This set of Railway Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Cutting and Check Rails on Curves”.
1. Which is the formula for railexcess length which the inner rail gains over outer?
a) 4πG
b) 2πG
c) 4πG2
d) πG
View Answer
Explanation: The excess length which the inner rail gains over outer rail for a length L of the curve is the difference in circumference of outer and inner rail. It is given by 2πG, where G is the dynamic gauge.
2. Where are check rails provided on a track?
a) Perpendicular to the track
b) Parallel to inner rail
c) Parallel to outer rail
d) On both the rails
View Answer
Explanation: Check rails are provided parallel to the inner rail usually on sharp curves. This helps in reduction of lateral wear on the outer rail. They wear out quickly.
3. What is the minimum clearance prescribed for check rails for BG?
a) 44mm
b) 120mm
c) 18cm
d) 18mm
View Answer
Explanation: Check rails are provided on gauge face side of the inner rails especially on curves sharper than 8° on BG. Indian Railways has prescribed minimum clearance of 44mm for BG and MG routes.
4. Check rails help only in the reduction of lateral wear on the outer rail.
a) True
b) False
View Answer
Explanation: Check rails do help to reduce the lateral wear on the outer rail but it’s not their only function. They also decrease the chances of derailment of locomotive.
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