This set of Railway Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Elastic Fastenings”.
1. Which clips are most widely used with concrete sleepers on Indian Railways?
a) Pandrol clips
b) Spring steel clips
c) Round spikes
d) Bearing plates
Explanation: Pandrol clips are also called as elastic rail clips. They can be fixed on different types of sleepers (like concrete, cast iron) with the help of a base plate. They require very less maintenance.
2. Which of the following is not correct regarding Pandrol clips?
a) No usage of adjustment gauge possible
b) It provides safeguard from theft
c) They are most widely used on concrete sleepers
d) It gets caught inside MCI insert
Explanation: Pandrol clips do not provide safeguard from theft or sabotage and thus get stolen easily. They can be taken out from the fitting easily with the help of a Hammer.
3. What should be the range for the Brinel Hardness Number of the IRN 202 clip?
Explanation: The clip is treated so as to keep the Brinel Hardness Number in the range of 375-415. The whole arrangement is so made that it should handle a load of 1000kg and deflection of 18.5mm.
4. Which of the following is not a drawback of the IRN 202 clip?
a) It is costly and bulky
b) It requires frequent maintenance
c) Corrosion of heel can lead to development cracks
d) Rail changing is very difficult
Explanation: Changing of rail is easy in case of IRN 202 clips. The rail can be changed by removing the fastening only by relaxing the bolt and pushing the rail out.
5. Among which of the following fastenings permits the interchanging of 52kg rails with 60kg rails?
a) Herbert Meir
b) ERC MK-III
c) Spring steel clip
d) Lock spikes
Explanation: HM fastenings consist of four coach screws. A rubber pad which is grooved is placed under the seat to provide resistance to lateral movement of rails.
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