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WorksheetsDAY 38 WORKSHEET LSGD (Railway Engineering )
Total questions: 15
Worksheet time: 8mins
On a steep mountainous route, an additional locomotive is provided temporarily to overcome a gradient steeper than ruling gradient. Such a gradient is called:
Station yard gradient
Momentum gradient
Pusher/Helper gradient
Virtual gradient
In Indian Railways, gauge widening is mainly provided:
On straight track for higher speed
On curves to reduce flange pressure
At level crossings
Only in tunnels
A sleeper must not be too rigid, even though it bears heavy load. The primary reason is:
To increase creep
To improve conductivity
To provide track elasticity
To reduce ballast depth
The best ballast for high-speed trunk routes is:
Moorum
Gravel
Broken granite stone
Coarse sand
In rail joints, staggered joints are preferred on:
Straight tracks to improve continuity
Curves to reduce weakness at same section
Bridges due to lower load
Yards to reduce maintenance
Excessive cant deficiency means the equilibrium cant required for the higher speed train is more than the actual cant provided on the track.
True
False
Screw spikes have lower holding power than dog spikes and are used only on low-speed track.
True
False
Assertion (A): Negative superelevation is sometimes deliberately provided on branching lines.
Reason (R): The inner rail of the branch line may be elevated above the main line’s outer rail when curves of opposite flexure meet.
A and R are true, and R is the correct explanation
A and R are true, but R is not the correct explanation
A is true, R is false
A is false, R is true
The weakest location in the track where two rails meet is called the (a) .
The longitudinal slope of a railway track is technically known as the (a) .
The slope provided on wheel tread to keep the axle central on curved sections is called (a) of wheels.
The distance from the bottom of a sleeper to the top of the formation is the (a) of ballast.
The maximum value of superelevation for BG track is limited to approximately (a) of the gauge.
MATCH THE FOLLOWING
Match the type of gradient with its special condition:
A. Ruling gradient - 2. Used in valleys to boost speed
B. Momentum gradient - 3. Provided nearly level to avoid rolling stock movement
C. Pusher/Helper gradient - 4. Maximum allowable gradient on route
D. Station yard gradient - 1. Requires additional locomotive power
A→2, B→4, C→1, D→3
A→4, B→1, C→2, D→3
A→4, B→2, C→1, D→3
A→4, B→2, C→3, D→1
MATCH THE FOLLOWING
Match the sleeper type with its key property:
A. Timber sleeper - 3. Very heavy and prestressed
B. Cast iron sleeper - 4. Best for track circuiting
C. Steel sleeper - 1. Susceptible to rusting
D. Concrete sleeper - 2. Used in old layouts
A→2, B→4, C→1, D→3
A→4, B→1, C→2, D→3
A→4, B→2, C→1, D→3
A→4, B→2, C→3, D→1
