This set of Railway Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Site Investigations”.
1. Which of the following is not included in the data regarding the history of the affected section?
a) Method of Construction
b) Date of opening to Traffic
c) Drainage conditions
d) Speed restrictions
View Answer
Explanation: For determining the type of treatment various data has to be collected. History of affected section does not include drainage conditions. It is included in ‘Site details’.
2. What is obtained to get an idea of the Track maintainability?
a) Number of visits to track
b) Site details
c) Ballast penetration profiles
d) History of affected section
View Answer
Explanation: For an idea of the track maintainability, the man days utilised for maintenance per kilometre should be determined. The number of track visits for the last five years should be obtained.
3. What can be done to reduce creep of soil?
a) Providing turfing
b) Providing mats
c) Providing side berms
d) Cement grouting
View Answer
Explanation: Providing turfing or mats can be done in case of erosion of Banks. To reduce creeping of soil, flattening of slopes or provision of side berms is adopted.
4. What can be the remedial measure adopted for track level variations due to inadequate drainage due to high cess?
a) Improving side drainage by lowering the cess
b) Treatment with lime slurry pressure injection
c) Cement grouting
d) Cationic bituminous emulsion below ballast
View Answer
Explanation: For tack level variations due to inadequate drainage due to high cess, we can improve side drainage by lowering the cess and screening the ballast. We use lime slurry injection when there is seasonal variation in moisture content of top formation.
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