McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 151. |
Charles Blacker Vignoles invented the flat footed rails in |
| A. | 1814 |
| B. | 1836 |
| C. | 1846 |
| D. | 1856 |
| Answer» B. 1836 | |
| 152. |
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» C. two turn outs and one split | |
| 153. |
A treadle bar is used for |
| A. | interlocking points and signal |
| B. | setting points and crossings |
| C. | setting marshalling yard signals |
| D. | track maintenance |
| Answer» A. interlocking points and signal | |
| 154. |
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» C. h = l²/8r | |
| 155. |
For metal sleepers with rounded edges, maximum size of ballast, is |
| A. | 50 mm |
| B. | 40 mm |
| C. | 30 mm |
| D. | 25 cm |
| Answer» B. 40 mm | |
| 156. |
Head width of 52 kg rail section is |
| A. | 61.9 mm |
| B. | 66.7 mm |
| C. | 67 mm |
| D. | 72.33 mm |
| Answer» C. 67 mm | |
| 157. |
Rail joint supported on a single sleeper, is known |
| A. | suspended rail joint |
| B. | bridge rail joint |
| C. | supported rail joint |
| D. | square rail joint |
| Answer» C. supported rail joint | |
| 158. |
Each block of a two-block concrete sleeper is |
| A. | 722 mm × 295 mm × 271 mm and 215 kg in weight |
| B. | 250 mm × 154 mm × 196 mm and 260 kg in weight |
| C. | 525 mm × 350 mm × 275 mm and 280 kg in weight |
| D. | none of these |
| Answer» A. 722 mm × 295 mm × 271 mm and 215 kg in weight | |
| 159. |
The formation width for a double line Broad Gauge track in cutting (excluding drains) as adopted on Indian Railways is |
| A. | 6.10 m |
| B. | 8.84 m |
| C. | 10.21 m |
| D. | 10.82 m |
| Answer» C. 10.21 m | |
| 160. |
Arrangement made to divert the trains from one track to another, is known as |
| A. | railway point |
| B. | railway crossing |
| C. | turnout |
| D. | railway junction |
| Answer» C. turnout | |
| 161. |
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» A. 2.74 m × 25 cm × 13 cm | |
| 162. |
The limiting value of cant excess for Broad Gauge is |
| A. | 55 mm |
| B. | 65 mm |
| C. | 75 mm |
| D. | 100 mm |
| Answer» C. 75 mm | |
| 163. |
Indian Railways detects the rail flow by |
| A. | mitsubishi rail flow dector |
| B. | soni rail flow dector |
| C. | audi-gauge rail flow detector |
| D. | kraut kramer rail flow detector |
| Answer» D. kraut kramer rail flow detector | |
| 164. |
The gradient on which an additional engine is required to negotiate the gradient, is called |
| A. | momentum gradient |
| B. | pusher gradient |
| C. | ruling gradient |
| D. | steep gradient |
| Answer» B. pusher gradient | |
| 165. |
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» A. d (4r - 2g - d)] | |
| 166. |
Which of the following mechanical devices is used to ensure that route cannot be changed while the train is on the point even after putting back the signal? |
| A. | detectors |
| B. | point lock |
| C. | iock bar |
| D. | stretcher bar |
| Answer» C. iock bar | |
| 167. |
Pot sleepers are used if degree of the curve does not exceed |
| A. | 4° |
| B. | 5° |
| C. | 6° |
| D. | 7° |
| Answer» A. 4° | |
| 168. |
Burnettising is done for the preservation of |
| A. | wooden sleepers |
| B. | rails |
| C. | ballast |
| D. | none of these |
| Answer» A. wooden sleepers | |
| 169. |
A kink is made in stock rails, ahead of the toe of switch at a distance of |
| A. | 10 cm |
| B. | 15 cm |
| C. | 20 cm |
| D. | 30 cm |
| Answer» B. 15 cm | |
| 170. |
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» C. by keys in lugs or jaws | |
| 171. |
Largest dimension of a rail is its |
| A. | height |
| B. | foot width |
| C. | head width |
| D. | any of the above |
| Answer» A. height | |
| 172. |
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» D. 40 r | |
| 173. |
Advantage of automatic signalling, is: |
| A. | increased safety |
| B. | reduction in delays |
| C. | increase in track capacity |
| D. | all the above |
| Answer» D. all the above | |
| 174. |
For developing thinly populated areas, the correct choice of gauge is |
| A. | broad gauge |
| B. | meter gauge |
| C. | narrow gauge |
| D. | any of the above |
| Answer» C. narrow gauge | |
| 175. |
Coning of wheels |
| A. | prevent lateral movement of wheels |
| B. | provide smooth running of trains |
| C. | avoid excessive wear of inner faces of rail |
| D. | all the above |
| Answer» D. all the above | |
| 176. |
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» D. 3° | |
| 177. |
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» A. 275 × 25 × 13 cm | |
| 178. |
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» C. 3.2 mm | |
| 179. |
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» D. all the above | |
| 180. |
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» B. 1 in 720 | |
| 181. |
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» D. all the above | |
| 182. |
Track construction involves preparation of |
| A. | sub-grade |
| B. | plate laying |
| C. | ballasting |
| D. | all the above |
| Answer» D. all the above | |
| 183. |
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» B. 1 in 8½ | |
| 184. |
Smith diamond is provided if the angle of diamond is less than |
| A. | 2° |
| B. | 4° |
| C. | 6° |
| D. | 8° |
| Answer» C. 6° | |
| 185. |
60 R rails are mostly used in |
| A. | broad gauge |
| B. | metre gauge |
| C. | narrow gauge |
| D. | none of the above |
| Answer» B. metre gauge | |
| 186. |
A welded rail joint is generally |
| A. | supported on a sleeper |
| B. | supported on a metal plate |
| C. | suspended |
| D. | none of these |
| Answer» C. suspended | |
| 187. |
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» C. both (a) and (b) | |
| 188. |
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» C. 3.35 m | |
| 189. |
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» D. all the above | |
| 190. |
For points and crossings, maximum size of ballast, is |
| A. | 50 mm |
| B. | 40 mm |
| C. | 30 mm |
| D. | 25 mm |
| Answer» D. 25 mm | |
| 191. |
Which of the following methods of designation of crossing is mostly used in India? |
| A. | center line method |
| B. | right angle method |
| C. | isosceles angle method |
| D. | none of the above |
| Answer» B. right angle method | |
| 192. |
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» D. all the above | |
| 193. |
In a railway track, permissible gauge with tolerance under loaded condition, is |
| A. | g + 0.1 mm |
| B. | g + 1.5 mm |
| C. | g - 1.0 mm |
| D. | g - 1.5 mm |
| Answer» B. g + 1.5 mm | |
| 194. |
Yellow light-hand signal indicates |
| A. | stop |
| B. | proceed |
| C. | proceed cautiously |
| D. | none of the above |
| Answer» C. proceed cautiously | |
| 195. |
The first Indian railway was laid in |
| A. | 1775 |
| B. | 1804 |
| C. | 1825 |
| D. | 1853 |
| Answer» D. 1853 | |
| 196. |
Sand may be used as ballast for |
| A. | wooden sleepers |
| B. | steel sleepers |
| C. | cast iron sleepers |
| D. | all the above |
| Answer» C. cast iron sleepers | |
| 197. |
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» A. 28.49 m | |
| 198. |
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» C. four pairs of points, six acute angle crossings and two obtuse angle crossings | |
| 199. |
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» D. 0.46 m2 | |
| 200. |
The cross-sectional area of 52 kg flat footed rail is |
| A. | 6155 mm² |
| B. | 6615 mm² |
| C. | 7235 mm² |
| D. | 7825 mm² |
| Answer» B. 6615 mm² | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.