McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .
| 51. |
On an absolutely rigid foundation base, the pressure will |
| A. | Be more at the edges of the foundation |
| B. | Be uniform |
| C. | Not be uniform |
| D. | Be zero at the centre of the foundation |
| Answer» C. Not be uniform | |
| 52. |
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» D. 7 mm | |
| 53. |
For a continuous floor slab supported on beams, the ratio of end span length and intermediate span length, is |
| A. | 0.6 |
| B. | 0.7 |
| C. | 0.8 |
| D. | 0.9 |
| Answer» D. 0.9 | |
| 54. |
In a singly reinforced beam |
| A. | Compression is borne entirely by concrete |
| B. | Steel possesses initial stresses when embedded in concrete |
| C. | Plane sections transverse to the centre line of the beam before bending remain plane after bending |
| D. | Elastic moduli for concrete and steel have different values within the limits of deformation of the beam |
| Answer» C. Plane sections transverse to the centre line of the beam before bending remain plane after bending | |
| 55. |
The ratio of the breadth to effective depth of a beam is kept |
| A. | 0.25 |
| B. | 0.50 |
| C. | 0.70 |
| D. | 0.75 |
| Answer» B. 0.50 | |
| 56. |
A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis |
| A. | Remains within the flange |
| B. | Remains below the slab |
| C. | Coincides the geometrical centre of the beam |
| D. | None of these |
| Answer» A. Remains within the flange | |
| 57. |
The width of the rib of a T-beam, is generally kept between |
| A. | 1/7 to 1/3 of rib depth |
| B. | 1/3 to 1/2 of rib depth |
| C. | 1/2 to 3/4 of rib depth |
| D. | 1/3 to 2/3 of rib depth |
| Answer» D. 1/3 to 2/3 of rib depth | |
| 58. |
For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to |
| A. | 10 |
| B. | 15 |
| C. | 20 |
| D. | 25 |
| Answer» C. 20 | |
| 59. |
If the depth of actual neutral axis of a doubly reinforced beam |
| A. | Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier |
| B. | Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier |
| C. | Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously |
| D. | All the above |
| Answer» D. All the above | |
| 60. |
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» D. 22 mm | |
| 61. |
If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is |
| A. | 10 mm |
| B. | 12 mm |
| C. | 14 mm |
| D. | 16 mm |
| Answer» D. 16 mm | |
| 62. |
Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than |
| A. | One diameter of thinner bar |
| B. | One diameter of thicker bar |
| C. | Twice the diameter of thinner bar |
| D. | None of these |
| Answer» B. One diameter of thicker bar | |
| 63. |
The diameter of main bars in R.C.C. columns, shall not be less than |
| A. | 6 mm |
| B. | 8 mm |
| C. | 10 mm |
| D. | 12 mm |
| Answer» D. 12 mm | |
| 64. |
Dimensions of a beam need be changed if the shear stress is more than |
| A. | 10 kg/cm2 |
| B. | 15 kg/cm2 |
| C. | 20 kg/cm2 |
| D. | 25 kg/cm2 |
| Answer» C. 20 kg/cm2 | |
| 65. |
The effective span of a simply supported slab, is |
| A. | Distance between the centres of thebearings |
| B. | Clear distance between the inner faces of the walls plus twice the thickness of the wall |
| C. | Clear span plus effective depth of the slab |
| D. | None of these |
| Answer» B. Clear distance between the inner faces of the walls plus twice the thickness of the wall | |
| 66. |
The maximum ratio of span to depth of a cantilever slab, is |
| A. | 8 |
| B. | 10 |
| C. | 12 |
| D. | 16 |
| Answer» C. 12 | |
| 67. |
The horizontal portion of a step in a stairs case, is known as |
| A. | Rise |
| B. | Flight |
| C. | Winder |
| D. | Tread |
| Answer» D. Tread | |
| 68. |
An R.C.C. roof slab is designed as a two way slab if |
| A. | It supports live loads in both directions |
| B. | The ratio of spans in two directions is less than 2 |
| C. | The slab is continuous over two supports |
| D. | The slab is discontinuous at edges |
| Answer» B. The ratio of spans in two directions is less than 2 | |
| 69. |
In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at |
| A. | Less loaded column |
| B. | More loaded column |
| C. | A point of the maximum shear force |
| D. | A point of zero shear force |
| Answer» D. A point of zero shear force | |
| 70. |
If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is |
| A. | 40 |
| B. | 45 |
| C. | 50 |
| D. | 55 |
| Answer» D. 55 | |
| 71. |
The radius of a bar bend to form a hook, should not be less than |
| A. | Twice thediameter |
| B. | Thrice thediameter |
| C. | Four times the diameter |
| D. | Five times the diameter |
| Answer» A. Twice thediameter | |
| 72. |
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 |
| A. | 14 cm2 |
| B. | 15 cm2 |
| C. | 16 cm2 |
| D. | 17 cm2 |
| Answer» C. 16 cm2 | |
| 73. |
The amount of reinforcement for main bars in a slab, is based upon |
| A. | Minimum bendingmoment |
| B. | Maximumbendingmoment |
| C. | Maximum shear force |
| D. | Minimum shearforce |
| Answer» B. Maximumbendingmoment | |
| 74. |
