Civil Hydraulics part-1

Test Preparation on Civil Hydraulics part-1

1.

on a single rail track, goods trains loaded with heavy iron material run starting from A to B, and then empty wagons run from B to A. the amount of creep in the rails

1Will be more in the direction of B to A
2Will be more in the direction of A to B
3Will be maximum at the middle of A and B
4Cannot be determined from the given data

2.

A triangle is used for

1Changing the direction of engine
2Transferring wagons to and from parallel tracks without shunting
3Separating all the sidings and shunting lines from main lines
4Preventing the vehicles from running off the track

3.

Heel divergence is

1Always less than flange-way clearance
2Equal to flange-way clearance
3Always greater than flange-way clearance
4Sometimes greater than flange-way clearance

4.

A stretcher bar is provided

1To permit lateral movement of the tongue rail
2To maintain the two tongue rails at the exact distance
3To ensure exact gauge at the toe of the switch as well as the nose of crossing
4To prevent any vertical movement between the wing rail and nose of crossing

5.

Cant deficiency occurs when a vehicle travels around a curve at

1Equilibrium speed
2Speeds higher than equilibrium speed
3Speeds lower than equilibrium speed
4Booked speed

6.

The type of spike used for fixing chairs of bull headed rails to wooden sleepers is

1Dog spike
2Rail screw
3Elastic spike
4Round spike

7.

Flat mild steel bearing plates are used

1For points and crossings in the lead portion
2With wooden sleepers at locations where creep is likely to be developed
3On all joints and curves
4On all the above

8.

Composite sleeper index is the index of

1Hardness and strength
2Strength and toughness
3Toughness and wear resistance
4Wear resistance and hardness

9.

Staggered joints are generally provided

1On curves
2On straight track
3When two different rail sections are required to be joined
4None of the above

10.

Creep is the

1Longitudinal movement of rail
2Lateral movement of rail
3Vertical movement of rail
4Difference in level of two rails

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