A. Between the adjoining faces of the running rail and the check rail near the crossing B. Between the gauge faces of the stock rail and the tongue rail C. Through which the tongue rail moves laterally at the toe of the switch D. None of the above
A. To ensure that each switch is correctly set B. To ensure that the point may not be operated while the train is on it C. To detect any obstruction between and tongue rail D. None of the above
A. Changing the direction of engine B. Transferring wagons to and from parallel tracks without shunting C. Separating all the sidings and shunting lines from main lines D. Preventing the vehicles from running off the track
A. Brick ballast has poor drainage characteristics. B. Coal ash is not used as ballast with steel or cast iron sleepers. C. Gravel ballast gives better performance on soft formation. D. Sand ballast causes excessive wear on top of rail
A. 1. they improve the track modulus. B. 2. they have good scrap value. C. 3. they render transportation easy. D. 4. they maintain the gauge quite satisfactorily.of these statements
