Question 1

The side slope of embankments for a railway track is generally taken as

Accepted Answer

A)  1 : 1
B)  1.5 : 1
C)  2 : 1
D)  1 : 2

Question 2

If D is distance between centres of two parallel track of gauge G, then, total length of cross-over (from the point of commencement to the point of termination)  with an intermediate straight portion and N crossing, is given by

Accepted Answer

A)  DN + G [N +  1+N2\sqrt{1+N^2}1+N2c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5,-10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8,-50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0,35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5,-221l0 -0c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422s-65,47,-65,47zM834 80h400000v40h-400000z'/>​ ) ]
B)  DN + G [2N +  1+N2\sqrt{1+N^2}1+N2c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5,-10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8,-50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0,35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5,-221l0 -0c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422s-65,47,-65,47zM834 80h400000v40h-400000z'/>​ ) ]
C)  DN + G [3N +  1+N2\sqrt{1+N^2}1+N2c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5,-10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8,-50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0,35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5,-221l0 -0c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422s-65,47,-65,47zM834 80h400000v40h-400000z'/>​ ]
D)  DN + G [4N + 1+N2\sqrt{1+N^2}1+N2c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5,-10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8,-50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0,35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5,-221l0 -0c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422s-65,47,-65,47zM834 80h400000v40h-400000z'/>​ ]

Question 3

52 kg rails are mostly used in

Accepted Answer

A)  Broad Gauge
B)  Metre Gauge
C)  Narrow Gauge
D)  Both (
A)   and (
B)

Question 4

A Broad Gauge branch line takes off as a contrary flexure from a main line. If the superelevation required for branch line is 10 mm and cant deficiency is 75 mm, the super-elevation to be actually provided on the branch line will be

Accepted Answer

A)  10 mm
B)  64 mm
C)  85 mm
D)  65 mm

Question 5

Overall depth of a dog spike, is

Accepted Answer

A)  120.6 mm
B)  155.90 mm
C)  135 mm
D)  150 mm

Question 6

On B.G. tracks the distance of outer signal from station limit is kept

Accepted Answer

A)  510 m
B)  520 m
C)  530 m
D)  540 m

Question 7

The total gap on both sides between the inside edges of wheel flanges and gauge faces of the rail is kept as

Accepted Answer

A)  10 mm
B)  13 mm
C)  16 mm
D)  19 mm

Question 8

Rail tops of a track are placed

Accepted Answer

A)  Horizontal
B)  At an inward slope of 1 in 20
C)  At an outward slope of 1 in 20
D)  At an outward slope of 1 in 30

Question 9

In a scissors crossover, the crossings provided are
(i. 2 obtuse angle crossings
(ii. 4 obtuse angle crossings
(iii)  4 acute angle crossings
(iv. 6 acute angle crossings
The correct answer is

Accepted Answer

A)  (i)  and (iii) 
B)  (i)  and (iv) 
C)  (ii)  and (iii) 
D)  (ii)  and (iv)

Question 10

A train is hauled by 2-8-2 locomotive with 22.5 tonnes and on each driving axle. Assuming the coefficient of rail-wheel friction to be 0.25, what would be the hauling capacity of the locomotive?

Accepted Answer

A)  15.0 tonnes
B)  22.5 tonnes
C)  45.0 tonnes
D)  90.0 tonnes

Question 11

The check rails are placed opposite the crossing so that

Accepted Answer

A)  It is symmetrically placed opposite nose of crossing
B)  Its one-third length is ahead of the nose of crossing
C)  Its two-third length is ahead of the nose of crossing
D)  Its three fourth length is ahead of the nose of crossing

Question 12

Heel divergency, the distance between the running faces of stock rail and gauge face of tongue rail, as recommended for Indian B.G. tracks, is

Accepted Answer

A)  100 mm
B)  119 mm
C)  125 mm
D)  135 mm

Question 13

30 m long rails are used in

Accepted Answer

A)  India
B)  U.K.
C)  Russia
D)  U.S.A.

Question 14

Largest percentage of material in the rail is in its

Accepted Answer

A)  Head
B)  Web
C)  Foot
D)  Head and foot both

Question 15

Tensile strength of steel used in rails should not be less than

Accepted Answer

A)  450 MPa
B)  500 MPa
C)  700 MPa
D)  850 MPa

Question 16

Wing rails are provided

Accepted Answer

A)  Near tongue rails
B)  Near check rails
C)  Near stock rails
D)  In crossing

Question 17

Distance between the inner rail and check rail provided on sharp curve, is

Accepted Answer

A)  40 mm
B)  42 mm
C)  44 mm
D)  46 mm

Question 18

If 'A' is the angle formed by two gauge faces, the crossing number will be

Accepted Answer

A)  tan A
B)  cot A
C)  sec A
D)  A rad

Question 19

To prevent creep in rails, the steel sleepers are fixed with rails by clips, bolts and

Accepted Answer

A)  One key
B)  Two keys
C)  Three keys
D)  Four keys

Question 20

To achieve best performance, the type of switch preferred to, is

Accepted Answer

A)  Undercut switch
B)  Straight-cut switch
C)  Overriding switch
D)  Both (a)  and (b)

Exam 3: Railway Track Design and Maintenance

Distance between the inner rail and check rail provided on sharp curve, is

Correct AnswerverifiedShow Answer

Heel divergency, the distance between the running faces of stock rail and gauge face of tongue rail, as recommended for Indian B.G. tracks, is

Correct AnswerverifiedShow Answer

If D is distance between centres of two parallel track of gauge G, then, total length of cross-over (from the point of commencement to the point of termination) with an intermediate straight portion and N crossing, is given by

Correct AnswerverifiedShow Answer

If 'A' is the angle formed by two gauge faces, the crossing number will be

Correct AnswerverifiedShow Answer

Largest percentage of material in the rail is in its

Correct AnswerverifiedShow Answer

To prevent creep in rails, the steel sleepers are fixed with rails by clips, bolts and

Correct AnswerverifiedShow Answer

In a scissors crossover, the crossings provided are (i. 2 obtuse angle crossings (ii. 4 obtuse angle crossings (iii) 4 acute angle crossings (iv. 6 acute angle crossings The correct answer is

Correct AnswerverifiedShow Answer

The check rails are placed opposite the crossing so that

Correct AnswerverifiedShow Answer

Rail tops of a track are placed

Correct AnswerverifiedShow Answer

The side slope of embankments for a railway track is generally taken as

Correct AnswerverifiedShow Answer

A Broad Gauge branch line takes off as a contrary flexure from a main line. If the superelevation required for branch line is 10 mm and cant deficiency is 75 mm, the super-elevation to be actually provided on the branch line will be

Correct AnswerverifiedShow Answer

52 kg rails are mostly used in

Correct AnswerverifiedShow Answer

30 m long rails are used in

Correct AnswerverifiedShow Answer

Tensile strength of steel used in rails should not be less than

Correct AnswerverifiedShow Answer

On B.G. tracks the distance of outer signal from station limit is kept

Correct AnswerverifiedShow Answer

The total gap on both sides between the inside edges of wheel flanges and gauge faces of the rail is kept as

Correct AnswerverifiedShow Answer

Wing rails are provided

Correct AnswerverifiedShow Answer

Overall depth of a dog spike, is

Correct AnswerverifiedShow Answer

To achieve best performance, the type of switch preferred to, is

Correct AnswerverifiedShow Answer

A train is hauled by 2-8-2 locomotive with 22.5 tonnes and on each driving axle. Assuming the coefficient of rail-wheel friction to be 0.25, what would be the hauling capacity of the locomotive?

Correct AnswerverifiedShow Answer

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