______ openings or indentations of corrugations in plaster.

Calculate the polar moment of inertia for a solid circular shaft of 30 mm diameter.

Which of the following blasters contains pulverized alum?

Torsion is denoted by ______

________ reduces the possibility of separation.

The angle of twist can be written as ____

</p><p>Pure torsion of a shaft produces:</p> <p></p>

Which of the following is not sound proof?

In ______ there will be no means for silt disposal.