The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the________?

Unit of power is________?

Grizzlies are used for separating ________ solids?

Bitterns is a/an________?

Which is the most suitable for the concentration of foamy & frothy liquors?

The amount of tetraethyl lead added to improve the octane number of motor gasoline is around ________ c.c per gallon of petrol?