### Civil Engineering - Railways MCQs Part 4

1. Wing rails are provided

A.
near tongue rails
B.
near check rails
C.
near stock rails
D.
in crossing.

2. Burnettising is done for the preservation of

A.
wooden sleepers
B.
rails
C.
ballast
D.
none of these.

3. 30 m long rails are used in

A.
India
B.
Pakistan
C.
Russia
D.
U.S.A.
E.
U.K.

4. Minimum gradient in station yards is generally limited to

A.
1 in 1000
B.
1 in 750
C.
1 in 500
D.
1 in 400
E.
zero

5. If n is length of a rail in metres, the number of sleepers per rail length generally varies from

A.
n to (n + 2)
B.
(n + 2) to (n + 4)
C.
(n + 3) to (n + 6)
D.
(n + 4) to (n + 5)

6. For inspection and packing of ballast, each pot sleeper is provided with

A. one hole
B. two holes
C. three holes
D. four holes.

7. Each block of a two-block concrete sleeper is

A. 722 mm x 295 mm x 271 mm and 215 kg in weight
B. 250 mm x 154 mm x 196 mm and 260 kg in weight
C. 525 mm x 350 mm x 275 mm and 280 kg in weight
D. none of these.

8. 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
E. 0.50 m2

9. For points and crossings, maximum size of ballast, is

A. 50 mm
B. 40 mm
C. 30 mm
D. 25 mm
E. 20 mm

10. 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.

11. If S is the switch angle and α is diamond angle, r is the radius of slip, the distance between middle point slip and the nose of obtuse crossing, is

A.
B.
C.
D.

12. Packing of ballast is done

A. near the ends of sleepers
B. on the shoulders
C. under sleepers
D. between two rails.

13. If the standard length of a B.G. crossing is 597 cm, the number of crossing, is

A. 1 in
B. 1 in 12
C. 1 in 16
D. none of these.

14. 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.

15. If a is average number of peaks more than 10 mm of uneveness 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

16. Pick up the correct statement from the following:

A. An extra width of 7.5 cm ballast isprovided on outside a curve if track is laid with short welded rails
B. An extra width of 7.5 cm ballast isprovided on outside a curve sharper than 3° on B.G. and M.G. tracks
C. An extra width of 15 cm ballast is provided on each shoulder if the track is laid with welded rails
D. All the above.

17. 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
E. none of these.

18. 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.

19. The standard dimensions of a wooden sleeper for a B.G. railway track are

A. 2.74 m x 25 cm x 13 cm
B. 1.83 m x 20 cm x 11 cm
C. 1.52 m x 15 cm x 10 cm
D. 1.75 cm x 20 cm x 12 cm
E. none of these.

20. In Indian railways, the ratio of axle load and weight of rail, is

A. 312
B. 412
C. 512
D. 600

21. If D is the distance between parallel tracks G is the gauge and α is angle of crossings, the distance between theoretical noses of two crossings measured parallel to tracks, is

A. (D - G - G sec α) cot α
B. (D - G + G sec α) cot α
C. (D - G - G sec α) tan α
D. (D + G + G sec α) cot α

22. Minimum composite sleeper index for wooden sleepers used over bridge girders, is

A. 1455
B. 1355
C. 1255
D. 1155
E. none of these.

23. In a diamond crossing, number of noses are

A. 2
B. 3
C. 4
D. 6

24. If the stock rails are B.H. rails, the type of switch generally provided, is

A. articulated
B. undercut
C. over riding
D. straight cut.

25. 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.

26. 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

27. If D is the distance between the parallel sidings and α is the angle of crossing, the distance between the noses of crossing measured parallel to the main track, is

A. D tan α
B. D sec α
C. D cosec α
D. D cot α

28. On B.G. tracks the distance of outer signal from station limit is kept

A. 510 m
B. 520 m
C. 530 m
D. 540 m
E. 550 m

29. The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known

A. hogging
B. buckling
C. creeping
D. none of these.

6. For inspection and packing of ballast, each pot sleeper is provided with

A. one hole
B. two holes
C. three holes
D. four holes.

7. Each block of a two-block concrete sleeper is

A. 722 mm x 295 mm x 271 mm and 215 kg in weight
B. 250 mm x 154 mm x 196 mm and 260 kg in weight
C. 525 mm x 350 mm x 275 mm and 280 kg in weight
D. none of these.

8. 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
E. 0.50 m2

9. For points and crossings, maximum size of ballast, is

A. 50 mm
B. 40 mm
C. 30 mm
D. 25 mm
E. 20 mm

10. 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.