MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 177 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. |
A scissors cross-over consists of |
| A. | two pairs of points, four acute angle crossings and two obtuse angle crossings |
| B. | four pairs of points, four acute angle crossings and four obtuse angle crossings |
| C. | four pairs of points, six acute angle crossings and two obtuse angle crossings |
| D. | two pairs of points, six acute angle crossings and four obtuse angle crossings |
| Answer» D. two pairs of points, six acute angle crossings and four obtuse angle crossings | |
| 52. |
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 | |
| 53. |
What will be the curve lead for a 1 in 8.5 turnout taking off from a straight broad gauge track? |
| A. | 28.49 m |
| B. | 21.04 m |
| C. | 14.24 m |
| D. | 7.45 m |
| Answer» B. 21.04 m | |
| 54. |
The first Indian railway was laid in |
| A. | 1775 |
| B. | 1804 |
| C. | 1825 |
| D. | 1853 |
| Answer» E. | |
| 55. |
Yellow light-hand signal indicates |
| A. | stop |
| B. | proceed |
| C. | proceed cautiously |
| D. | none of the above |
| Answer» D. none of the above | |
| 56. |
For calculating the length of curve lead (C.L.), the correct formula is |
| A. | c.l. = g. /2 |
| B. | c.l. = ig) |
| C. | c.l. = 2 gn |
| D. | all the above |
| Answer» E. | |
| 57. |
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. | |
| 58. |
Width of ballast section for Broad Gauge is |
| A. | 1.83 m |
| B. | 2.25 m |
| C. | 3.35 m |
| D. | 4.30 m |
| Answer» D. 4.30 m | |
| 59. |
For points and crossings, maximum size of ballast, is |
| A. | 50 mm |
| B. | 40 mm |
| C. | 30 mm |
| D. | 25 mm |
| Answer» E. | |
| 60. |
If the standard length of a crossing is 480 cm, the number of crossing is |
| A. | 1 in 8½ of b.g. |
| B. | 1 in 8½ of m.g. |
| C. | both (a) and (b) |
| D. | none of these |
| Answer» D. none of these | |
| 61. |
A welded rail joint is generally |
| A. | supported on a sleeper |
| B. | supported on a metal plate |
| C. | suspended |
| D. | none of these |
| Answer» D. none of these | |
| 62. |
60 R rails are mostly used in |
| A. | broad gauge |
| B. | metre gauge |
| C. | narrow gauge |
| D. | none of the above |
| Answer» C. narrow gauge | |
| 63. |
Smith diamond is provided if the angle of diamond is less than |
| A. | 2° |
| B. | 4° |
| C. | 6° |
| D. | 8° |
| Answer» D. 8° | |
| 64. |
According to Indian Railway Board, no diamond crossing should be flatter than |
| A. | 1 in 6 |
| B. | 1 in 8½ |
| C. | 1 in 12 |
| D. | 1 in 16 |
| Answer» C. 1 in 12 | |
| 65. |
Track construction involves preparation of |
| A. | sub-grade |
| B. | plate laying |
| C. | ballasting |
| D. | all the above |
| Answer» E. | |
| 66. |
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. | |
| 67. |
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. | |
| 68. |
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 | |
| 69. |
The limiting value of cant gradient for all gauges is |
| A. | 1 in 360 |
| B. | 1 in 720 |
| C. | 1 in 1000 |
| D. | 1 in 1200 |
| Answer» C. 1 in 1000 | |
| 70. |
Standard size of wooden sleeper for Broad Gauge track is |
| A. | 275 × 25 × 13 cm |
| B. | 180 × 20 × 11.5 cm |
| C. | 225 × 23 × 13 cm |
| D. | 250 × 26 × 12 cm |
| Answer» B. 180 × 20 × 11.5 cm | |
| 71. |
An extra 7.5 cm ballast width is not provided on outer side on a curve, if its degree is |
| A. | 6° |
| B. | 5° |
| C. | 4° |
| D. | 3° |
| Answer» E. | |
| 72. |
The rail section which is not used on Indian metre gauge tracks, is |
| A. | 25 r |
| B. | 30 r |
| C. | 35 r |
| D. | 40 r |
| Answer» E. | |
| 73. |
The standard dimensions of a wooden sleeper for a B.G. railway track are |
| A. | 2.74 m × 25 cm × 13 cm |
| B. | 1.83 m × 20 cm × 11 cm |
| C. | 1.52 m × 15 cm × 10 cm |
| D. | 1.75 cm × 20 cm × 12 cm |
| Answer» B. 1.83 m × 20 cm × 11 cm | |
| 74. |
Pot sleepers are used if degree of the curve does not exceed |
| A. | 4° |
| B. | 5° |
| C. | 6° |
| D. | 7° |
| Answer» B. 5° | |
| 75. |
If D is distance between centres of two parallel tracks of gauge G with entire curved leads and equal angles of crossing, total length of crossover, is |
| A. | d (4r - 2g - d)] |
