MCQOPTIONS
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MCQOPTIONS
This section includes 166 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. |
To achieve best performance, the type of switch preferred to, is |
| A. | undercut switch |
| B. | straight-cut switch |
| C. | overriding switch |
| D. | both (a) and (b) |
| Answer» D. both (a) and (b) | |
| 52. |
Smitch diamond is provided if the angle of diamond is less than |
| A. | 2° |
| B. | 4° |
| C. | 6° |
| D. | 8° |
| Answer» D. 8¬∞ | |
| 53. |
The spike commonly used to fix rails to wooden sleepers in Indian railways, is |
| A. | dog spike |
| B. | screw spike |
| C. | round spike |
| D. | all the above. |
| Answer» E. | |
| 54. |
Each block of a two-block concrete sleeper is |
| A. | 722 mm x 295 mm x 271 mm and 215 kg in weight |
| B. | 250 mm x 154 mm x 196 mm and 260 kg in weight |
| C. | 525 mm x 350 mm x 275 mm and 280 kg in weight |
| D. | none of these. |
| Answer» B. 250 mm x 154 mm x 196 mm and 260 kg in weight | |
| 55. |
Total effective bearing area of both the bowls of a pot sleeper, is |
| A. | slightly more than that of a wooden sleeper |
| B. | slightly less than that of a wooden sleeper |
| C. | equal to that of a wooden sleeper |
| D. | none of these. |
| Answer» D. none of these. | |
| 56. |
If sleeper density is M + 7 for 13 m rails, the minimum depth of ballast under wooden sleepers (25 cm x 13 cm), is |
| A. | 15 cm |
| B. | 20 cm |
| C. | 25 cm |
| D. | 30 cm |
| Answer» C. 25 cm | |
| 57. |
In a diamond crossing, number of noses are |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 6 |
| Answer» E. | |
| 58. |
Pot sleepers are used if degree of the curve does not exceed |
| A. | 4° |
| B. | 5° |
| C. | 6° |
| D. | 7° |
| Answer» B. 5¬∞ | |
| 59. |
Widening of gauge is provided if degree of the curve, is |
| A. | 3° or less |
| B. | 3° to |
| C. | more than |
| D. | none of these. |
| Answer» D. none of these. | |
| 60. |
Top surface of steel sleepers, is |
| A. | kept level throughout |
| B. | provided a cant of 1 in 20 inward |
| C. | provided a cant of 1 in 20 outward |
| D. | none of these. |
| Answer» C. provided a cant of 1 in 20 outward | |
| 61. |
On Indian Railways standard length of rails for B.G. track, is |
| A. | 33 ft (10.06 m) |
| B. | 36 ft (10.97 m) |
| C. | 39 ft (11.89 m) |
| D. | 42 ft (12.8 m) |
| Answer» E. | |
| 62. |
Bending of rail ends due to loose packing under a joint and loose fish Bolts, is known |
| A. | buckling |
| B. | hogging |
| C. | creeping |
| D. | none of these. |
| Answer» C. creeping | |
| 63. |
The check rails are placed opposite the crossing so that |
| A. | it is symmetrically placed opposite nose of crossing |
| B. | its one-third length is ahead of the nose of crossing |
| C. | its two-third length is ahead of the nose of crossing |
| D. | its three fourth length is ahead of the nose of crossing. |
| Answer» D. its three fourth length is ahead of the nose of crossing. | |
| 64. |
Degree of a railway curve is defined as number of degrees subtended at the centre of a curve by an arc of |
| A. | 10 m |
| B. | 15 m |
| C. | 20 m |
| D. | 30.5 m |
| Answer» E. | |
| 65. |
If a is average number of peaks more than 10 mm of uneveness per kilometre, b is average number peaks more than 6 mm for gauge variation per kilometre and c is average number of peaks more than 2 mm twist per metre, then composite current recording index (Ic), as recommended by Indian Northern Railways, is |
| A. | Ic = 10 - a - b - c/4 |
| B. | Ic = 20 - a - b - c/4 |
| C. | Ic = 30 - a - b - c/4 |
| D. | Ic = 40 - a - b - c/4 |
| Answer» E. | |
| 66. |
