Railway Engineering Set 3 MCQs

Q1 | 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

Q2 | 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

Q3 | 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

Q4 | 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

Q5 | 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

Q6 | 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

Q7 | 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

Q8 | 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

Q9 | Stock rails are

parts of crossing

fitted against check rails

fitted against tongue rails

laid between heel of switch and nose of crossing

Q10 | 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

Q11 | The arrangement of rails which permit trains to cross another track and also to divert to the othertrack, is called

diamond crossing

diamond crossing with single slip

diamond crossing with double slip

cross over

Q12 | 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

Q13 | In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3° on agradient of 1 in 250 will have the permissible gradient of

1 in 257

1 in 357

1 in 457

1 in 512

Q14 | 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

Q15 | Staggered rail joints are generally provided

on curves

on tangents

on bridges

in tunnels

Q16 | 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

Q17 | 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

Q18 | Fish plate is in contact with rail at

web of rail

fishing plane

head of rail

foot of rail

Q19 | 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

Q20 | Minimum gradient in station yards is generally limited to

1 in 1000

1 in 750

1 in 500

zero

Q21 | The formation width for a single line meter gauge track in embankment as adopted on IndianRailways is

4.27 m

4.88 m

5.49 m

6.10 m

Q22 | Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275 × 25 × 13 cm with75 cm sleeper spacing is

15 cm

20 cm

25 cm

30 cm

Q23 | The sleepers resting directly on girder are fastened to the top flange of girder by

hook bolts

dog spikes

fang bolts

rail screws

Q24 | The sleepers which satisfy the requirements of an ideal sleeper, are

cast iron sleepers

r.c.c. sleepers

steel sleepers

wooden sleepers

Q25 | The side of a rail diamond may be obtained by dividing the gauge of track by

sine of acute crossing

cosine of acute crossing

tangent of acute crossing

cotangent of acute crossing