Work index is the gross energy (kWh/tonne of feed) necessary to reduce a very large feed to such a size that 80% of product particles will pass through a 0.1 mm screen. The value of work index determined for wet grinding should be multiplied with ________ to get the same for dry grinding?

Cross linked polymers are________?

The widest explosive limit is of ________, thereby making it the most explosive gas?

White smoke coming out of the chimney of a furnace indicates the use of________?

Pressure in a Pressurised Water Reactor (PWR) is used for ________?

Firing of refractory brick is done to ________?