On This Page
This set of Railway Bridge and Tunnel Engineering Multiple Choice Questions & Answers (MCQs) focuses on Railway Bridge And Tunnel Engineering Set 3
Q1 | Bearing plates are used to fix
- Flat footed rails to the wooden sleepers
- Double headed rails to the wooden sleepers
- Bull headed rails to the wooden sleepers
- Flat footed rails to the cast iron sleepers
Q2 | 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
- Zero
- More in the direction A to B
- More in the direction B to A
- None of these
Q3 | The desirable rate of change of cant deficiency in case of Metre Gauge is
- 20 mm/sec
- 35 mm/sec
- 55 mm/sec
- 65 mm/sec
Q4 | At a rail joint, the ends of adjoining rails, are connected with a pair of fish plates and
- 2 fish bolts
- 4 fish bolts
- 6 fish bolts
- 8 fish bolts
Q5 | If the standard length of a B.G. crossing is 597 cm, the number of crossing, is
- 1 in 8½
- 1 in 12
- 1 in 16
- None of these
Q6 | Switch angle is the angle between
- The gauge face of the stock rail and tongue rail
- The outer face of the stock rail and tongue rail
- The gauge face of the stock rail and outer face of the tongue rail
- The outer face of the stock rail and the gauge face of the tongue rail
Q7 | Pick up the incorrect statement from the following:
- Sleepers transfer the load of moving locomotive to the girders of the bridges
- Sleepers act as a non-elastic medium between the rails and ballast
- Sleepers hold the rails at 1 in 20 tilt inward
- Sleepers hold the rails loose on curve
Q8 | On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is
- 29.8 to 37.3 kg/m
- 32.5 to 42.5 kg/cm
- 44.7 to 56.8 kg/m
- None of these
Q9 | The treadle bar is provided
- In the middle of the track a little in front of the toes of the tongue rail
- Near and parallel to inner side of one of the rails
- At right angle to the rail
- Near and parallel to inner side of both the rails
Q10 | Heel of crossing is the line joining
- Ends of splice rail and point rail
- Ends of lead rails butting the crossing
- Ends of wing rails
- Throat and actual nose of crossing
Q11 | The main advantage of a cement concrete sleeper, is:
- Its heavy weight which improves the track modulus
- Its capacity to maintain gauge
- Its suitability for track circuiting
- All the above
Q12 | Stock rails are
- Parts of crossing
- Fitted against check rails
- Fitted against tongue rails
- Laid between heel of switch and nose of crossing
Q13 | Continuity of electric current across welded rail joints, is maintained by
- Welding ends of a wire to each rail
- Placing an insulated plate underneath the rails
- Placing insulation in expansion gaps
- None of these
Q14 | 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
- 1 and 2 are correct
- 2 and 3 are correct
- 3 and 4 are correct
- 1 and 4 are correct
Q15 | The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called
- Diamond crossing
- Diamond crossing with single slip
- Diamond crossing with double slip
- Cross over
Q16 | On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of
- 150 mm
- 165 mm
- 175 mm
- 185 mm
Q17 | In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of3° on a gradient of 1 in 250 will have the permissible gradient of
- 1 in 257
- 1 in 357
- 1 in 457
- 1 in 512
Q18 | A CST-9 sleeper consists of
- Two inverted triangular pots on either side of rail seat
- A central plate with a projected key and box on the top of plate
- A tie bar and 4 cotters to connect two cast iron plates
- All the above
Q19 | Staggered rail joints are generally provided
- On curves
- On tangents
- On bridges
- In tunnels
Q20 | The following tests are conducted for rails:(i) Falling weight test(ii) Tensile test(iii) Hammer testThe compulsory tests are
- Only (i)
- (i) and (ii)
- (ii) and (iii)
- (i) and (iii)
Q21 | Pick up the incorrect statement from the following:
- Fish plates fit the underside of the rail head
- Fish plates fit the top of the rail foot
- Fish plates fit the web of the rail section
- Cross sectional area of fish plates, is normally the same as that of the rail section
Q22 | Pick up the correct statement from the following:
- Length of tongue rail should be greater than rigid wheel base of vehicle
- Stock rail should be longer than tongue rail
- Length of stock rail ahead of the toe should be a minimum of 1.65 m
- All the above
Q23 | Fish plate is in contact with rail at
- Web of rail
- Fishing plane
- Head of rail
- Foot of rail
Q24 | In railways a triangle is mainly provided for
- Diverting trains from the main line to branch line
- Crossing over between parallel tracks
- Changing direction of engines through 180°
- Shunting wagons in yards
Q25 | Minimum gradient in station yards is generally limited to
- 1 in 1000
- 1 in 750
- 1 in 500
- Zero