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The spread between the point and splice rails at a distance of 4.25 rn is 50 cm. The size of the crossing is
1 in 6
1 in 12
1 in 16
1 in
For providing the required tilt of rails, adazing of wooden sleepers, is done for
bull headed rails
None of these.
any type of rails
double headed rails
flat footed rails
Pot sleepers are used if degree of the curve does not exceed
5°
7°
4°
6°
8°
For calculating the length of curve lead
(C.L.), the correct formula is
All the above.
L. = 2IG
L. = 2 GN
L. = G. cot α/2
For flat bottom sleepers, maximum size of ballast, is
33 mm
25 mm
50 mm
40 mm
20 mm
Sand may be used as ballast for
wooden sleepers
All the above.
steel sleepers
cast iron sleepers
Wheels of a rolling stock are provided flanges on
both sides
neither side.
inner side
outer side
If n is length of a rail in metres, the number of sleepers per rail length generally varies from
(n + 2) to (n + 4)
(n + 3) to (n + 6)
(n + 4) to (n + 5)
n to (n + 2)
To design a cross-over between parallel tracks, the required components are
two switch, points, two acute angle crossings and two check rails
two switch points, two acute angle crossings and four check rails
None of these.
two switch points, two acute angle crossings and six check rails
Stock rails are
laid between heel of switch and nose of crossing.
fitted against check rails
fitted against tongue rails
parts of crossing
Wooden sleepers used on the girders of bridges, are generally made of
Teak
Sal
chir
deodar.
To achieve best performance, the type of switch preferred to, is
None of these.
straight-cut switch
Both (a) and (b)
overriding switch
undercut switch
For inspection and packing of ballast, each pot sleeper is provided with
one hole
two holes
three holes
four holes.
The grade compensation on
B.G. tracks on Indian Railways, is
0.05%
0.03%
0.04%
0.06%
0.02%
Burnettising is done for the preservation of
Ballast
None of these.
Rails
wooden sleepers
For points and crossings, maximum size of ballast, is
20 mm
40 mm
25 mm
30 mm
50 mm
Minimum packing space provided between two sleepers, is between
35 to 40 cm
20 to 25 cm
25 to 30 cm
30 to 35 cm
On Indian Railways, number of a crossing is defined as
sine of angle of crossing
contangent of angle of crossing.
consine of angle of crossing
tangent of angle of crossing
Bending of rail ends due to loose packing under a joint and loose fish Bolts, is known
hogging
None of these.
buckling
creeping
Rail section first designed on Indian railways, was
flat footed
and (b) simultaneously
bull headed
double headed
1
2
28
55
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