McqMate
201. |
Smith diamond is provided if the angle of diamond is less than |
A. | 2° |
B. | 4° |
C. | 6° |
D. | 8° |
Answer» C. 6° |
202. |
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 |
203. |
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 |
204. |
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) |
205. |
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 |
206. |
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 |
207. |
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 |
208. |
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 |
209. |
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 |
210. |
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 |
211. |
Yellow light-hand signal indicates |
A. | Stop |
B. | Proceed |
C. | Proceed cautiously |
D. | None of the above |
Answer» C. Proceed cautiously |
212. |
The first Indian railway was laid in |
A. | 1775 |
B. | 1804 |
C. | 1825 |
D. | 1853 |
Answer» D. 1853 |
213. |
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 |
214. |
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 |
215. |
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 |
216. |
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 |
217. |
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 |
218. |
angle and R is radius of the turnout, the length of the tongue rail, is |
A. | R |
B. | R |
C. | /2 |
D. | /2 |
Answer» D. /2 |
219. |
Steel sleepers are |
A. | Rectangular is cross section throughout |
B. | Hollow circular pipes |
C. | 6 mm thick steel sheets with ends bent down |
D. | 6 mm thick steel sheets with ends bent up |
Answer» C. 6 mm thick steel sheets with ends bent down |
220. |
Number of dog spikes normally used per rail seat on curved track is |
A. | One on either side |
B. | Two outside and one inside |
C. | One outside and two inside |
D. | Two outside and two inside |
Answer» B. Two outside and one inside |
221. |
Minimum composite sleeper index for wooden sleepers used over bridge girders, is |
A. | 1455 |
B. | 1355 |
C. | 1255 |
D. | 1155 |
Answer» A. 1455 |
222. |
The shape of transition curve used by Indian Railways is |
A. | Cubic parabola |
B. | Spiral |
C. | Sine curve |
D. | Lemniscates of Bernoulli |
Answer» A. Cubic parabola |
223. |
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» A. Minimum distance between running faces of rails |
224. |
If w is width of sleepers, s is sleeper spacing and d is depth of ballast then |
A. | d = (s - w)/2 |
B. | d = (s - w)/3 |
C. | d = (s - w)/4 |
D. | d = (s - w)/5 |
Answer» A. d = (s - w)/2 |
225. |
The reception signal is
|
A. | (i) and (ii) |
B. | (ii) and (iii) |
C. | (iii) and (iv) |
D. | (i) and (iv) |
Answer» A. (i) and (ii) |
226. |
The standard width of ballast for B.G. Track in Indian Railways, is kept |
A. | 3.35 m |
B. | 3.53 m |
C. | 2.35 m |
D. | 2.53 m |
Answer» A. 3.35 m |
227. |
In India, metre gauge permanent way was adopted in |
A. | 1855 |
B. | 1860 |
C. | 1866 |
D. | 1871 |
Answer» D. 1871 |
228. |
Which one of the following rail failures is caused by loose fish bolts at expansion joints? |
A. | Crushed head |
B. | Angular break |
C. | Split head |
D. | Transverse fissures |
Answer» A. Crushed head |
229. |
Best wood for wooden sleepers is |
A. | Chir |
B. | Deodar |
C. | Sal |
D. | Teak |
Answer» D. Teak |
230. |
Bull headed rails are generally provided on |
A. | Points and crossing |
B. | Straight tangents |
C. | Curved tracks |
D. | Metre gauge tracks |
Answer» A. Points and crossing |
231. |
The type of bearing plate used in all joints and on curves to give better bearing area to the rails is |
A. | Flat mild steel bearing plate |
B. | Mild steel canted bearing plate |
C. | Cast iron anti-creep bearing plate |
D. | None of the above |
Answer» B. Mild steel canted bearing plate |
232. |
For holding a rail in position, no chairs are used for |
A. | Flat footed rails |
B. | Bull headed rails |
C. | Double headed rails |
