MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 272 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. |
Effective sectional area of a compression member is: |
| A. | gross sectional area - area of rivet hole |
| B. | gross sectional area + area of rivet hole |
| C. | gross sectional area × area of rivet hole |
| D. | gross sectional area + area of rivet hole |
| Answer» B. gross sectional area + area of rivet hole | |
| 52. |
If the loaded length of span in meters of a railway steel bridge carrying a single track is 6 m, then impact factor is taken as |
| A. | 0 |
| B. | 0.5 |
| C. | between 0.5 and 1.0 |
| D. | 1.0 |
| Answer» D. 1.0 | |
| 53. |
A riveted joint many experience |
| A. | tearing failure of plates |
| B. | splitting failure of plates at the edges |
| C. | bearing failure of rivets |
| D. | all the above |
| Answer» E. | |
| 54. |
Number of rivets required in a joint, is |
| A. | load/shear strength of a rivet |
| B. | load/bearing strength of a rivet |
| C. | load/tearing strength of a rivet |
| D. | load/rivet value |
| Answer» E. | |
| 55. |
To keep the intensity of bearing pressure between the column base and concrete compressive and to vary from zero to 2P/BL, the ratio of the moment M to the axial load P should be |
| A. | l/2 |
| B. | l/3 |
| C. | l/4 |
| D. | l/6 |
| Answer» E. | |
| 56. |
The strength of a riveted lap joint is equal to its |
| A. | shearing strength |
| B. | bearing strength |
| C. | tearing strength |
| D. | least of (a), (b) and (c) |
| Answer» E. | |
| 57. |
For a standard 45° fillet, the ratio of size of fillet to throat thickness is |
| A. | 1 : 1 |
| B. | |
| C. | 2 : 1 |
| Answer» D. | |
| 58. |
When two plates are placed end to end and are joined by two cover plates, the joint is known as |
| A. | lap joint |
| B. | butt joint |
| C. | chain riveted lap joint |
| D. | double cover butt joint |
| Answer» E. | |
| 59. |
The effective length of a battened column is increased by |
| A. | 5 % |
| B. | 10 % |
| C. | 15 % |
| D. | 20 % |
| Answer» C. 15 % | |
| 60. |
The spans are considered approximately equal if the longest span does not exceed the shortest span by more than |
| A. | 5 % |
| B. | 10 % |
| C. | 15 % |
| D. | 20 % |
| Answer» D. 20 % | |
| 61. |
When a tension member is made of four angles with a plate as a web, the allowance for holes is made as |
| A. | two holes for each angle and one hole for the web |
| B. | one hole for each angle and one hole for the web |
| C. | one hole for each angle and two holes for the web |
| D. | two holes for each angle and two holes for the web |
| Answer» D. two holes for each angle and two holes for the web | |
| 62. |
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 | |
| 63. |
If M is the moment due to a couple in a bearing plate whose width is b and allowable bending stress is P, the thickness (t) of the bending plate of the column splice, is |
| A. | t b × p)/6m] |
| B. | t m/(b × p)] |
| C. | t = 6m/bp |
| D. | t m/(b × p) |
| Answer» C. t = 6m/bp | |
| 64. |
Load factor is |
| A. | always equal to factor of safety |
| B. | always less than factor of safety |
| C. | always greater than factor of safety |
| D. | sometimes greater than factor of safety |
| Answer» D. sometimes greater than factor of safety | |
| 65. |
Allowable working stress corresponding to the slenderness ratio of double angles placed back to back and connected to one side of a gusset plate, is reduced to |
| A. | 50 % |
| B. | 60 % |
| C. | 70 % |
| D. | 80 % |
| Answer» E. | |
| 66. |
The number of seismic zones in which the country has been divided is |
| A. | 3 |
| B. | 5 |
| C. | 6 |
| D. | 7 |
| Answer» C. 6 | |
| 67. |
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 % | |
| 68. |
The tensile strength of mild steel for bolts and nuts should not be less than |
| A. | 32 kg/mm2 |
| B. | 36 kg/mm2 |
| C. | 40 kg/mm2 |
| D. | 44 kg/mm2 |
| Answer» E. | |
| 69. |
In double lacing, the thickness t of flat lacing is |
| A. | t < 1/40 th length between inner end rivets |
| B. | t < 1/50 th length between inner end rivets |
| C. | t < 1/60 th length between inner end rivets |
| D. | t < 1/70 th length between inner end rivets |
| Answer» D. t < 1/70 th length between inner end rivets | |
| 70. |
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 | |
| 71. |
The gross diameter of a rivet is the diameter of |
| A. | cold rivet before driving |
| B. | rivet after driving |
| C. | rivet hole |
| D. | none of these |
| Answer» C. rivet hole | |
| 72. |
The internal pressure coefficient on walls for buildings with large permeability is taken as |
| A. | ± 0.2 |
| B. | ±0.5 |
| C. | ± 0.7 |
| Answer» D. | |
| 73. |
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 | |
| 74. |
In case of cantilever fillers, the ratio of the span L to depth d, should not exceed |
| A. | 4 |
| B. | 8 |
| C. | 12 |
| D. | 16 |
| Answer» D. 16 | |
| 75. |
Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between |
| A. | 10° to 30° |
| B. | 30° to 40° |
| C. | 40° to 70° |
| D. | 90° |
| Answer» D. 90° | |
| 76. |
A major beam in a building structure, is known as |
| A. | a girder |
| B. | a floor beam |
| C. | a main beam |
| D. | all the above |
| Answer» E. | |
| 77. |
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 | |
| 78. |
If the depth of the section of an upper column is smaller than the lower column |
| A. | filler plates are provided with column splice |
| B. | bearing plates are provided with column splice |
| C. | filler plates and bearing plates are provided with column splice |
| D. | none of these |
| Answer» E. | |
| 79. |
The moment-curvature relation at a plastic hinge is |
| A. | linear |
| B. | parabolic |
| C. | constant moment for all curvatures |
| D. | constant curvature for all moments |
| Answer» D. constant curvature for all moments | |
| 80. |
The deflection of beams may be decreased by |
| A. | increasing the depth of beam |
| B. | increasing the span |
| C. | decreasing the depth of beam |
| D. | increasing the width of beam |
| Answer» B. increasing the span | |
| 81. |
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 | |
| 82. |
For a cantilever beam of length continuous at the support and unrestrained against torsion at the support and free at the end, the effective length is equal to |
| A. | l = l |
| B. | l = 2l |
| C. | l = 0.5l |
| D. | l = 3l |
| Answer» E. | |
| 83. |
If the unsupported length of a stanchion is 4 metres and least radius of gyration of its cross-section is 5, the slenderness ratio of the stanchion, is |
| A. | 60 |
| B. | 70 |
| C. | 80 |
| D. | 100 |
| Answer» D. 100 | |
| 84. |
Effective length of a column effectively held in position at both ends and restrained in direction at one end, is |
| A. | l |
| B. | 0.67 l |
| C. | 0.85 l |
| D. | 1.5 l |
| Answer» D. 1.5 l | |
| 85. |
The maximum slenderness ratio of a compression member carrying both dead and superimposed load is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 350 |
| Answer» B. 200 | |
| 86. |
Which of the following conditions is to be satisfied both in elastic and plastic analysis? |
| A. | equilibrium condition |
| B. | yield condition |
| C. | plastic moment condition |
| D. | mechanism condition |
| Answer» B. yield condition | |
| 87. |
The greatest permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to |
| A. | 180 t |
| B. | 220 t |
| C. | 230 t |
| D. | 270 t |
| Answer» E. | |
| 88. |
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 | |
| 89. |
In a grillage footing, the maximum shear force occurs at the |
| A. | edge of grillage beam |
| B. | centre of base plate |
| C. | centre of grillage beam |
| D. | centre of base plate |
| Answer» C. centre of grillage beam | |
| 90. |
If the pitch is 6 cm and rivet value is 4 tonnes, the number of rivets required for a riveted connection carrying an eccentric load of 15 tonnes at a distance of 30 cm from the centre line, is |
| A. | 6 |
| B. | 8 |
| C. | 10 |
| D. | 15 |
| Answer» C. 10 | |
| 91. |
When the depth of a plate girder is at least times the depth of vertical leg of the flange angles, the girder is known as deep plate girder, if is |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» E. | |
| 92. |
The distance between the outer faces of flanges of a plate girder, is known as |
| A. | overall depth |
| B. | clear depth |
| C. | effective depth |
| D. | none of these |
| Answer» B. clear depth | |
| 93. |
In case of timber structures, the form factor for solid circular cross-section is taken as |
| A. | 1.18 |
| B. | 1.414 |
| C. | 1.67 |
| D. | 1.81 |
| Answer» B. 1.414 | |
| 94. |
Tacking rivets in tension members, are provided at a pitch in line not exceeding |
| A. | 25 cm |
| B. | 50 cm |
| C. | 75 cm |
| D. | 100 cm |
| Answer» E. | |
| 95. |
The permissible stress to which a structural member can be subjected to, is known as |
| A. | bearing stress |
| B. | working stress |
| C. | tensile stress |
| D. | compressive stress |
| Answer» C. tensile stress | |
| 96. |
The capacity of the smallest pressed steel tank is |
| A. | 1000 litre |
| B. | 1650 litre |
| C. | 1950 litre |
| D. | 2450 litre |
| Answer» D. 2450 litre | |
| 97. |
An imaginary line along which rivets are placed, is known as |
| A. | rivet line |
| B. | back line |
| C. | gauge line |
| D. | all the above |
| Answer» E. | |
| 98. |
Normally, the angle of roof truss with asbestos sheets should not be less than |
| A. | 26½° |
| B. | 30° |
| C. | 35° |
| D. | 40° |
| Answer» C. 35° | |
| 99. |
Maximum permissible slenderness ratio of a member normally acting as a tie in a roof truss, is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 350 |
| Answer» E. | |
| 100. |
If W and L are the total superimposed load and the span of a plate girder in metres, the approximate self weight (W) of the girder, is taken as |
| A. | m = wl/100 |
| B. | m = wl/200 |
| C. | m = wl/300 |
| D. | m = wl/400 |
| Answer» D. m = wl/400 | |