Question 1

Bearing plates are used to fix

Accepted Answer

A

Question 2

On a single line track, 10 goods trains loaded with iron ore run from A to B and empty wagons return from B to A daily. Amount of creep of the rails will be

Accepted Answer

Creep of the rails is more in the direction of the movement of the heavier, loaded trains. Since the trains are loaded with iron ore when moving from A to B and return empty, the creep will be more in the direction from A to B.

Question 3

The desirable rate of change of cant deficiency in case of Metre Gauge is

Accepted Answer

The desirable rate of change of cant deficiency for Metre Gauge is 35 mm/sec. This rate is considered comfortable for passengers and is used as a guideline in railway track design to ensure safety and comfort during train operations on curves.

Question 4

At a rail joint, the ends of adjoining rails, are connected with a pair of fish plates and

Accepted Answer

At a rail joint, the ends of adjoining rails are typically connected with a pair of fish plates and 4 fish bolts. This ensures a secure and stable connection between the rails.

Question 5

If the standard length of a B.G. crossing is 597 cm, the number of crossing, is

Accepted Answer

The answer of If the standard length of a B.G....

Question 6

Switch angle is the angle between

Accepted Answer

The switch angle is defined as the angle between the gauge face of the stock rail and the gauge face of the tongue rail. This is a key component in railway track design, particularly in the design of turnouts, where precision in angles ensures safe and efficient train movement.

Question 7

Pick up the incorrect statement from the following:

Accepted Answer

The answer of Pick up the incorrect statement from the...

Question 8

On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is

Accepted Answer

On Broad Gauge main lines with maximum traffic loads, heavier rail sections are preferred to accommodate the high stress and loads. The rail section ranging from 44.7 to 56.8 kg/m is suitable for such conditions, providing the necessary durability and support for heavy traffic.

Question 9

The treadle bar is provided

Accepted Answer

The treadle bar is typically installed near and parallel to the inner side of one of the rails to detect the presence of a train.

Question 10

Heel of crossing is the line joining

Accepted Answer

The answer of Heel of crossing is the line joining
...

Question 11

The main advantage of a cement concrete sleeper, is:

Accepted Answer

Cement concrete sleepers have several advantages including their heavy weight which improves track stability (track modulus), their ability to maintain gauge over time due to their rigidity and durability, and their suitability for track circuiting because they do not interfere with the electrical signals used in such systems.

Question 12

Stock rails are

Accepted Answer

Stock rails are fitted against tongue rails, which are movable rails that guide the train wheels from one track to another.

Question 13

Continuity of electric current across welded rail joints, is maintained by

Accepted Answer

The answer of Continuity of electric current across welded rail...

Question 14

Consider the following statements about concrete sleepers.
1) They improve the track modulus.
2) They have good scrap value.
3) They render transportation easy.
4) They maintain the gauge quite satisfactorily.
Of these statements

Accepted Answer

Concrete sleepers improve the track modulus due to their rigidity and weight, helping to distribute loads more evenly. They also maintain the gauge quite satisfactorily because of their dimensional stability and resistance to weathering, which keeps the track geometry consistent over time. However, they do not have good scrap value due to the difficulty in recycling concrete, and their heavy weight makes transportation more challenging compared to wooden or steel sleepers.

Question 15

The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called

Accepted Answer

The answer of The arrangement of rails which permit trains...

Question 16

On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of

Accepted Answer

The cant of 1 in 20 is provided for a distance of 175 mm on either side of the centre line of rails.

Question 17

In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible gradient of

Accepted Answer

The permissible gradient on a curve is calculated by adding the ruling gradient to the curve resistance. For a 3° curve, the curve resistance is approximately 30 meters per degree of curve. Therefore, the effective gradient becomes 1 in (250 + 30*3) = 1 in 340, which is approximately 1 in 357.

Question 18

A CST-9 sleeper consists of

Accepted Answer

CST-9 sleeper consists of all the mentioned components: two inverted triangular pots on either side of the rail seat, a central plate with a projected key and box on the top of the plate, and a tie bar with 4 cotters to connect two cast iron plates.

Question 19

Staggered rail joints are generally provided

Accepted Answer

Staggered rail joints are generally provided on curves to prevent the development of a continuous joint gap, which could lead to derailment.

Question 20

The following tests are conducted for rails:
(i) Falling weight test
(ii) Tensile test
(iii) Hammer test
The compulsory tests are

Accepted Answer

Tensile test and Falling weight test are compulsory for rails to assess their strength and durability under stress and impact, ensuring they can withstand the loads and forces they will encounter in service.

Quiz 2: Railway Track Components and Measurements