1.
Separation of materials of the same density based on their sizes by using then-different rates of flow is called__________________?

2.
Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively ?

3.
Energy consumed for crushing one ton of material ranges from ______________ kWh?

4.
Sphericity of raschig ring (whose length and diameter are equal) is___________________?

5.
Which of the following gives the crushing energy required to create new surface ?

6.
The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the _____________ filter?

7.
Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?

8.
In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the ________________ crushing?

9.
_______________ centrifuge is the most suitable for separation of non-friable crystals?

10.
Laminar flow region is said to exist during agitation of a liquid in an agitator, when the value of Reynolds number is________________?