Railway Bridge And Tunnel Engineering Set 1 MCQs

Q1 | On a Single Rail Track,goods trains loadedwith heavy load material run starting from ‘A’to ‘B’ and then empty wagon run from ‘B’ to ‘A’.The amount of creep in the rails:

Will be more in the direction of B to A

Will be more in the direction of A to B

Will be maximum at the middle of A and B

Cannot be determined from the given data

Q2 | A triangle is used for

Changing the direction of engine

Transferring wagons to and from parallel tracks without shunting

Separating all the sidings and shunting lines from main lines

Preventing the vehicles from running off the track

Q3 | Heel divergence is

Always less than flange-way clearance

Equal to flange-way clearance

Always greater than flange-way clearance

Sometimes greater than flange-way clearance

Q4 | Stretcher bar is provided

To permit lateral movement of the tongue rail

To maintain the two tongue rails at the exact distance

To ensure exact gauge at the toe of the switch as well as the nose of crossing

To prevent any vertical movement between the wing rail and nose of crossing

Q5 | Cant deficiency occurs when a vehicle travels around a curve at

Equilibrium speed

Speeds higher than equilibrium speed

Speeds lower than equilibrium speed

Booked speed

Q6 | The type of spike used for fixing chairs of bull headed rails to wooden sleepers is

Dog spike

Rail screw

Elastic spike

Round spike

Q7 | Flat mild steel bearing plates are used

For points and crossings in the lead portion

With wooden sleepers at locations where creep is likely to be developed

On all joints and curves

On all the above

Q8 | Composite sleeper index is the index of

Hardness and strength

Strength and toughness

Toughness and wear resistance

Wear resistance and hardness

Q9 | Staggered joints are generally provided

On curves

On straight track

When two different rail sections are required to be joined

None of the above

Q10 | Creep is the

Longitudinal movement of rail

Lateral movement of rail

Vertical movement of rail

Difference in level of two rails

Q11 | Due to battering action of wheels over the end of the rails, the rails get bent down andare deflected at ends. These rails are called

Roaring rails

Hogged rails

Corrugated rails

Buckled rails

Q12 | The main function of a fish plate is

To join the two rails together

To join rails with the sleeper

To allow rail to expand and contract freely

None of the above

Q13 | The purpose of providing fillet in a rail section is to

Increase the lateral strength

Increase the vertical stiffness

Avoid the stress concentration

Reduce the wear

Q14 | Two important constituents in the composition of steel used for rail are

Carbon and silicon

Manganese and phosphorous

Carbon and manganese

Carbon and sulphur

Q15 | Flange-way clearance is the distance

Between the adjoining faces of the running rail and the check rail near the crossing

Between the gauge faces of the stock rail and the tongue rail

Through which the tongue rail moves laterally at the toe of the switch

None of the above

Q16 | Which of the following types of sleepers is preferred on joints?

CST-9 sleeper

Steel trough sleeper

Wooden sleeper

Concrete sleeper

Q17 | Total effective bearing area of both the bowls of a pot sleeper, is

Slightly more than that of a wooden sleeper

Slightly less than that of a wooden sleeper

Equal to that of a wooden sleeper

None of these

Q18 | Pick up the incorrect statement from the following:

Sleepers hold the rails at proper gauge on straights

Sleepers provide stability to the permanent way

Sleepers act as an elastic cushion between rails and ballast

None of these

Q19 | On Indian Railways, number of a crossing is defined as

Sine of angle of crossing

Cosine of angle of crossing

Tangent of angle of crossing

Contingent of angle of crossing

Q20 | Pandrol clips cannot be used with

Wooden sleepers

Concrete sleepers

CST-9 sleepers

Steel trough sleepers

Q21 | For providing the required tilt of rails, adazing of wooden sleepers, is done for

Bull headed rails

Double headed rails

Flat footed rails

Any type of rails

Q22 | If n is length of a rail in metres, the number of sleepers per rail length generally varies from

n to (n + 2)

(n + 2) to (n + 4)

(n + 3) to (n + 6)

(n + 4) to (n + 5)

Q23 | Normally maximum cant permissible in Meter Gauge is

75 mm

90 mm

140 mm

165 mm

Q24 | Type of switch rails generally adopted for modern track, is

Straight switch

Curved switch

Loose heel switch

Bent switch

Q25 | Pick up the correct statement from the following:

An extra width of 7.5 cm ballast is provided on outside a curve if track is laid with shortwelded rails

An extra width of 7.5 cm ballast is provided on outside a curve sharper than 3° on B.G. and M.G. tracks

An extra width of 15 cm ballast is provided on each shoulder if the track is laid with welded rails

All the above