The main function of sleepers, is |
| A. | to support rails |
| B. | to hold rails at correct gauge |
| C. | to distribute load from the rails to ballast |
| D. | all the above. |
| Answer» E. | |
| 67. |
For metal sleepers with rounded edges, maximum size of ballast, is |
| A. | 50 mm |
| B. | 40 mm |
| C. | 30 mm |
| D. | 25 cm |
| Answer» C. 30 mm | |
| 68. |
The lengths of the standard crossings in India for Broad gauge and Metre gauge tracks is same for |
| A. | 1 in B.G. and, in 12 M.G. |
| B. | 1 in 12 B.G. and, 1 in 16 M.G. |
| C. | 1 in 12 B.G. and 1 in M.G. |
| D. | 1 in 16 B.G. and 1 in 12 M.G. |
| Answer» B. 1 in 12 B.G. and, 1 in 16 M.G. | |
| 69. |
In Indian railways, plate laying is usually done by |
| A. | side method |
| B. | telescopic method |
| C. | American method |
| D. | all the above. |
| Answer» C. American method | |
| 70. |
On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of |
| A. | 150 mm |
| B. | 165 mm |
| C. | 175 mm |
| D. | 185 mm |
| Answer» D. 185 mm | |
| 71. |
If the standard length of a crossing is 480 cm, the number of crossing is |
| A. | 1 in of B.G. |
| B. | 1 in of M.G. |
| C. | both (a) and (b) |
| D. | none of these. |
| Answer» D. none of these. | |
| 72. |
On a single line track, 10 goods trains loaded with iron ore run from A to B and empty wagons return from B to A daily. Amount of creep of the rails will be |
| A. | zero |
| B. | more in the direction A to B |
| C. | more in the direction B to A |
| D. | none of these. |
| Answer» C. more in the direction B to A | |
| 73. |
The distance between theoretical nose of crossing and actual nose of crossing for practical purposes, is |
| A. | Nose thickness x tan α |
| B. | Nose thickness x cot α |
| C. | Nose thickness x sin α |
| D. | Nose thickness x cos α |
| Answer» C. Nose thickness x sin Œ± | |
| 74. |
Staggered rail joints are generally provided |
| A. | on curves |
| B. | on tangents |
| C. | on bridges |
| D. | in tunnels. |
| Answer» B. on tangents | |
| 75. |
Packing of ballast is done |
| A. | near the ends of sleepers |
| B. | on the shoulders |
| C. | under sleepers |
| D. | between two rails. |
| Answer» D. between two rails. | |
| 76. |
Gauge of a permanent way, is |
| A. | minimum distance between running faces of rails |
| B. | minimum distance between outer faces of rails |
| C. | distance between centres of rails |
| D. | width of formation |
| Answer» B. minimum distance between outer faces of rails | |
| 77. |
If G is gauge distance and a is crossing, the distance between the nose of acute crossing and nose of obtuse crossing of a rail diamond, measured along the rail not forming the diamond, is |
| A. | G cot α |
| B. | G tan α |
| C. | G sin α |
| D. | G cos α |
| Answer» B. G tan Œ± | |
| 78. |
To avoid the damage of nose of crossing, the wing rails are ramped so that nose of crossing remains at a lower level by |
| A. | 3 mm |
| B. | 4 mm |
| C. | 5 mm |
| D. | 6 mm. |
| Answer» B. 4 mm | |
| 79. |
If the stock rails are B.H. rails, the type of switch generally provided, is |
| A. | articulated |
| B. | undercut |
| C. | over riding |
| D. | straight cut. |
| Answer» E. | |
| 80. |
A scissors cross over consists of one diamond and |
| A. | one turn out |
| B. | two turn outs |
| C. | three turn outs |
| D. | four turn outs |
| Answer» E. | |
| 81. |
Maximum cant deficiency prescribed on Indian Board Gauge Railways, is |
| A. | 40 mm |
| B. | 50 mm |
| C. | 75 mm |
| D. | 100 mm |
| Answer» E. | |
| 82. |
If D is the distance between the parallel sidings and α is the angle of crossing, the distance between the noses of crossing measured parallel to the main track, is |
