above |
| Answer» E. | |
| 53. |
*/*_The diameter of longitudinal bars of a column should never be less than? |
| A. | 6 mm |
| B. | 8 mm |
| C. | 10 mm |
| D. | 12 mm |
| Answer» E. | |
| 54. |
*/*_If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is? |
| A. | 1.0 |
| B. | 1.25 |
| C. | 1.5 |
| D. | 2.0 |
| Answer» D. 2.0 | |
| 55. |
*/*_The maximum diameter of a bar used in a ribbed slab, is? |
| A. | 12 mm |
| B. | 6 mm |
| C. | 20 mm |
| D. | 22 mm |
| Answer» E. | |
| 56. |
*/*_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? |
| A. | 51.5 |
| B. | 52.5 |
| C. | 53.5 |
| D. | 54.5 |
| Answer» D. 54.5 | |
| 57. |
*/*_Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than? |
| A. | 42 diameters from the centre of the column |
| B. | 42 diameters from the inner edge of the column |
| C. | 42 diameters from the outer edge of the column |
| D. | 24 diameters from the centre of the column |
| Answer» D. 24 diameters from the centre of the column | |
| 58. |
*/*_The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than? |
| A. | 4 mm |
| B. | 5 mm |
| C. | 6 mm |
| D. | 7 mm |
| Answer» E. | |
| 59. |
*/*_Thickened part of a flat slab over its supporting column, is technically known as? |
| A. | Drop panel |
| B. | Capital |
| C. | Column head |
| D. | None of these |
| Answer» B. Capital | |
| 60. |
*/*_The diameter of the column head support a flat slab, is generally kept? |
| A. | 0.25 times the span length |
| B. | 0.25 times the diameter of the column |
| C. | 4.0 cm larger than the diameter of the column |
| D. | 5.0 cm larger than the diameter of the column |
| Answer» B. 0.25 times the diameter of the column | |
| 61. |
*/*_If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is? |
| A. | 200 cm |
| B. | 300 cm |
| C. | 150 cm |
| D. | 100 cm |
| Answer» D. 100 cm | |
| 62. |
*/*_A part of the slab may be considered as the flange of the T-beam if? |
| A. | Flange has adequate reinforcement transverse to beam |
| B. | It is built integrally with the beam |
| C. | It is effectively bonded together with the beam |
| D. | All the above |
| Answer» E. | |
| 63. |
*/*_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. | WL/12 (L - 2D/3)² |
| B. | WL/10 (L + 2D/3)² |
| C. | WL/10 (L - 2D/3)² |
| D. | WL/12 (L - D/3)² |
| Answer» D. WL/12 (L - D/3)¬¨‚⧠| |
| 64. |
*/*_As per IS : 456, the reinforcement in a column should not be less than? |
| A. | 0.5% and not more than 5% of cross-sectional area |
| B. | 0.6% and not more than 6% of cross-sectional area |
| C. | 0.7% and not more than 7% of cross-sectional area |
| D. | 0.8% and not more than 8% of cross-sectional area |
| Answer» E. | |
| 65. |
*/*_If the permissible compressive stress for a concrete in bending is C kg/m², the modular ratio is? |
| A. | 2800/C |
| B. | 2300/2C |
| C. | 2800/3C |
| D. | 2800/C² |
| Answer» D. 2800/C¬¨‚⧠| |
| 66. |
*/*_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 |
| Answer» E. | |
| 67. |
*/*_The minimum clear cover for R.C.C. columns shall be? |
| A. | Greater of 40 mm or diameter |
| B. | Smaller of 40 mm or diameter |
| C. | Greater of 25 mm or diameter |
| D. | Smaller of 25 mm or diameter |
| Answer» D. Smaller of 25 mm or diameter | |
| 68. |
*/*_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? |
| A. | 5 cm |
| B. | 10 cm |
| C. | 15 cm |
| D. | 20 cm |
| Answer» C. 15 cm | |
| 69. |
*/*_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? |
| A. | Triangular load of the wall |
