Railway Engineering Set 7 MCQs

Q1 | Charles Blacker Vignoles invented the flat footed rails in

1814

1836

1846

1856

Q2 | A triangle of railway consists of

three turn outs

one turn out and two diamonds

two turn outs and one split

one turn out, one split and one diamond

Q3 | A treadle bar is used for

interlocking points and signal

setting points and crossings

setting marshalling yard signals

track maintenance

Q4 | If L is length of a rail and R is the radius of a curve, the versine h for the curve, is

a = l/4r

a = l²/4r

h = l²/8r

h = l²/16r

Q5 | For metal sleepers with rounded edges, maximum size of ballast, is

50 mm

40 mm

30 mm

25 cm

Q6 | Head width of 52 kg rail section is

61.9 mm

66.7 mm

67 mm

72.33 mm

Q7 | Rail joint supported on a single sleeper, is known

suspended rail joint

bridge rail joint

supported rail joint

square rail joint

Q8 | Each block of a two-block concrete sleeper is

722 mm × 295 mm × 271 mm and 215 kg in weight

250 mm × 154 mm × 196 mm and 260 kg in weight

525 mm × 350 mm × 275 mm and 280 kg in weight

none of these

Q9 | The formation width for a double line Broad Gauge track in cutting (excluding drains) as adoptedon Indian Railways is

6.10 m

8.84 m

10.21 m

10.82 m

Q10 | Arrangement made to divert the trains from one track to another, is known as

railway point

railway crossing

turnout

railway junction

Q11 | The standard dimensions of a wooden sleeper for a B.G. railway track are

2.74 m × 25 cm × 13 cm

1.83 m × 20 cm × 11 cm

1.52 m × 15 cm × 10 cm

1.75 cm × 20 cm × 12 cm

Q12 | The limiting value of cant excess for Broad Gauge is

55 mm

65 mm

75 mm

100 mm

Q13 | Indian Railways detects the rail flow by

mitsubishi rail flow dector

soni rail flow dector

audi-gauge rail flow detector

kraut kramer rail flow detector

Q14 | The gradient on which an additional engine is required to negotiate the gradient, is called

momentum gradient

pusher gradient

ruling gradient

steep gradient

Q15 | If D is distance between centres of two parallel tracks of gauge G with entire curved leads andequal angles of crossing, total length of crossover, is

d (4r - 2g - d)]

d (3r - 2g -d)]

d (3r + 2g - d)]

d (4 + 2g - d)]

Q16 | Which of the following mechanical devices is used to ensure that route cannot be changed whilethe train is on the point even after putting back the signal?

detectors

point lock

iock bar

stretcher bar

Q17 | Pot sleepers are used if degree of the curve does not exceed

4°

5°

6°

7°

Q18 | Burnettising is done for the preservation of

wooden sleepers

rails

ballast

none of these

Q19 | A kink is made in stock rails, ahead of the toe of switch at a distance of

10 cm

15 cm

20 cm

30 cm

Q20 | Rails are fixed on steel sleepers

by bearing plates

by dog spikes

by keys in lugs or jaws

none of these

Q21 | Largest dimension of a rail is its

height

foot width

head width

any of the above

Q22 | The rail section which is not used on Indian metre gauge tracks, is

25 r

30 r

35 r

40 r

Q23 | Advantage of automatic signalling, is:

increased safety

reduction in delays

increase in track capacity

all the above

Q24 | For developing thinly populated areas, the correct choice of gauge is

broad gauge

meter gauge

narrow gauge

any of the above

Q25 | Coning of wheels

prevent lateral movement of wheels

provide smooth running of trains

avoid excessive wear of inner faces of rail

all the above