A cottrel precipitator makes use of the __________ for dusty air cleaning.
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Chemical Engineering · all questionsMechanical Operations
Mechanical Operations
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In a grinding operation, the limiting particle size is the size of the __________ particle in the sample.
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Vibrating screens have capacity in the range of __________ tons/ft2.mm mesh size.
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__________ is a cohesive solid.
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A widely used size reduction equipment for __________ is Bradford breaker.
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The operating speed of a ball mill should be __________ the critical speed.
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Ultracentrifuges running at speeds upto 100000 rpm is normally used for the
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In a size reduction crushing operation, the feed size is 10 to 50 mm, while the product size is 2 to 10 mm. This is a case of __________ crushing.
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A compressible cake has the
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A filter press is
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A pebble mill
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A propeller agitator
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In a roll crusher, both the rolls
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The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μrn is
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Screen capacity is expressed in terms of
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In case of a hammer crusher, the final product size depends on the
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Energy consumed for crushing one ton of material ranges from __________ kWh.
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A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is
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Supporting legs of a plate and frame filter is normally made of
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Q100
Open questionIn classification, particles are said to be equal settling, if they have the same terminal velocities in the
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