A frame which is composed of members just sufficient to keep it in equilibrium, such frame is _______

________ are made of high carbon steel to withstand heavy stresses.

Sabotage problem is eliminated in ___

In ___ liquid flows under atmospheric pressure.

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

___________ flow the liquid particles move along straight parallel paths.

For each sleeper ___ pandrol clips are used.

_____ number is the ratio between inertia and viscous forces.