________ are transverse ties on which the rails are laid.

The ______ resistance is independent of the nature of surface contact.

Flow in circular pipes will be turbulent is Reynolds number is _____

In ___ liquid flows under atmospheric pressure.

The frictional resistance is __ to the surface area of contact.

For super critical flow, Fr _____ 1.

Froude number is the ratio of inertial force to the _____ force.

The Wheels of Rolling stock have slope ____