D. | Both (a) and (b) |
Answer» A. Flat footed rails |
233. |
Cast iron sleeper, is |
A. | Pot sleeper |
B. | Box sleeper |
C. | Duplex sleeper |
D. | All the above |
Answer» D. All the above |
234. |
Gauge is the distance between |
A. | Center to center of rails |
B. | Running faces of rails |
C. | Outer faces of rails |
D. | None of the above |
Answer» B. Running faces of rails |
235. |
Pick up the correct statement from the following: |
A. | Rails are directly laid over hard wooden sleepers and fixed with spikes |
B. | Adzing is done on hard wooden sleepers |
C. | Bearing plates are used on soft wooden sleepers |
D. | All the above |
Answer» D. All the above |
236. |
Rail section is generally designated by its |
A. | Total weight |
B. | Total length |
C. | Weight per metre length |
D. | Area of its cross-section |
Answer» C. Weight per metre length |
237. |
At points and crossings, the total number of sleepers for 1 in 12 turnouts in Broad Gauge is |
A. | 51 |
B. | 62 |
C. | 70 |
D. | 78 |
Answer» C. 70 |
238. |
The quantity of stone ballast required per metre tangent length, is |
A. | 1.15 m3 |
B. | 1.14 m3 |
C. | 1.13 m3 |
D. | 1.11 m3 |
Answer» D. 1.11 m3 |
239. |
Weight and cross section of the rails are decided on |
A. | Gauge of tracks |
B. | Speed of trains |
C. | Spacing of sleepers |
D. | All the above |
Answer» D. All the above |
240. |
Number of switches provided on a Gaunt-letted track is |
A. | 1 |
B. | 2 |
C. | 3 |
D. | None of the above |
Answer» D. None of the above |
241. |
If S is cant deficiency in centimetres and V is maximum permissible speed in kmph, the maximum length of transition curves, is |
A. | SV/13.6 |
B. | SV/19.8 |
C. | SV/127 |
D. | SV/16.8 |
Answer» A. SV/13.6 |
242. |
A train is hauled by 4-8-2 locomotive. The number of driving wheels in this locomotive is |
A. | 4 |
B. | 8 |
C. | 12 |
D. | 14 |
Answer» B. 8 |
243. |
Maximum cant deficiency prescribed on Indian Board Gauge Railways, is |
A. | 40 mm |
B. | 50 mm |
C. | 75 mm |
D. | 100 mm |
Answer» D. 100 mm |
244. |
Vertical curves are provided where algebraic difference between grades is equal to or |
A. | Less than 2 mm/m |
B. | More than 2 mm/m |
C. | Less than 4 mm/m |
D. | More than 4mm/m |
Answer» D. More than 4mm/m |
245. |
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» D. Four turn outs |
246. |
The slipping of driving wheels of locomotives on the rail surface causes |
A. | Wheel burns |
B. | Hogging of rails |
C. | Scabbing of rails |
D. | Corrugation of rails |
Answer» A. Wheel burns |
247. |
Wooden sleepers used on the girders of bridges, are generally made of |
A. | Sal |
B. | Chir |
C. | Teak |
D. | Deodar |
Answer» C. Teak |
248. |
To ensure exact gauge, the gauge tie plates are provided at |
A. | Toe of the switch |
B. | Nose of crossing |
C. | Both (A) and (B) |
D. | None of the above |
Answer» C. Both (A) and (B) |
249. |
If G is gauge is metres, V is speed of trains in km/hour and R is radius of a curve in metres, the equilibrium super elevation is |
A. | GV²/R |
B. | GV²/17R |
C. | GV²/127R |
D. | GV²/130R |
Answer» C. GV²/127R |
250. |
The height of the center of arm of a semaphore signal above the ground is |
A. | 5.5 m |
B. | 6.5 m |
C. | 7.5 m |
D. | 8.5 m |
Answer» C. 7.5 m |
251. |
A wing rail is renewed or reconditioned if its maximum vertical wear is |
A. | 9.5 m |
B. | 7.5 m |
C. | 5.5 m |
D. | 5.0 m |
Answer» A. 9.5 m |
252. |
The steepest gradient permissible on a 2.5° curve for Broad Gauge line having ruling gradient of 1 in 200 is |
A. | 1 in 250 |
B. | 1 in 222 |
C. | 1 in 235 |
D. | 1 in 275 |
Answer» A. 1 in 250 |
253. |
The tread of wheels is provided an outward slope of |
A. | 1 in 10 |
B. | 1 in 15 |
C. | 1 in 20 |
D. | 1 in 25 |
Answer» C. 1 in 20 |
254. |
When the rail ends rest on a joint sleeper, the joint is termed as |
A. | Supported rail joint |
B. | Suspended rail joint |
C. | Bridge joint |
D. | Base joint |
Answer» A. Supported rail joint |
