The main advantage of a cement concrete sleeper, is :
Options
A. its heavy weight which improves the track modulus
B. its capacity to maintain gauge
C. its suitability for track circuiting
D. its flat bottom which is very suitable for modern track
E. all the above.
Correct Answer
all the above.
More questions
1. Lami's theroem states that
Options
A. three forces acting at a point are always in equilibrium
B. if three forces acting on a point can be represented in magnitude and direction by the sides of a triangle, the point will be in the state of equilibrium
C. three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two
D. three coplaner forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two
Correct Answer: three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two
2. If d and n are the effective depth and depth of the neutral axis respectively of a singly reinforced beam, the lever arm of the beam, is
Correct Answer: at any point within the cross-section
7. If the coefficients of volume change and compressibility of a soil sample are respectively 6.75 x 10-2 and 3 x 10-2, the void ratio of the soil sample, is