Engineering :: Railway Engineering
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61. |
When the degree of curve is more than 3?, the rails are bent to the correct curvature before fixing them on to the sleepers. |
Answer: Option A
Explanation:
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62. |
Creep causes |
A. |
opening of rail joints |
B. |
distortion of points and crossings |
C. |
buckling of track |
D. |
all of these |
Answer: Option D
Explanation:
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63. |
In Indian railways, themaximum wheel base distance on broad gauge is 4.058 m. |
Answer: Option B
Explanation:
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64. |
The gauge is widened on curves of |
A. |
equal to |
B. |
less than |
C. |
more than |
Answer: Option C
Explanation:
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65. |
The gauge should be |
Answer: Option A
Explanation:
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66. |
The longitudinal movement of the rails in a track is technically known as |
A. |
buckling |
B. |
hogging |
C. |
creeping |
D. |
none of these |
Answer: Option C
Explanation:
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67. |
The impact of the rail wheel ahead of the joint gives rise to the creep of the rail. This statement is according to |
A. |
wave theory |
B. |
percussion theory |
C. |
drag theory |
D. |
none of these |
Answer: Option B
Explanation:
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68. |
In hogging |
A. |
the rail ends get bent down and deflected due to loose packing under the joints |
B. |
the rails get out of their original positions due to insufficient expansion joint gap |
C. |
the longitudinal movement of the rails in track takes place |
D. |
all of the above |
Answer: Option A
Explanation:
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69. |
When the rails get out of their original position due to insufficient expansion joint gap, the phenomenon is known as buckling. |
Answer: Option A
Explanation:
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70. |
Which of the following statement is correct? |
A. |
When wheel passes over a rail joint, it causes positive creep. |
B. |
Insufficient and defective packing of ballast causes creep. |
C. |
Train wheels cause slight depression on the table of the rails due to their own weight |
D. |
all of the above |
Answer: Option D
Explanation:
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