Mechanical Operations MCQs

Horsepower required for a roll crusher is directly proportional to its

According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where $${\left( {\frac{{\text{S}}}{{\text{V}}}} \right)_{\text{p}}}$$ and $${\left( {\frac{{\text{S}}}{{\text{V}}}} \right)_{\text{f}}}$$ are surface to volume ratio of the product and feed respectively).

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

In case of a revolving mill, wet grinding compared to dry grinding

The maximum slope of a belt conveyor can be

The most suitable equipment used to devulcanise rubber scrap and to make water dispersion & rubber solution is a

Weber number is significant and is concerned with the

The controlling resistance in a rotary drum vacuum filter is the __________ resistance.

A __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream.