1. The rail is designated by its
a) length
b) weight
c) cross-section
d) weight per unit length
Ans: d
2. Two important constituents in the com-position of steel used for rail are
a) carbon and silicon
b) manganese and phosphorous
c) carbon and manganese
d) carbon and sulfur
Ans: c
3. The standard length of rail for Broad Gauge and Meter Gauge are respectively
a) 12 m and 12 m
b) 12 m and 13 m
c) 13 m and 12 m
d) 13 m and 13 m
Ans: c
4. 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)
Ans: b
5. Largest dimension of a rail is its
a) height
b) foot width
c) head width
d) any of the above
Ans: a
6. Largest percentage of material in the rail is in its
a) head
b) web
c) foot
d) head and foot both
Ans: a
7. The purpose of providing fillet in a rail section is to
a) increase the lateral strength
b) increase the vertical stiffness
c) avoid the stress concentration
d) reduce the wear
Ans: c
8. The cross-sectional area of 52 kg flat footed rail is
a) 6155 mm2
b) 6615 mm2
c) 7235 mm2
d) 7825 mm2
Ans: b
9. 52 kg rails are mostly used in
a) Broad Gauge
b) Meter Gauge
c) Narrow Gauge
d) both (a) and (b)
Ans: a
10. Tensile strength of steel used in rails should not be less than
a) 450 MPa
b) 500 MPa
c) 700 MPa
d) 850 MPa
Ans: c
11. Head width of 52 kg rail section is
a) 61.9 mm
b) 66.7mm
c) 67mm
d) 72.33 mm
Ans: c
12. 60 R rails are mostly used in
a) Broad Gauge
b) Metre Gauge
c) Narrow Gauge
d) none of the above
Ans: b
13. Ordinary rails are made of
a) mild steel
b) cast iron
c) wrought iron
d) high carbon steel
Ans: d
14. The main function of a fish plate is
a) to join the two rails together
b) to join rails with the sleeper
c) to allow rail to expand and contract freely
d) none of the above
Ans: a
15. Number offish bolts per fish plate is
a) 2
b) 4
c) 5
d) 6
Ans: b
16. Fish plate is in contact with rail at
a) web of rail
b) fishing plane
c) head of rail
d) foot of rail
Ans: b
17. Gauge is the distance between
a) center to center of rails
b) running faces of rails
c) outer faces of rails
d) none of the above
Ans: b
18. Which of the following factors govern the choice of the gauge ?
i) volume and nature of traffic
ii) speed of train
iii) physical features of the country
The correct answer is
a) only (i)
b) both (i) and (ii)
c) both (ii) and (iii)
d) (i), (ii) and (iii)
Ans: d
19. For developing thinly populated areas, the correct choice of gauge is
a) Broad Gauge
b) Meter Gauge
c) Narrow Gauge
d) any of the above
Ans: c
20. Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called
a) roaring rails
b) hogged rails
c) corrugated rails
d) buckled rails
Ans: b
21. The slipping of driving wheels of locomotives on the rail surface causes
a) wheel burns
b) hogging of rails
c) scabbing of rails
d) corrugation of rails
Ans: a
22. The width of foot for 90 R rail section is
a) 100 mm
b) 122.2 mm
c) 136.5 mm
d) 146.0 mm
Ans: c
23. The height of the rail for 52 kg rail section is
a) 143 mm ,
b) 156 mm
c) 172 mm ‘
d) 129 mm
Ans: b
24. The formation width for a railway track depends on the
i) type of gauge
ii) number of tracks to be laid side by side
iii) slope of sides of embankment or cutting
The correct answer is
a) only (i)
b) both (i) and (ii)
c) both (i) and (iii)
d) (i), (ii) and (iii)
Ans: b
25. The formation width for a single line meter gauge track in embankment as adopted on Indian Railways is
a) 4.27 m
b) 4.88 m
c) 5.49 m
d) 6.10 m
Ans: b