Best Books for Civil Engineering Competitive Exams - Set 05 - ObjectiveBooks

# Practice Test: Question Set - 05

1. The main advantage of a cement concrete sleeper, is:
(A) Its heavy weight which improves the track modulus
(B) Its capacity to maintain gauge
(C) Its suitability for track circuiting
(D) All the above

2. For laying the railway track, materials required are
(A) Rails
(B) Fish-Plates
(C) Fish Bolts
(D) Bearing Plates
The quantities required for one kilometer of Broad Gauge track will be

3. Stock rails are
(A) Parts of crossing
(B) Fitted against check rails
(C) Fitted against tongue rails
(D) Laid between heel of switch and nose of crossing

4. Continuity of electric current across welded rail joints, is maintained by
(A) Welding ends of a wire to each rail
(B) Placing an insulated plate underneath the rails
(C) Placing insulation in expansion gaps
(D) None of these

5. 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
(A) 1 and 2 are correct
(B) 2 and 3 are correct
(C) 3 and 4 are correct
(D) 1 and 4 are correct

6. The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called
(A) Diamond crossing
(B) Diamond crossing with single slip
(C) Diamond crossing with double slip
(D) Cross over

7. On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of
(A) 150 mm
(B) 165 mm
(C) 175 mm
(D) 185 mm

8. 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
(A) 1 in 257
(B) 1 in 357
(C) 1 in 457
(D) 1 in 512

9. A CST-9 sleeper consists of
(A) Two inverted triangular pots on either side of rail seat
(B) A central plate with a projected key and box on the top of plate
(C) A tie bar and 4 cotters to connect two cast iron plates
(D) All the above

10. Staggered rail joints are generally provided
(A) On curves
(B) On tangents
(C) On bridges
(D) In tunnels

11. The following tests are conducted for rails:
(i) Falling weight test
(ii) Tensile test
(iii) Hammer test
The compulsory tests are
(A) Only (i)
(B) (i) and (ii)
(C) (ii) and (iii)
(D) (i) and (iii)

12. Pick up the incorrect statement from the following:
(A) Fish plates fit the underside of the rail head
(B) Fish plates fit the top of the rail foot
(C) Fish plates fit the web of the rail section
(D) Cross sectional area of fish plates, is normally the same as that of the rail section

13. Pick up the correct statement from the following:
(A) Length of tongue rail should be greater than rigid wheel base of vehicle
(B) Stock rail should be longer than tongue rail
(C) Length of stock rail ahead of the toe should be a minimum of 1.65 m
(D) All the above

14. Fish plate is in contact with rail at
(A) Web of rail
(B) Fishing plane
(C) Head of rail
(D) Foot of rail

15. In railways a triangle is mainly provided for
(A) Diverting trains from the main line to branch line
(B) Crossing over between parallel tracks
(C) Changing direction of engines through 180°
(D) Shunting wagons in yards

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