McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 51. |
Bearing plates are used to fix |
| A. | Flat footed rails to the wooden sleepers |
| B. | Double headed rails to the wooden sleepers |
| C. | Bull headed rails to the wooden sleepers |
| D. | Flat footed rails to the cast iron sleepers |
| Answer» A. Flat footed rails to the wooden sleepers | |
| 52. |
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» B. More in the direction A to B | |
| 53. |
The desirable rate of change of cant deficiency in case of Metre Gauge is |
| A. | 20 mm/sec |
| B. | 35 mm/sec |
| C. | 55 mm/sec |
| D. | 65 mm/sec |
| Answer» B. 35 mm/sec | |
| 54. |
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 | |
| 55. |
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 | |
| 56. |
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 | |
| 57. |
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 | |
| 58. |
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 | |
| 59. |
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 | |
| 60. |
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 | |
| 61. |
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 | |
| 62. |
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 | |
| 63. |
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 | |
| 64. |
Consider the following statements about concrete sleepers.
|
| A. | 1 and 2 are correct |
| B. | 2 and 3 are correct |
| C. | 3 and 4 are correct |
| D. | 1 and 4 are correct |
| Answer» D. 1 and 4 are correct | |
| 65. |
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 | |
| 66. |
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 | |
| 67. |
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 | |
| 68. |
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 | |
| 69. |
Staggered rail joints are generally provided |
| A. | On curves |
| B. | On tangents |
| C. | On bridges |
| D. | In tunnels |
| Answer» A. On curves | |
| 70. |
The following tests are conducted for rails:
|
| A. | Only (i) |
| B. | (i) and (ii) |
| C. | (ii) and (iii) |
| D. | (i) and (iii) |
| Answer» B. (i) and (ii) | |
| 71. |
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 | |
| 72. |
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 | |
| 73. |
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 | |
| 74. |
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° | |
| 75. |
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 | |
| 76. |
If L1 and L2 are actual and theoretical lengths of a tongue rail, d is heel divergence and t is thickness |
| A. | sin 1 (d - t/ |
| B. | tan 1 (d - t/ |
| C. | sin 1 (d - t/ |
| D. | tan 1 (d - t/ |
| Answer» A. sin 1 (d - t/ | |
| 77. |
If a is average number of peaks more than 10 mm of unevenness 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» D. Ic = 40 - a - b - c/4 | |
| 78. |
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 | |
| 79. |
On a straight railway track, absolute levels at point A on two rails are 100.550 m and 100.530 m and the absolute levels at point B 100 m apart are 100.585 m and 100.515 m respectively, the value of twist of rails per metre run, is |
| A. | 0.4 mm |
| B. | 0.5 mm |
| C. | 0.7 mm |
| D. | 0.8 mm |
| Answer» B. 0.5 mm | |
| 80. |
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 | |
| 81. |
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 | |
| 82. |
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 | |
| 83. |
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 | |
| 84. |
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 | |
| 85. |
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 | |
| 86. |
Which of the following factors govern the choice of the gauge?
|
| A. | Only (i) |
| B. | Both (i) and (ii) |
| C. | Both (ii) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» D. (i), (ii) and (iii) | |
| 87. |
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 | |
| 88. |
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 | |
| 89. |
The maximum degree of curvature for Meter Gauge is limited to |
| A. | 10° |
| B. | 16° |
| C. | 30° |
| D. | 40° |
| Answer» B. 16° | |
| 90. |
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 % | |
| 91. |
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 | |
| 92. |
Number of keys used in CST-9 sleeper is |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | None of the above |
| Answer» A. 2 | |
| 93. |
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 | |
| 94. |
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 | |
| 95. |
The compensation for curvature on gradient for Meter Gauge is given by |
| A. | 70/R |
| B. | 52.5/R |
| C. | 35/R |
| D. | 105/RR |
| Answer» B. 52.5/R | |
| 96. |
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 | |
| 97. |
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 | |
| 98. |
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 | |
| 99. |
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 | |
| 100. |
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 | |
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