Govt Exams
Welded joints (including Continuous Welded Rail or CWR) are preferred in modern railways as they reduce vibration and wear.
Grade crossing gates control road traffic at level crossings to ensure safety when trains pass through.
If express:freight = 3:5 and express trains = 24, then 24/3 = 8 (unit value). Freight trains = 5 × 8 = 40.
The standard rail thickness for broad gauge in India is 100 mm (measured at the head of the rail).
Total distance = 240 + 180 = 420 km. Total time = 4 + 3 = 7 hours. Average speed = 420/7 = 60 km/h.
ACSM (Axle Counting and Safety Monitoring) is a modern railway safety system for train detection.
Eastern Railway has its headquarters in Kolkata (formerly Calcutta), one of the oldest railway zones in India.
A turntable is used to rotate locomotives 180 degrees to change their direction without requiring them to travel backward.
A red light signal indicates 'Stop' and the driver must bring the train to a complete halt.
The standard spacing between sleepers on broad gauge is 0.8 meters (or approximately 30-32 inches).