Cast irons are generally specified by their________?

Which of the following can be most effectively used for clarification of lube oil and printing ink?

Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of ________ times the paddle diameter?

Polycaprolactam (Nylon – 6) is produced by the condensation polymerisation of caprolactam at 240-280°C in which the conversion of caprolactam is about ________ percent?

The range of Mho’s scale of hardness is from________?

As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient?