McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 51. |
At a rail joint, the ends of adjoining rails, are connected with a pair of fish plates and |
| A. | 2 fish bolts |
| B. | 4 fish bolts |
| C. | 6 fish bolts |
| D. | 8 fish bolts |
| Answer» B. 4 fish bolts | |
| 52. |
If the standard length of a B.G. crossing is 597 cm, the number of crossing, is |
| A. | 1 in 8½ |
| B. | 1 in 12 |
| C. | 1 in 16 |
| D. | none of these |
| Answer» B. 1 in 12 | |
| 53. |
Switch angle is the angle between |
| A. | the gauge face of the stock rail and tongue rail |
| B. | the outer face of the stock rail and tongue rail |
| C. | the gauge face of the stock rail and outer face of the tongue rail |
| D. | the outer face of the stock rail and the gauge face of the tongue rail |
| Answer» A. the gauge face of the stock rail and tongue rail | |
| 54. |
Pick up the incorrect statement from the following: |
| A. | sleepers transfer the load of moving locomotive to the girders of the bridges |
| B. | sleepers act as a non-elastic medium between the rails and ballast |
| C. | sleepers hold the rails at 1 in 20 tilt inward |
| D. | sleepers hold the rails loose on curve |
| Answer» B. sleepers act as a non-elastic medium between the rails and ballast | |
| 55. |
On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is |
| A. | 29.8 to 37.3 kg/m |
| B. | 32.5 to 42.5 kg/cm |
| C. | 44.7 to 56.8 kg/m |
| D. | none of these |
| Answer» C. 44.7 to 56.8 kg/m | |
| 56. |
The treadle bar is provided |
| A. | in the middle of the track a little in front of the toes of the tongue rail |
| B. | near and parallel to inner side of one of the rails |
| C. | at right angle to the rail |
| D. | near and parallel to inner side of both the rails |
| Answer» B. near and parallel to inner side of one of the rails | |
| 57. |
Heel of crossing is the line joining |
| A. | ends of splice rail and point rail |
| B. | ends of lead rails butting the crossing |
| C. | ends of wing rails |
| D. | throat and actual nose of crossing |
| Answer» A. ends of splice rail and point rail | |
| 58. |
The main advantage of a cement concrete sleeper, is: |
| A. | its heavy weight which improves the track modulus |
| B. | its capacity to maintain gauge |
| C. | its suitability for track circuiting |
| D. | all the above |
| Answer» D. all the above | |
| 59. |
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» C. fitted against tongue rails | |
| 60. |
Continuity of electric current across welded rail joints, is maintained by |
| A. | welding ends of a wire to each rail |
| B. | placing an insulated plate underneath the rails |
| C. | placing insulation in expansion gaps |
| D. | none of these |
| Answer» D. none of these | |
| 61. |
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» C. diamond crossing with double slip | |
| 62. |
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» C. 175 mm | |
| 63. |
In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible gradient of |
| A. | 1 in 257 |
| B. | 1 in 357 |
| C. | 1 in 457 |
| D. | 1 in 512 |
| Answer» B. 1 in 357 | |
| 64. |
A CST-9 sleeper consists of |
| A. | two inverted triangular pots on either side of rail seat |
| B. | a central plate with a projected key and box on the top of plate |
| C. | a tie bar and 4 cotters to connect two cast iron plates |
| D. | all the above |
| Answer» D. all the above | |
| 65. |
Staggered rail joints are generally provided |
| A. | on curves |
| B. | on tangents |
| C. | on bridges |
| D. | in tunnels |
| Answer» A. on curves | |
| 66. |
Pick up the incorrect statement from the following: |
| A. | fish plates fit the underside of the rail head |
| B. | fish plates fit the top of the rail foot |
| C. | fish plates fit the web of the rail section |
| D. | cross sectional area of fish plates, is normally the same as that of the rail section |
| Answer» C. fish plates fit the web of the rail section | |
