This set of Railway Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Rail Wear”.
1. Where does maximum lateral wear of rail occurs?
a) On curves
b) On flat gradient
c) On steep gradient
d) Same everywhere
View Answer
Explanation: Centrifugal forces act on the locomotive while traversing curves. This causes lateral thrust development which leads to more lateral wear.
2. Which of the following is responsible for wear and tear of rails in coastal areas?
a) Humidity
b) Weather effects
c) Humidity and weather effects
d) Extra force applied by the engine
View Answer
Explanation: Rails may face additional wear and tear in coastal areas and tunnels due to humidity and weather changes. Extra force is applied by engine on steep gradients.
3. The difference in height of the rail at end and at a point 30cm away from the end is called as ________
a) Rail end batter
b) Slope of rail
c) Coning of wheel
d) Gradient of rail
View Answer
Explanation: Due to moving loads the end of the rails wears in some time. Thus a height difference is created and is called rail end batter.
4. Where are rail lubricators used?
a) On sharp curves
b) On steep rails
c) On narrow gauges
d) On cast iron sleepers
View Answer
Explanation: Lateral wear at sharp curves is very high. Rail lubricators are used to lubricate the gauge face on the outer rail on sharp curves to reduce friction which subsequently reduces wear and tear.
5. Which of the following methods cannot be used for measurement of wear of rails?
a) By weighing the rail
b) By using instruments
c) Chain and tape
d) Profiling with the help of needles
View Answer
Explanation: Wear of rail cannot be measured by chain and tape because it’s minute. Methods like profiling of section or weighing of rails is used.
6. Interchanging inner and outer rails will lead to ______
a) Minimising wear of rails
b) Increasing wear of rails
c) Change in cant
d) Increasing rail end batter
View Answer
Explanation: Outer rails are more damaged as compared to inner rails on curves. Interchanging them can reduce wear and increase their service life.
Sanfoundry Global Education & Learning Series – Railway Engineering.
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