| B. | UDL of wall |
| C. | UDL of wall + load from the roof |
| D. | Triangular load + load from the roof |
| Answer» D. Triangular load + load from the roof | |
| 70. |
_ In a simply supported slab, alternate bars are curtailed at$? |
| A. | 1/4th of the span |
| B. | 1/5th of the span |
| C. | 1/6th of the span |
| D. | 1/7th of the span |
| Answer» E. | |
| 71. |
_ A flat slab is supported$? |
| A. | On beams |
| B. | On columns |
| C. | On beams and columns |
| D. | On columns monolithically built with slab |
| Answer» E. | |
| 72. |
_ The live load to be considered for an accessible roof, is$? |
| A. | Nil |
| B. | 75 kg/m³ |
| C. | 150 kg/m² |
| D. | 200 kg/cm² |
| Answer» D. 200 kg/cm¬¨‚⧠| |
| 73. |
_ The number of treads in a flight is equal to$? |
| A. | Risers in the flight |
| B. | Risers plus one |
| C. | Risers minus one |
| D. | None of these |
| Answer» D. None of these | |
| 74. |
_ Though the effective depth of a T-beam is the distance between the top compression edge to the centre of the tensile reinforcement, for heavy loads, it is taken as$? |
| A. | 1/8th of the span |
| B. | 1/10th of the span |
| C. | 1/12th of the span |
| D. | 1/16th of the span |
| Answer» D. 1/16th of the span | |
| 75. |
_ The shear reinforcement in R.C.C. is provided to resist$? |
| A. | Vertical shear |
| B. | Horizontal shear |
| C. | Diagonal compression |
| D. | Diagonal tension |
| Answer» E. | |
| 76. |
_ The breadth of a ribbed slab containing two bars must be between$? |
| A. | 6 cm to 7.5 cm |
| B. | 8 cm to 10 cm |
| C. | 10 cm to 12 cm |
| D. | 12 cm to 15 cm |
| Answer» C. 10 cm to 12 cm | |
| 77. |
_ The minimum cube strength of concrete used for a pre-stressed member, is$? |
| A. | 50 kg/cm² |
| B. | 150 kg/cm² |
| C. | 250 kg/cm² |
| D. | 350 kg/cm² |
| Answer» E. | |
| 78. |
_ A foundation rests on$? |
| A. | Base of the foundation |
| B. | Sub-grade |
| C. | Foundation soil |
| D. | Both B and C |
| Answer» E. | |
| 79. |
_ In case the factor of safety against sliding is less than 1.5, a portion of slab is constructed downwards at the end of the heel slab, which is known as$? |
| A. | A key |
| B. | A cut-off wall |
| C. | A rib |
| D. | All the above |
| Answer» E. | |
| 80. |
_ Post tensioning system$? |
| A. | Was widely used in earlier days |
| B. | Is not economical and hence not generally used |
| C. | Is economical for large spans and is adopted now a days |
| D. | None of these |
| Answer» E. | |
| 81. |
_ With usual notations the depth of the neutral axis of a balanced section, is given by$? |
| A. | mc/t = (d - n)/n |
| B. | t/mc = (d - n)/n |
| C. | t/mc = (d + n)/n |
| D. | mc/t = n/(d - n) |
| Answer» E. | |
| 82. |
_ An R.C.C. column is treated as long if its slenderness ratio is greater than$? |
| A. | 30 |
| B. | 35 |
| C. | 40 |
| D. | 50 |
| Answer» E. | |
| 83. |
_ A pile of length ‘L’ carrying a uniformly distributed load ‘W’ per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be$? |
| A. | WL²/15 |
| B. | WL²/30 |
| C. | WL²/60 |
| D. | WL²/90 |
| Answer» E. | |
| 84. |
_ The steel generally used in R.C.C. work, is$? |
| A. | Stainless |
| B. | Mild steel |
| C. | High carbon steel |
| D. | High tension steel |
| Answer» C. High carbon steel | |
| 85. |
_ A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is$? |
| A. | 2.5 |
| B. | 2.0 |
| C. | Less than 2 |
| D. | Less than 2.5 |
| Answer» B. 2.0 | |
| 86. |
_ If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is$? |
