One degree of curve is equivalent to__________________?
A. 1600/R
B. 1700/R
C. 1750/R
D. 1850/R
where R is the radius of curve in meters
A. 1600/R
B. 1700/R
C. 1750/R
D. 1850/R
where R is the radius of curve in meters
A. longitudinal movement of rail
B. lateral movement of rail
C. vertical movement of rail
D. difference in level of two rails
A. 15 cm
B. 20 cm
C. 25 cm
D. 30cm
A. G/8
B. G/10
C. G/12
D. G/15
where G is the gauge
A. tan A
B. cot A
C. sec A
D. Arad
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. 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