| 67. |
Pick up the correct statement from the following: |
| A. | length of tongue rail should be greater than rigid wheel base of vehicle |
| B. | stock rail should be longer than tongue rail |
| C. | length of stock rail ahead of the toe should be a minimum of 1.65 m |
| D. | all the above |
| Answer» D. all the above | |
| 68. |
Fish plate is in contact with rail at |
| A. | web of rail |
| B. | fishing plane |
| C. | head of rail |
| D. | foot of rail |
| Answer» B. fishing plane | |
| 69. |
In railways a triangle is mainly provided for |
| A. | diverting trains from the main line to branch line |
| B. | crossing over between parallel tracks |
| C. | changing direction of engines through 180° |
| D. | shunting wagons in yards |
| Answer» C. changing direction of engines through 180° | |
| 70. |
Minimum gradient in station yards is generally limited to |
| A. | 1 in 1000 |
| B. | 1 in 750 |
| C. | 1 in 500 |
| D. | zero |
| Answer» D. zero | |
| 71. |
The formation width for a single line meter gauge track in embankment as adopted on Indian Railways is |
| A. | 4.27 m |
| B. | 4.88 m |
| C. | 5.49 m |
| D. | 6.10 m |
| Answer» B. 4.88 m | |
| 72. |
Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275 × 25 × 13 cm with 75 cm sleeper spacing is |
| A. | 15 cm |
| B. | 20 cm |
| C. | 25 cm |
| D. | 30 cm |
| Answer» C. 25 cm | |
| 73. |
The sleepers resting directly on girder are fastened to the top flange of girder by |
| A. | hook bolts |
| B. | dog spikes |
| C. | fang bolts |
| D. | rail screws |
| Answer» A. hook bolts | |
| 74. |
The sleepers which satisfy the requirements of an ideal sleeper, are |
| A. | cast iron sleepers |
| B. | r.c.c. sleepers |
| C. | steel sleepers |
| D. | wooden sleepers |
| Answer» D. wooden sleepers | |
| 75. |
The side of a rail diamond may be obtained by dividing the gauge of track by |
| A. | sine of acute crossing |
| B. | cosine of acute crossing |
| C. | tangent of acute crossing |
| D. | cotangent of acute crossing |
| Answer» A. sine of acute crossing | |
| 76. |
The standard length of rail for Broad Gauge and Meter Gauge are respectively |
| A. | 12 m and 12 m |
| B. | 12 m and 13 m |
| C. | 13 m and 12 m |
| D. | 13 m and 13 m |
| Answer» C. 13 m and 12 m | |
| 77. |
Coning of wheels is provided |
| A. | to check lateral movement of wheels |
| B. | to avoid damage to inner faces of rails |
| C. | to avoid discomfort to passengers |
| D. | all the above |
| Answer» D. all the above | |
| 78. |
On Indian Railways, angle of crossing between gauge faces of Vee, is generally calculated by |
| A. | cole\s method |
| B. | centre line method |
| C. | isosceles triangle method |
| D. | both (a) and (b) |
| Answer» A. cole\s method | |
| 79. |
Ballast packed below and around the sleepers to transfer the load from sleepers to formation, generally consists of |
| A. | broken stones |
| B. | gravels |
| C. | moorum |
| D. | all the above |
| Answer» D. all the above | |
| 80. |
On Indian Railways, the approximate weight of a rail section is determined from the formula |
| A. | weight of the rail/axial load of locomotive = 1/10 |
| B. | weight of the rail/axial load of locomotive = 1/410 |
| C. | weight of the rail/axial load of locomotive = 1/510 |
| D. | weight of the rail/axial load of locomotive = 1/610 |
| Answer» C. weight of the rail/axial load of locomotive = 1/510 | |
| 81. |
The maximum degree of curvature for Meter Gauge is limited to |
| A. | 10° |
| B. | 16° |
| C. | 30° |
| D. | 40° |
| Answer» B. 16° | |
| 82. |
The grade compensation on B.G. tracks on Indian Railways, is |
| A. | 0.02 % |
| B. | 0.03 % |
| C. | 0.04 % |
| D. | 0.05 % |
| Answer» C. 0.04 % | |
| 83. |
The factor for deciding the type of sleeper, is |
| A. | easy fixing and removal of rails |
| B. | provision of sufficient bearing area for rails |
| C. | initial and maintenance costs |
