Twisting moment is a product of ______ and the radius.

The shear stress at the centre of a circular shaft under torsion is</p>

______ is provided to prevent the river from outflanking the work.

___________ has steep slopes and gives more run off.

The level of top of weir can be termed as ______

The SI units for torsion is ______

________ reduces the possibility of separation.

Which of the following is a defect in plastering?

A hollow shaft outside diameter 120 mm and thickness 20 mm. Find polar moment of inertia.