Civil Engineering - Railways MCQs Part 4
1. Wing rails are provided
A.
near tongue rails
near tongue rails
B.
near check rails
near check rails
C.
near stock rails
near stock rails
D.
in crossing.
in crossing.
Answer Option D
2. Burnettising is done for the preservation of
A.
wooden sleepers
wooden sleepers
B.
rails
rails
C.
ballast
ballast
D.
none of these.
none of these.
Answer Option A
3. 30 m long rails are used in
A.
India
India
B.
Pakistan
Pakistan
C.
Russia
Russia
D.
U.S.A.
U.S.A.
E.
U.K.
U.K.
Answer Option D
4. Minimum gradient in station yards is generally limited to
A.
1 in 1000
1 in 1000
B.
1 in 750
1 in 750
C.
1 in 500
1 in 500
D.
1 in 400
1 in 400
E.
zero
zero
Answer Option E
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)
n to (n + 2)
B.
(n + 2) to (n + 4)
(n + 2) to (n + 4)
C.
(n + 3) to (n + 6)
(n + 3) to (n + 6)
D.
(n + 4) to (n + 5)
(n + 4) to (n + 5)
Answer Option C
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.
Answer Option B
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.
Answer Option A
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
Answer Option D
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
Answer Option D
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.
Answer Option D
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.
Answer Option A
12. Packing of ballast is done
A. near the ends of sleepers
B. on the shoulders
C. under sleepers
D. between two rails.
Answer Option C
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.
Answer Option B
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.
Answer Option C
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
Answer Option D
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.
Answer Option D
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.
Answer Option C
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.
Answer Option D
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.
Answer Option A
20. In Indian railways, the ratio of axle load and weight of rail, is
A. 312
B. 412
C. 512
D. 600
Answer Option C
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
Answer Option A
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.
Answer Option A
23. In a diamond crossing, number of noses are
A. 2
B. 3
C. 4
D. 6
Answer Option D
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.
Answer Option D
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.
Answer Option B
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
Answer Option C
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
Answer Option C
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
Answer Option D
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.
Answer Option B
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.
Answer Option B
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.
Answer Option A
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
Answer Option D
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
Answer Option D
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.
Answer Option D
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