Which of the following equipments are used for track recording by Indian Railways? 1. Track recording trolley 2. Track recording car 3. Rail-flaw detector 4. Hallade track recorder Select the correct answer.
- A1, 2, 3 and 4Correct
- B2 and 3 only
- C1 and 4 only
- D1, 2 and 3
Solution
Concept
Equipment for track monitoring on Indian Railways
Step-by-step solution
1. Track recording car, trolley-mounted recorders and the Hallade track recorder measure track geometry. 2. Rail-flaw detectors are also used in track monitoring (testing for rail defects).
Explanation
Indian Railways uses these four types of equipment in track monitoring and recording; the question treats them together.
Why the other options are wrong
The other options leave out at least two of the listed equipments.
Shortcut
Track monitoring equipment: car, trolley, Hallade, flaw detector.
Correct answer: A) 1, 2, 3 and 4