255. |
To prevent percolation of water into formation, moorum is used as a blanket for |
A. | Black cotton soil |
B. | Sandy soil |
C. | Clayey soil |
D. | All the above |
Answer» A. Black cotton soil |
256. |
Number of fish bolts per fish plate is |
A. | 2 |
B. | 4 |
C. | 5 |
D. | 6 |
Answer» B. 4 |
257. |
For flat bottom sleepers, maximum size of ballast, is |
A. | 50 mm |
B. | 40 mm |
C. | 33 mm |
D. | 25 mm |
Answer» A. 50 mm |
258. |
Which of the following turnouts is most commonly used for goods train on Indian Railways? |
A. | 1 in 8'/2 |
B. | 1 in 12 |
C. | 1 in 16 |
D. | 1 in 20 |
Answer» A. 1 in 8'/2 |
259. |
On Indian Railways standard length of rails for M.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» C. 39 ft (11.89 m) |
260. |
The nominal size of ballast used for points and crossings is |
A. | 25 mm |
B. | 40 mm |
C. | 50 mm |
D. | 10 mm |
Answer» A. 25 mm |
261. |
The overall length of a turn out is the distance between the end of stock rail and |
A. | Heel of crossing |
B. | Actual nose of crossing |
C. | Throat of crossing |
D. | Toe of crossing |
Answer» A. Heel of crossing |
262. |
The width of foot for 90 R rail section is |
A. | 100 mm |
B. | 122.2 mm |
C. | 136.5 mm |
D. | 146.0 mm |
Answer» C. 136.5 mm |
263. |
Monnier, the inventor of R.C.C., suggested the introduction of reinforced cement concert sleepers for the railways in |
A. | 1857 |
B. | 1867 |
C. | 1877 |
D. | 1887 |
Answer» C. 1877 |
264. |
Switch angle depends on
|
A. | (i) and (ii) |
B. | (ii) and (iii) |
C. | (iii) and (iv) |
D. | (i) and (iv) |
Answer» A. (i) and (ii) |
265. |
Minimum packing space provided between two sleepers, is between |
A. | 20 to 25 cm |
B. | 25 to 30 cm |
C. | 30 to 35 cm |
D. | 35 to 40 cm |
Answer» C. 30 to 35 cm |
266. |
Dog spikes are used for fixing rail to the |
A. | Wooden sleepers |
B. | CST-9 sleepers |
C. | Steel trough sleepers |
D. | Concrete sleepers |
Answer» A. Wooden sleepers |
267. |
Distance between inner faces of the flanges, is kept |
A. | Equal to the gauge distance |
B. | Slightly less than the gauge distance |
C. | Slightly more than the gauge distance |
D. | None of these |
Answer» B. Slightly less than the gauge distance |
268. |
Anti-creep bearing plates are provided on |
A. | Bridges and approaches |
B. | Joints |
C. | Both (A) and (B) |
D. | None of the above |
Answer» D. None of the above |
269. |
A mono-block sleeper has |
A. | Square section |
B. | Rectangular section |
C. | Trapezoidal section |
D. | Semi-circular section |
Answer» C. Trapezoidal section |
270. |
The distance through which the tongue rail moves laterally at the toe of the switch for movement of trains is called |
A. | Flange-way clearance |
B. | Heel divergence |
C. | Throw of the switch |
D. | None of the above |
Answer» C. Throw of the switch |
271. |
Coal ash (or cinder) is used in initial stages of a new construction of railway for |
A. | Wooden sleepers |
B. | Steel sleepers |
C. | Cast iron sleepers |
D. | None of these |
Answer» A. Wooden sleepers |
272. |
Normally the limiting value of cant is |
A. | G/8 |
B. | G/10 |
C. | G/12 |
D. | G/15 |
Answer» B. G/10 |
273. |
Width of the top portion of a flat footed, rail, is |
A. | 69.85 mm |
B. | 63.50 mm |
C. | 66.77 mm |
D. | 136.52 mm |
Answer» C. 66.77 mm |
274. |
Rails are bent to correct curvature if the degree of curve, is more than |
A. | 1° |
B. | 2° |
C. | 3° |
D. | 4° |
Answer» D. 4° |
275. |
Minimum depth of ballast prescribed of B.G. trunk lines of Indian Railways, is |
A. | 20 cm |
B. | 15 cm |
C. | 25 cm |
D. | 30 cm |
Answer» C. 25 cm |
276. |
Boxing of ballast is done |
A. | Under rails |
B. | At the rails |
C. | In between two rails |
D. | In between two sleepers |
Answer» B. At the rails |
277. |
Maximum wheel base distance provided on Indian B.G. tracks, is |
A. | 4.096 m |
B. | 5.096 m |
C. | 6.096 m |
D. | 7.096 m |
Answer» C. 6.096 m |
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