| A. | K/x (1 + x/d) + bw |
| B. | Kx (1 - x/l) + bw |
| C. | Kx (1 + x/l) + bw |
| D. | All the above |
| Answer» C. Kx (1 + x/l) + bw | |
| 87. |
_ If jd is the lever arm and ΣO is the total perimeter of reinforcement of an R.C.C. beam, the bond stress at the section having Q shear force, is$? |
| A. | Q/2jdƩO |
| B. | Q/3jdƩO |
| C. | Q/jdƩO |
| D. | 2 × Q/jdƩO |
| Answer» D. 2 ‚àö√≥ Q/jd‚àܬ©O | |
| 88. |
_ If ‘W’ is the load on a circular slab of radius ‘R’, the maximum radial moment at the centre of the slab, is$? |
| A. | WR²/16 |
| B. | 2WR²/16 |
| C. | 3WR²/16 |
| D. | 5WR²/16 |
| Answer» D. 5WR¬¨‚â§/16 | |
| 89. |
_ A circular slab subjected to external loading, deflects to form a$? |
| A. | Semi-hemisphere |
| B. | Ellipsoid |
| C. | Paraboloid |
| D. | None of these |
| Answer» D. None of these | |
| 90. |
_ The maximum shear stress (qmax) in a rectangular beam is$? |
| A. | 1.25 times the average |
| B. | 1.50 times the average |
| C. | 1.75 times the average |
| D. | 2.0 times the average |
| Answer» C. 1.75 times the average | |
| 91. |
_ The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as$? |
| A. | Freyssinet system |
| B. | Magnel-Blaton system |
| C. | C.C.L. standard system |
| D. | Lee-McCall system |
| Answer» E. | |
| 92. |
_ As the percentage of steel increases$? |
| A. | Depth of neutral axis decreases |
| B. | Depth of neutral axis increases |
| C. | Lever arm increases |
| D. | Lever arm decreases |
| Answer» C. Lever arm increases | |
| 93. |
_ Top bars are extended to the projecting parts of the combined footing of two columns L distance apart for a distance of$? |
| A. | 0.1 L from the outer edge of column |
| B. | 0.1 L from the centre edge of column |
| C. | Half the distance of projection |
| D. | One-fourth the distance of projection |
| Answer» C. Half the distance of projection | |
| 94. |
_ As per IS : 1343, total shrinkage for a pre-tensioned beam, is$? |
| A. | 3.0 × 10⁻² |
| B. | 3.0 × 10⁻³ |
| C. | 3.0 × 10⁻⁵ |
| D. | 3.5 × 10⁻⁵ |
| Answer» E. | |
| 95. |
_ Design of R.C.C. cantilever beams, is based on the resultant force at$? |
| A. | Fixed end |
| B. | Free end |
| C. | Mid span |
| D. | Mid span and fixed support |
| Answer» B. Free end | |
| 96. |
_ The transverse reinforcements provided at right angles to the main reinforcement$? |
| A. | Distribute the load |
| B. | Resist the temperature stresses |
| C. | Resist the shrinkage stress |
| D. | All the above |
| Answer» E. | |
| 97. |
_ The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm², safe shear stress 5 kg/cm² and B.M. 24 mt,$? |
| A. | Is safe in shear |
| B. | Is unsafe in shear |
| C. | Is over safe in shear |
| D. | Needs redesigning |
| Answer» C. Is over safe in shear | |
| 98. |
_ 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$? |
| A. | 3WR²/16 |
| B. | 2WR²/16 |
| C. | WR²/16 |
| D. | None of these |
| Answer» D. None of these | |
| 99. |
_ The thickness of base slab of a retaining wall generally provided, is$? |
| A. | One half of the width of the stem at the bottom |
| B. | One-third of the width of the stem at the bottom |
| C. | One fourth of the width of the steam at the bottom |
| D. | Width of the stem at the bottom |
| Answer» E. | |
| 100. |
_ The thickness of the topping of a ribbed slab, varies between$? |
| A. | 3 cm to 5 cm |
| B. | 5 cm to 8 cm |
| C. | 8 cm to 10 cm |
| D. | 12 cm to 15 cm |
| Answer» C. 8 cm to 10 cm | |