Railway Engineering Questions and Answers – Basic Requirements of an Ideal Alignment

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This set of Railway Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Basic Requirements of an Ideal Alignment”.

1. Which of the following is not a basic requirement of ideal alignment?
a) Shortest possible route
b) Comfort of the passengers
c) Maximum operational expenses
d) Safety of the passengers
View Answer

Answer: c
Explanation: An ideal alignment of a railway track should have the shortest possible route and should be economically feasible. It should have minimum operational expenses and low cost of maintenance. It should provide safety and comfort to the passengers and should be aesthetically pleasing to the eyes.
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2. The maintenance cost of the rail line can be decreased by __________
a) Providing steep gradients
b) Avoiding steep gradients
c) Providing sharp turns
d) Avoiding mild gradients
View Answer

Answer: b
Explanation: The maintenance cost of a new rail line can be reduced significantly if we avoid steep gradients and sharp turns. This is because the rails and rolling stock undergoes heavy wear and tear when it encounters a steep gradient or a sharp turn.

3. Aesthetic consideration should also be given due importance while designing a rail alignment.
a) True
b) False
View Answer

Answer: a
Explanation: True. A rail journey is usually of a long duration. It should be aesthetically pleasing to the passengers. This can be achieved by passing the rail alignment through natural surroundings and avoiding views of borrow pits.
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4. Cut and fill of earthwork is performed while constructing a new rail line on undulating surface. Which of the following condition should be maintained so that construction cost is minimized?
a) Quantity of cut = Quantity of fill
b) Construction cost is independent of quantity of cut and fill
c) Quantity of cut > Quantity of fill
d) Quantity of cut < Quantity of fill
View Answer

Answer: a
Explanation: On an undulating surface, cut and fill of earthwork is performed to obtain a level surface. It is the process of taking earth (soil) from high areas to low areas. If the quantity of cut and quantity of fill are equal, then this will reduce the construction cost significantly.

5. The rail alignment should be such that the shortest route is chosen. However, there may be a deviation from this route due to practical difficulties.
a) True
b) False
View Answer

Answer: a
Explanation: True. It is always advisable to choose the shortest route between two stations. This reduces the cost of construction and maintenance. However, providing the shortest route in practice may not be possible due to existence of important buildings, trees, mountains, etc. on that route. Also, the gradient needs to be maintained for safe journey of passengers.
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Sanfoundry Global Education & Learning Series – Railway Engineering.

To practice all areas of Railway Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers.

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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