121.
For point and crossings, size of broken stone ballast used is
A
50 mm
B
25 mm
C
32 mm
D
40 mm
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For point and crossings, size of broken stone ballast used is
50 mm
25 mm
32 mm
40 mm
For developing a thinly populated area, the correct choice of gauge is
narrow gauge
standard gauge
broad gauge
metre gauge
For changing the direction of engine the device used is
both a and b
triangle
turntable
scotch block
Fish plates should be designed for
all the above
vertical force
horizontal forces
longitudinal forces
Fish bolts are made from
any of the above
wrought iron
mild steel
high carbon steel
Ends of steel sleepers are
concave shaped
bulb shaped
flat and rectangular
convex shaped
Disadvantage of concrete sleeper is
all the above
their heavy weight
no scrap value
heavy damage during derailment
Cotters are used to fix
tie bars to cast iron sleepers
fish plates
rail to sleeper
bearing plate to sleeper
Coning of wheels is at
1 in 35
1 in 15
1 in 20
1 in 30
Concrete sleeper is used in railways due to
all the above
their ability to improve track modulus
high resistance to fire
long life
Compared to straight portion, on curves extra width of ballast required is
75 to 150 mm
nil
15 to 20 mm
40 to 50 mm
Chief function of sleeper is to
all the above
keep the rails at correct gauge
support the rails
distribute the load coming from rails
Broad gauge is...................wide.
762 mm
1676 mm
1435 mm
1000 mm
Breaking length of rails is approximately equal to the length between.................sleepers.
100
40
60
80
Boxing of ballast is to prevent.................of sleepers.
lateral movement
longitudinal movement
both lateral and longitudinal movement
none of the above
Beyond the dead end siding.................provided to prevent the movement of vehicles
buffer stop
sand hump
traverse
any one of the above
Ballast material generally used in India consists of
broken stone
gravel
murram
all of these
At the end of platform, ramp should be provided with a slope of
1 in 4
1 in 6
1 in 8
1 in 10
At Sonepur in North-East Railways, length of platform is
460 m
520 m
666 m
736 m
At road and rail level crossing, the crossing angle should not be less than
90°
60°
45°
30°