| B. | d (3r - 2g -d)] |
| C. | d (3r + 2g - d)] |
| D. | d (4 + 2g - d)] |
| Answer» B. d (3r - 2g -d)] | |
| 76. |
If L is length of a rail and R is the radius of a curve, the versine h for the curve, is |
| A. | a = l/4r |
| B. | a = l²/4r |
| C. | h = l²/8r |
| D. | h = l²/16r |
| Answer» D. h = l²/16r | |
| 77. |
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 | |
| 78. |
If D distance between the noses of crossing measured parallel to the main track, is |
| A. | d |
| B. | d |
| C. | d |
| D. | d |
| Answer» C. d | |
| 79. |
Metal sleepers are superior to wooden sleepers with respect to |
| A. | cost |
| B. | life |
| C. | track circuiting |
| D. | fastening |
| Answer» C. track circuiting | |
| 80. |
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 | |
| 81. |
Maximum value of 'throw of switch' for Broad Gauge track is |
| A. | 89 mm |
| B. | 95 mm |
| C. | 100 mm |
| D. | 115 mm |
| Answer» E. | |
| 82. |
Regional Indian railways use different types of sleepers according to their |
| A. | availability |
| B. | economy |
| C. | suitability |
| D. | all the above |
| Answer» E. | |
| 83. |
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 |
| B. | g |
| C. | g |
| D. | g |
| Answer» B. g | |
| 84. |
Composite sleeper index determines |
| A. | number of sleepers per rail length |
| B. | suitability of wooden sleepers |
| C. | permissible stresses in steel sleepers |
| D. | none of these |
| Answer» C. permissible stresses in steel sleepers | |
| 85. |
Anti-creep anchors are fixed to rails by |
| A. | wedging |
| B. | spring grip |
| C. | clamping |
| D. | all the above |
| Answer» E. | |
| 86. |
The life of a wooden sleeper depends upon |
| A. | quality of its timber |
| B. | ability to resist decay |
| C. | resistance to weathering |
| D. | all the above |
| Answer» E. | |
| 87. |
The height of the rail for 52 kg rail section is |
| A. | 143 mm |
| B. | 156 mm |
| C. | 172 mm |
| D. | 129 mm |
| Answer» C. 172 mm | |
| 88. |
52 kg rails are mostly used in |
| A. | broad gauge |
| B. | metre gauge |
| C. | narrow gauge |
| D. | both (a) and (b) |
| Answer» B. metre gauge | |
| 89. |
To prevent creep in rails, the steel sleepers are fixed with rails by clips, bolts and |
| A. | one key |
| B. | two keys |
| C. | three keys |
| D. | four keys |
| Answer» E. | |
| 90. |
Overall depth of a dog spike, is |
| A. | 120.6 mm |
| B. | 155.90 mm |
| C. | 135 mm |
| D. | 150 mm |
| Answer» B. 155.90 mm | |
| 91. |
The load on each axle of a locomotive is 22 tonnes. If the coefficient of friction is 0.2, then the hauling capacity due to 3 pairs of driving wheels will be |
| A. | 26.41 |
| B. | 19.81 |
| C. | 13.21 |
| D. | 6.61 |
| Answer» D. 6.61 | |
| 92. |
Distance between the inner rail and check rail provided on sharp curve, is |
| A. | 40 mm |
| B. | 42 mm |
| C. | 44 mm |
| D. | 46 mm |
| Answer» D. 46 mm | |
| 93. |
Spacing of sleepers |
| A. | throughout the length of a rail is kept uniform |
| B. | near rail joints, is kept closer |
| C. | at the middle of rails, is kept closer |
| D. | none of these |
| Answer» D. none of these | |
| 94. |
If absolute levels of rails at the consecutive axles A, B, and C separated by 1.8 metres are 100.505 m, 100.530 m, and 100.525 m respectively, the unevenness of rails, is |
| A. | 0.065 m |
| B. | 0.055 m |
| C. | 0.045 m |
| D. | 0.035 m |
| Answer» B. 0.055 m | |
| 95. |
The angle between the gauge faces of the stock rail and tongue rail, is called |
| A. | switch angle |
| B. | angle of crossing |
| C. | angle of turnout |
| D. | none of these |
| Answer» B. angle of crossing | |
| 96. |
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 | |
| 97. |
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 | |
| 98. |
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. | |
| 99. |
The spread between the point and splice rails at a distance of 4.25 m is 50 cm. The size of the crossing is |
| A. | 1 in 6 |
| B. | 1 in 8½ |
| C. | 1 in 12 |
| D. | 1 in 16 |
| Answer» C. 1 in 12 | |
| 100. |
Check rails are provided on inner side of inner rails if sharpness of a B.G. curve, is more than |
| A. | 3° |
| B. | 5° |
| C. | 6° |
| D. | 8° |
| Answer» E. | |