Mechanical Operations Questions

• __________ is the most suitable for compounding rubber and plastic solids.
• Maximum size reduction in a ball mill is done by the, __________ action.
• Which of the following mechanical conveyors does not come under the division 'carriers'?
• Trommels separate a mixture of particles depending on their
• increasing the capacity of a screen __________ the screen effectiveness.
• Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a
• Which of the following is used for primary crushing of very hard lumpy materials?
• __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.
• In case of a hammer crusher, the
• Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is
• Filtration of water in a paper mill is done by a/an __________ filter.
• A tube mill compared to a ball mill
• Screen capacity is not a function of
• Which is the most suitable conveyor for transportation of sticky material?
• The controlling resistance in a rotary drum vacuum filter is the __________ resistance.
• Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids ( > 50000 centipoise)?
• Coal is finally pulverised to 200 mesh size for burning in boilers by a
• For spheres, volume shape factor is given by
• Basic slag is not ground in
• Length/diameter ratio of a ball mill is