| A. | D tan α |
| B. | D sec α |
| C. | D cosec α |
| D. | D cot α |
| Answer» D. D cot Œ± | |
| 83. |
A mono-block sleeper has |
| A. | square section |
| B. | rectangular section |
| C. | trapezoidal section |
| D. | semi-circular section |
| Answer» D. semi-circular section | |
| 84. |
Cast iron sleeper, is |
| A. | pot sleeper |
| B. | box sleeper |
| C. | Duplex sleeper |
| D. | plate sleeper |
| Answer» E. | |
| 85. |
Bull headed rails are generally provided on |
| A. | points and crossing |
| B. | straight tangents |
| C. | curved tracks |
| D. | metre gauge tracks |
| Answer» B. straight tangents | |
| 86. |
In permanent way, ballast |
| A. | transfers load from sleepers to the formation |
| B. | provides an elastic bed to the track |
| C. | provides a drainage of track |
| D. | all the above. |
| Answer» E. | |
| 87. |
By interchanging gibs and cotters of a pot sleeper, gauge may be slackened by |
| A. | 1.2 mm |
| B. | 2.2 mm |
| C. | 3.2 mm |
| D. | 4.2 mm |
| Answer» D. 4.2 mm | |
| 88. |
Minimum composite sleeper index for wooden sleepers used over bridge girders, is |
| A. | 1455 |
| B. | 1355 |
| C. | 1255 |
| D. | 1155 |
| Answer» B. 1355 | |
| 89. |
The rail section which is not used on Indian Broad Gauge tracks, is |
| A. | 35 R |
| B. | 40 R |
| C. | 45 R |
| D. | 55 R |
| Answer» C. 45 R | |
| 90. |
For calculating the length of curve lead (C.L.), the correct formula is |
| A. | C.L. = G. cot α/2 |
| B. | C.L. = 2IG |
| C. | C.L. = 2 GN |
| D. | all the above. |
| Answer» E. | |
| 91. |
The effective bearing area of all types of sleepers, is |
| A. | 0.40 m2 |
| B. | 0.42 m2 |
| C. | 0.44 m2 |
| D. | 0.46 m2 |
| Answer» E. | |
| 92. |
If the standard length of a B.G. crossing is 597 cm, the number of crossing, is |
| A. | 1 in |
| B. | 1 in 12 |
| C. | 1 in 16 |
| D. | none of these. |
| Answer» C. 1 in 16 | |
| 93. |
Stock rails are |
| A. | parts of crossing |
| B. | fitted against check rails |
| C. | fitted against tongue rails |
| D. | laid between heel of switch and nose of crossing. |
| Answer» D. laid between heel of switch and nose of crossing. | |
| 94. |
Rails are fixed on steel sleepers |
| A. | by bearing plates |
| B. | by dog spikes |
| C. | by keys in lugs or jaws |
| D. | none of these. |
| Answer» D. none of these. | |
| 95. |
A triangle of railway consists of |
| A. | three turn outs |
| B. | one turn out and two diamonds |
| C. | two turn outs and one split |
| D. | one turn out, one split and one diamond. |
| Answer» D. one turn out, one split and one diamond. | |
| 96. |
The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called |
| A. | diamond crossing |
| B. | diamond crossing with single slip |
| C. | diamond crossing with double slip |
| D. | cross over. |
| Answer» D. cross over. | |
| 97. |
On B.G. tracks the distance of outer signal from station limit is kept |
| A. | 510 m |
| B. | 520 m |
| C. | 530 m |
| D. | 540 m |
| Answer» E. | |
| 98. |
Sand may be used as ballast for |
| A. | wooden sleepers |
| B. | steel sleepers |
| C. | cast iron sleepers |
| D. | all the above. |
| Answer» D. all the above. | |
| 99. |
Minimum length of a transition curve required for |
| A. | 2° curves for a maximum permissible speed of 135 km/hr, is 220 metres |
| B. | 4° curves for a maximum permissible speed of 95 km/hr, is 220 metres |
| C. | 6° curves for a maximum permissible speed of 80 km/hr, is 220 metres |
| D. | All the above. |
| Answer» E. | |
| 100. |
According to Railway Board, no diamond crossing should be flatter than |
| A. | 1 in 6 |
| B. | 1 in |
| C. | 1 in 12 |
| D. | 1 in 16 |
| Answer» C. 1 in 12 | |