| D. | all the above |
| Answer» D. all the above | |
| 84. |
Number of keys used in CST-9 sleeper is |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | none of the above |
| Answer» A. 2 | |
| 85. |
Wheels of a rolling stock are provided flanges on |
| A. | outer side |
| B. | inner side |
| C. | both sides |
| D. | neither side |
| Answer» B. inner side | |
| 86. |
For inspection and packing of ballast, each pot sleeper is provided with |
| A. | one hole |
| B. | two holes |
| C. | three holes |
| D. | four holes |
| Answer» B. two holes | |
| 87. |
To design a cross-over between parallel tracks, the required components are: |
| A. | two switch points, two acute angle crossings and two check rails |
| B. | two switch points, two acute angle crossings and four check rails |
| C. | two switch points, two acute angle crossings and six check rails |
| D. | none of these |
| Answer» B. two switch points, two acute angle crossings and four check rails | |
| 88. |
The standard width of ballast for M.G. track in Indian Railways, is kept |
| A. | 3.35 m |
| B. | 3.53 m |
| C. | 2.30 m |
| D. | 2.50 m |
| Answer» C. 2.30 m | |
| 89. |
The correct relation between curve lead (CL), switch lead (SL) and lead of crossing (L) is given by |
| A. | cl = l - sl |
| B. | l =cl - sl |
| C. | sl = l + cl |
| D. | l = (cl + sl)/2 |
| Answer» B. l =cl - sl | |
| 90. |
Pot sleepers are in the form of |
| A. | a number of bowls connected together with a tie bar |
| B. | two bowls placed under each rail and connected together with a tie bar |
| C. | two bowls placed under two rails and the one between the rails |
| D. | none of these |
| Answer» B. two bowls placed under each rail and connected together with a tie bar | |
| 91. |
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» B. hogging | |
| 92. |
In a shunting signal if the red band is inclined at 45° it indicates |
| A. | stop |
| B. | proceed |
| C. | proceed cautiously |
| D. | none of the above |
| Answer» B. proceed | |
| 93. |
Rail tops of a track are placed |
| A. | horizontal |
| B. | at an inward slope of 1 in 20 |
| C. | at an outward slope of 1 in 20 |
| D. | at an outward slope of 1 in 30 |
| Answer» B. at an inward slope of 1 in 20 | |
| 94. |
A train is hauled by 2-8-2 locomotive with 22.5 tonnes and on each driving axle. Assuming the coefficient of rail-wheel friction to be 0.25, what would be the hauling capacity of the locomotive? |
| A. | 15.0 tonnes |
| B. | 22.5 tonnes |
| C. | 45.0 tonnes |
| D. | 90.0 tonnes |
| Answer» B. 22.5 tonnes | |
| 95. |
The type of switch generally used for B.G. and M.G. tracks, is |
| A. | articulated |
| B. | undercut |
| C. | over riding |
| D. | straight cut |
| Answer» C. over riding | |
| 96. |
For an effective administration, Indian railway system has been divided into |
| A. | four railway zones |
| B. | six railway zones |
| C. | seven railway zones |
| D. | nine railway zones |
| Answer» D. nine railway zones | |
| 97. |
If 'A' is the angle formed by two gauge faces, the crossing number will be |
| A. | tan a |
| B. | cot a |
| C. | sec a |
| D. | a rad |
| Answer» B. cot a | |
| 98. |
Heel divergency, the distance between the running faces of stock rail and gauge face of tongue rail, as recommended for Indian B.G. tracks, is |
| A. | 100 mm |
| B. | 119 mm |
| C. | 125 mm |
| D. | 135 mm |
| Answer» D. 135 mm | |
| 99. |
Pick up the incorrect statement from the following: |
| A. | ends of adjoining rails should be in true alignment |
| B. | rail joints should be as strong as the rail section itself |
| C. | rail joints should be elastic laterally as well as vertically |
| D. | all the above |
| Answer» D. all the above | |
| 100. |
Tensile strength of steel used in rails should not be less than |
| A. | 450 mpa |
| B. | 500 mpa |
| C. | 700 mpa |
| D. | 850 mpa |
| Answer» C. 700 mpa | |
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