If some links are connected such that motion between them can take place in more than one direction, it is called________?

During peak load periods, the best method of controlling compressors is________?

Turbo propeller has the following additional feature over the turbojet ________?

All radiations in a black body are________?

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if________?

In the perpetual inventory control, the material is checked when it reaches its________?