Mechanical Operations Questions

• Which of the follwoing mechanical conveyors does not come under the division 'scrapers'?
• Laminar flow region is said to exist during agitation of a liquid in an agitator, when the value of Reynolds number is
• __________ are used for the separation of coarse particles from a slurry of fine particles.
• Bond crushing law
• General crushing equation is given by . Bond's crushing law isobtained by solving this equation for n = __________ and feed of infinite size.
• Which of the following is a vacuum filter?
• Moore filter is a __________ filter.
• Shape factor for a cylinder whose length equals its diameter is
• The operating speed of a ball mill should be __________ the critical speed.
• Vacuum is applied in __________ zone, in case of a general type continuous rotary drum vacuum filter.
• The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size )
• Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its
• Flow of filtrate through the cake in a plate and frame filter press is best described by the __________ equation.
• Energy consumed for crushing one ton of material ranges from __________ kWh.
• Use of baffles in agitators help in minimising the __________ tendency.
• The crushed material received for separation is called feed or
• The most suitable equipment for removing the fine dust particle (< 1 micron dia.) from air below its dew point will be a/an
• Cement clinker is reduced to fine size by a
• Ball mill is used for
• __________ mixer is used for devulcanisation of rubber scrap & making water dispersion & rubber solution.