MCQOPTIONS
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MCQOPTIONS
This section includes 112 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. |
_Shear buckling of web in a plate girder is prevented by using$? |
| A. | vertical intermediate stiffener |
| B. | horizontal stiffener at neutral axis |
| C. | bearing stiffener |
| D. | none of the above |
| Answer» B. horizontal stiffener at neutral axis | |
| 52. |
_If the thickness of plate to be connected by a rivet is 16 mm, then suitable size of rivet as per Unwin’s formula will be$? |
| A. | 16 mm |
| B. | 20 mm |
| C. | 24 mm |
| D. | 27 mm |
| Answer» D. 27 mm | |
| 53. |
_Area of openings for buildings of large permeability is more than$? |
| A. | 10% of wall area |
| B. | 20% of wall area |
| C. | 30% of wall area |
| D. | 50% of wall area |
| Answer» C. 30% of wall area | |
| 54. |
_The mechanism method of plastic analysis satisfies$? |
| A. | equilibrium and mechanism conditions |
| B. | equilibrium and plastic moment conditions |
| C. | mechanism and plastic moment conditions |
| D. | equilibrium condition only |
| Answer» B. equilibrium and plastic moment conditions | |
| 55. |
_Bolts are most suitable to carry$? |
| A. | shear |
| B. | bending |
| C. | axial tension |
| D. | shear and bending |
| Answer» D. shear and bending | |
| 56. |
_In moment resistant connections, the moment resistance of riveted connection depends upon$? |
| A. | Shear in rivets |
| B. | Compression in rivets |
| C. | Tension in rivets |
| D. | Strength of rivets in bearing |
| Answer» D. Strength of rivets in bearing | |
| 57. |
_According to IS Specifications, the maximum pitch of rivets in compression is (where t is thickness of thinnest outside plate or angle)$? |
| A. | lesser of 200 mm and 12 t |
| B. | lesser of 200 mm and 161 |
| C. | lesser of 300 mm and 32 t |
| D. | lesser of 3 00 mm and 24 t |
| Answer» B. lesser of 200 mm and 161 | |
| 58. |
_The best arrangement to provide unified behaviour in built up steel columns is by$? |
| A. | lacing |
| B. | battening |
| C. | tie plates |
| D. | perforated cover plates |
| Answer» B. battening | |
| 59. |
_Economical depth of a plate girder corresponds to$? |
| A. | minimum weight |
| B. | minimum depth |
| C. | maximum weight |
| D. | minimum thickness of web |
| Answer» B. minimum depth | |
| 60. |
_Gantry girders are designed to resist$? |
| A. | lateral loads |
| B. | longitudinal loads and vertical loads |
| C. | lateral, longitudinal and vertical loads |
| D. | lateral and longitudinal loads |
| Answer» D. lateral and longitudinal loads | |
| 61. |
_Bearing stiffener in a plate girder is used to$? |
| A. | transfer the load from the top flange to the bottom one |
| B. | prevent buckling of web |
| C. | decrease the effective depth of web |
| D. | prevent excessive deflection |
| Answer» C. decrease the effective depth of web | |
| 62. |
The internal pressure coefficient on walls for buildings with large permeability is taken as$? |
| A. | ± 0.2 |
| B. | ±0.5 |
| C. | ± 0.7 |
| D. | 0 |
| Answer» D. 0 | |
| 63. |
Hudson’s formula gives the dead weight of a truss bridge as a function of$? |
| A. | bottom chord area |
| B. | top chord area |
| C. | effective span of bridge |
| D. | heaviest axle load of engine |
| Answer» B. top chord area | |
| 64. |
The slenderness ratio of a column supported throughout its length by a masonry wall is$? |
| A. | zero |
| B. | 10 |
| C. | 100 |
| D. | infinity |
| Answer» B. 10 | |
| 65. |
To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be$? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 66. |
Efficiency of a riveted joint, having the minimum pitch as per IS : 800, is$? |
| A. | 40% |
| B. | 50% |
| C. | 60% |
| D. | 70% |
| Answer» D. 70% | |
| 67. |
The maximum permissible span of asbestos cement sheets is$? |
| A. | 650 mm |
| B. | 810 mm |
| C. | 1250 mm |
| D. | 1680 mm |
| Answer» E. | |
| 68. |
The bracing provided in the plane of end posts is called$? |
| A. | sway bracing |
| B. | portal bracing |
| C. | top lateral bracing |
| D. | bottom lateral bracing |
| Answer» C. top lateral bracing | |
| 69. |
Select the correct statement$? |
| A. | Material cost of a rivet is higher than that of a bolt |
| B. | Tensile strength of a bolt is lesser than that of a rivet |
| C. | Bolts are used as a temporary fastening whereas rivets are used as permanent fastenings |
| D. | Riveting is less noisy than bolting |
| Answer» D. Riveting is less noisy than bolting | |
| 70. |
The web crippling due to excessive bearing stress can be avoided by$? |
| A. | increasing the web thickness |
| B. | providing suitable stiffeners |
| C. | increasing the length of the bearing plates |
| D. | none of the above |
| Answer» D. none of the above | |
| 71. |
Other conditions being same, the load factor in indeterminate structures is$? |
| A. | Equal to load factor in determinate structures |
| B. | More than the load factor in determinate structures |
| C. | Less than the load factor in determinate structures |
| D. | Unpredictable |
| Answer» C. Less than the load factor in determinate structures | |
| 72. |
The minimum thickness of plates in a steel stack should be? |
| A. | 4 mm |
| B. | 5 mm |
| C. | 6 mm |
| D. | 8 mm |
| Answer» D. 8 mm | |
| 73. |
In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate? |
| A. | Fully by direct bearing |
| B. | Fully through fastenings |
| C. | 50% by direct bearing and 50% through fastenings |
| D. | 75% by direct bearing and 25% through fastenings |
| Answer» D. 75% by direct bearing and 25% through fastenings | |
| 74. |
Shape factor is a property which depends? |
| A. | only on the ultimate stress of the material |
| B. | only on the yield stress of the material |
| C. | only on the geometry of the section |
| D. | both on the yield stress and ultimate stress of material |
| Answer» D. both on the yield stress and ultimate stress of material | |
| 75. |
For rivets in tension with counter-sunk heads, the tensile value shall be? |
| A. | reduced by 25 % |
| B. | reduced by 33.3% |
| C. | increased by 25 % |
| D. | increased by 33.3 % |
| Answer» C. increased by 25 % | |
| 76. |
The statical method of plastic analysis satisfies? |
| A. | equilibrium and mechanism conditions |
| B. | equilibrium and plastic moment conditions |
| C. | mechanism and plastic moment conditions |
| D. | equilibrium condition only |
| Answer» C. mechanism and plastic moment conditions | |
| 77. |
The slenderness ratio of lacing bars should not exceed? |
| A. | 100 |
| B. | 120 |
| C. | 145 |
| D. | 180 |
| Answer» D. 180 | |
| 78. |
The mechanism method and the statical method give? |
| A. | lower and upper bounds respectively on the strength of structure |
| B. | upper and lower bounds respectively on the strength of structure |
| C. | lower bound on the strength of structure |
| D. | upper bound on the strength of structure |
| Answer» C. lower bound on the strength of structure | |
| 79. |
compression force in two end posts The pin of a rocker bearing in a bridge is designed for? |
| A. | bearing and shear |
| B. | bending and shear |
| C. | bearing and bending |
| D. | bearing, shear and bending |
| Answer» E. | |
| 80. |
Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is? |
| A. | 5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 81. |
The risk coefficient k, depends on? |
| A. | mean probable design life of structures |
| B. | basic wind speed |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» D. none of the above | |
| 82. |
The bracing between two columns of a steel tank will be designed to resist? |
| A. | horizontal shear due to wind or earthquake only |
| B. | horizontal, shear due to wind or earthquake + 2.5% of column loads |
| C. | column loads + 2.5% of horizontal shear due to wind or earthquake |
| D. | column loads + full horizontal shear due to wind or earthquake |
| Answer» C. column loads + 2.5% of horizontal shear due to wind or earthquake | |
| 83. |
The centrifugal force due to curvature of track is assumed to act on the bridge at a height of? |
| A. | 1.23 m above the rail level |
| B. | 1.50 m above the rail level |
| C. | 1.83 m above the rail level |
| D. | 2.13 m above the rail level |
| Answer» D. 2.13 m above the rail level | |
| 84. |
The sway bracing is designed to transfer |
| A. | 2Vi % of the top panel wind load to bottom bracing |
| B. | 10% of the top panel wind load to bottom bracing |
| C. | 25% of the top panel wind load to bottom bracing |
| D. | 50% of the top panel wind load to bottom bracing |
| Answer» E. | |
| 85. |
When the axis of load lies in the plane of rivet group, then the rivets are subjected to |
| A. | only shear stresses |
| B. | only tensile stresses |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» B. only tensile stresses | |
| 86. |
The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is |
| A. | 1.0 mm |
| B. | 1.5 mm |
| C. | 2.0 mm |
| D. | 2.5 mm |
| Answer» C. 2.0 mm | |
| 87. |
A circular column section is generally not used in actual practice because |
| A. | it is uneconomical |
| B. | it cannot carry the load safely |
| C. | it is difficult to connect beams to the round sections |
| D. | all of the above |
| Answer» D. all of the above | |
| 88. |
Pitch of tacking rivets, when double angles connected back to back and acting as tension members should not be more than |
| A. | 500 mm |
| B. | 600 mm |
| C. | 1000 mm |
| D. | 300 mm |
| Answer» D. 300 mm | |
| 89. |
By providing sufficient edge distance, which of the following failures of riveted joint can be avoided ? |
| A. | tension failure of the plate |
| B. | shear failure of the rivet |
| C. | shear failure of the plate |
| D. | crushing failure of the rivet |
| Answer» D. crushing failure of the rivet | |
| 90. |
A butt weld is specified by |
| A. | effective throat thickness |
| B. | plate thickness |
| C. | size of weld |
| D. | penetration thickness |
| Answer» B. plate thickness | |
| 91. |
Study the following statements.i) Top lateral bracing prevents the sidesway buckling of the chord.ii) Sway bracing keeps the rectangular shape of the bridge cross-section.iii) Sway bracing transfers the load from top of end posts to bearings.The correct answer is |
| A. | only (i) |
| B. | both (i) and (ii) |
| C. | both (i) and (iii) |
| D. | all (i), (ii) and (iii) |
| Answer» C. both (i) and (iii) | |
| 92. |
The ratio of plastic section modulus to elastic section modulus |
| A. | is equal to 1 |
| B. | is always less than 1 |
| C. | is always greater than 1 |
| D. | can be less than 1 |
| Answer» D. can be less than 1 | |
| 93. |
The allowable tensile stress in structural mild steel plates for steel tank is assumed as |
| A. | 95.0 MPa on net area |
| B. | 105.5 MPa on net area |
| C. | 105.5 MPa on gross area |
| D. | 150.0 MPa on gross area |
| Answer» C. 105.5 MPa on gross area | |
| 94. |
Steel tanks are mainly designed for |
| A. | weight of tank |
| B. | wind pressure |
| C. | water pressure |
| D. | earthquake forces |
| Answer» D. earthquake forces | |
| 95. |
In the virtual work method, the virtual quantity is |
| A. | Displacement |
| B. | Load |
| C. | Slope |
| D. | Moment |
| Answer» B. Load | |
| 96. |
In the cross-section of a weld, throat is the |
| A. | minimum dimension |
| B. | average dimension |
| C. | maximum dimension |
| D. | none of the above |
| Answer» B. average dimension | |
| 97. |
The effective length of a battened column is increased by |
| A. | 5% |
| B. | 10% |
| C. | 15% |
| D. | 20% |
| Answer» C. 15% | |
| 98. |
The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is |
| A. | 150 |
| B. | 180 |
| C. | 250 |
| D. | 350 |
| Answer» D. 350 | |
| 99. |
Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds (where t is thickness of web) |
| A. | 50 t |
| B. | 85 t |
| C. | 200 t |
| D. | 250 t |
| Answer» C. 200 t | |
| 100. |
According to IS Specifications, the effective length of a column effectively held in position at both ends and restrained in direction at one end is taken as |
| A. | 0.67 L |
| B. | 0.8 L |
| C. | L |
| D. | 1.5 L |
| Answer» C. L | |