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» D. 12 mm | |
| 75. |
Steel beam theory is used for |
| A. | Design of simple steel beams |
| B. | Steel beams encased in concrete |
| C. | Doubly reinforced beams ignoring compressive stress inconcrete |
| D. | Beams if shear exceeds 4 times allowable shear stress |
| Answer» C. Doubly reinforced beams ignoring compressive stress inconcrete | |
| 76. |
In a singly reinforced beam, the effective depth is measured from its compression edge to |
| A. | Tensile edge |
| B. | Tensile reinforcement |
| C. | Neutral axis of the beam |
| D. | Longitudinal centralaxis |
| Answer» A. Tensile edge | |
| 77. |
The minimum number of main steel bars provided in R.C.C. |
| A. | Rectangular columns is 4 |
| B. | Circular columns is 6 |
| C. | Octagonal columns is 8 |
| D. | All the above |
| Answer» D. All the above | |
| 78. |
If the size of a column is reduced above the floor, the main bars of the columns, are |
| A. | Continued up |
| B. | Bent inward at the floor level |
| C. | Stopped just below the floor level and separate lap barsprovided |
| D. | All the above |
| Answer» D. All the above | |
| 79. |
In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called |
| A. | Under-reinforced section |
| B. | Over reinforced section |
| C. | Economic section |
| D. | Critical section |
| Answer» B. Over reinforced section | |
| 80. |
Distribution of shear intensity over a rectangular section of a beam, follows: |
| A. | A circular curve |
| B. | A straight line |
| C. | A parabolic curve |
| D. | An ellipticalcurve |
| Answer» C. A parabolic curve | |
| 81. |
Distribution reinforcement in a simply supported slab, is provided to distribute |
| A. | Load |
| B. | Temperature stress |
| C. | Shrinkage stress |
| D. | All the above |
| Answer» D. All the above | |
| 82. |
Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at |
| A. | Supports |
| B. | Mid span |
| C. | Every section |
| D. | Quarter span |
| Answer» B. Mid span | |
| 83. |
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» D. 50 | |
| 84. |
If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than |
| A. | 4 mm |
| B. | 5 mm |
| C. | 6 mm |
| D. | 8 mm |
| Answer» B. 5 mm | |
| 85. |
The weight of a foundation is assumed as |
| A. | 5% of wallweight |
| B. | 7% of wallweight |
| C. | 10% of wall weight |
| D. | 12% of wall weight |
| Answer» C. 10% of wall weight | |
| 86. |
For M 15 mix concrete, according to I.S. specifications, local bond stress, is |
| A. | 5 kg/cm2 |
| B. | 10 kg/cm2 |
| C. | 15 kg/cm2 |
| D. | 20 kg/cm2 |
| Answer» B. 10 kg/cm2 | |
| 87. |
As per I.S. 456 - 1978, the pH value of water shall be |
| A. | Less than 6 |
| B. | Equal to 6 |
| C. | Not less than 6 |
| D. | Equal to 7 |
| Answer» C. Not less than 6 | |
| 88. |
If diameter of a reinforcement bar is d, the anchorage value of the hook is |
| A. | 4d |
| B. | 8d |
| C. | 12d |
| D. | 16d |
| Answer» D. 16d | |
| 89. |
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» D. 0.5 | |
| 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 theaverage |
| Answer» B. 1.50 times the average | |
| 91. |
Side face reinforcement shall be provided in the beam when depth of the web in a beam exceeds Drop panel |
| A. | 50 cm |
| B. | 75 cm |
| C. | 100 cm |
| D. | 120 cm |
| Answer» B. 75 cm | |
| 92. |
In a slab, the pitch of the main reinforcement should not exceed its effective depth |
| A. | Three times |
| B. | Four times |
| C. | Five times |
| D. | Two times |
| Answer» A. Three times | |
| 93. |
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 |
| Answer» C. 35 | |
| 94. |
By over-reinforcing a beam, the moment of resistance can be increased not more than |
| A. | 10 % |
| B. | 15 % |
| C. | 20 % |
| D. | 25 % |
| Answer» D. 25 % | |
| 95. |
For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed |
| A. | 10 |
| B. | 15 |
| C. | 20 |
| D. | 25 |
| Answer» C. 20 | |
| 96. |
A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis |
| A. | 1/7 to 1/3 of rib depth |
| B. | 1/3 to 1/2 of rib depth |
| C. | 1/2 to 3/4 of rib depth |
| D. | 1/3 to 2/3 of rib depth |
| Answer» D. 1/3 to 2/3 of rib depth | |
| 97. |
A ribbed slab is provided for |
| A. | A plain ceiling |
| B. | Thermal insulation |
| C. | Acousticinsulation |
| D. | All the above |
| Answer» D. All the above | |
| 98. |
A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds |
| A. | 10 |
| B. | 15 |
| C. | 20 |
| D. | 25 |
| Answer» B. 15 | |
| 99. |
The length of lap in tension reinforcement should not be less than the bar diameter × (actual tension / four times the permissible average bond stress) if it is more than |
| A. | 18 bardiameters |
| B. | 24 bardiameters |
| C. | 30 bardiameters |
| D. | 36 bar diameters |
| Answer» C. 30 bardiameters | |
| 100. |
The weight of reinforced concrete, is generally taken as |
| A. | 2200 kg/m3 |
| B. | 2300 kg/m3 |
| C. | 2400 kg/m3 |
| D. | 2500 kg/m3 |
| Answer» C. 2400 kg/m3 | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.