Railway Engineering Questions and Answers Part-11

1. Which section comments on the availability of water for various construction activities and its appropriateness for consumption?
a) Project Engineering
b) Estimation and cost of construction
c) Project Organisation
d) Environmental Section

Answer: c
Explanation: Project organisation deals with water availability and its fitness for drinking. It also comments on the Hygiene and health of the staff members and appropriate medical arrangements needed. It may also indicate the cost of such plans.

2. What is the order of arrangement of documents in the Report?
a) Index, Report, Covering note
b) Covering note, Index, Report, List of drawings, Appendices
c) Index, Covering note, Report, List of drawings, Appendices
d) Covering note, Index, Report, Appendices

Answer: b
Explanation: All the documents belonging to the Final Location survey report must be in the order of- Covering note, Index, Report, List of drawings, Appendices.

3. Which among the following is not included in the Appendices to the report?
a) Historical and geographical aspects
b) Route selection and project description
c) Location report
d) Rates for construction work

Answer: b
Explanation: The appendices are the last part of the Final location survey report. It has three parts- Historical and geographical aspects, Location report and Rates for construction work. Route selection and project description is a part of Preliminary Engineering cum traffic survey report.

4. What is the first step involved in Construction of a New line
a) Ballasting of track
b) Land acquisition
c) Earthwork and bridges
d) Plate laying

Answer: b
Explanation: The first step involved in construction of new lines is acquisition of Land. After that earthwork, bridges and laying of plate is done.

5. Where should one refer to for the procedure of acquisition of land with the help of member state government?
a) Land Acquisition act
b) Land Surveying act
c) Rules of Railway Board
d) Indian Standard codes

Answer: a
Explanation: For acquisition of land one should follow the rules, regulations and procedure as written in section 4 and 6 of the Land Acquisition act. In case of emergency land can be acquired by using special sections 9 and 17 of the act.

6. If we want to construct a single line railway track, the land available should be adequate for the construction of a double line.
a) true
b) false

Answer: a
Explanation: The land acquired should have scope for future expansions. It should be sufficient for construction of borrows, formation and pits. Thus even for the construction of a single line the land available must be sufficient for the construction of a double line.

7. What does the slide slope provided for the embankment depends upon?
a) Cost of construction
b) Traffic flow
c) Nature of soil
d) Rainfall intensity of that area

Answer: c
Explanation: Slide slope is provided for easy drainage property and to reduce soil erosion. It depends on the Nature of soil of that area.

8. Why is the Formation of an embankment preferred over formation in a cutting?
a) It is economical
b) It has good drainage properties
c) It is easy to construct
d) Less earthwork required

Answer: b
Explanation: The formation is made in an embankment or cutting depending on the contour and rail level of that area. As formation in embankment is higher than the ground level, it keeps the rail safe during floods and allows easy drainage of water.

9. What is the objective of doing mechanical compaction after laying each layer?
a) To obtain maximum moisture content
b) To obtain minimum dry density
c) To obtain maximum dry density at optimum moisture content
d) To increase coarse grain content

Answer: c
Explanation: For the earthwork to be stable it must have appropriate moisture content. More or less water content will affect its firmness. Thus a sheep foot roller is used for doing mechanical compaction so that maximum dry density can be obtained at optimum moisture content.

10. Which curve is used to determine the economical lead of moving earth in the longitudinal direction?
a) Mass-haul curve
b) Optimum moisture content curve
c) Plasticity index curve
d) Atterberg limits curve

Answer: a
Explanation: In an area where both embankment and cutting type of formation are present, the earth from cutting should be utilised for embankments up to an economical lead. This economical lead of moving earth in the longitudinal direction is determined by using Mass-haul curve.