Q161
Open questionA tube mill compared to a ball mill
Select an option to see the answer and solution.
Chemical Engineering · all questionsMechanical Operations
Mechanical Operations
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
440
Questions
9/22
Page
Pick an option on a question to see the right answer and solution.
Q162
Open question__________ are mixed using ribbon blenders.
Select an option to see the answer and solution.
Q163
Open questionFor benefication of iron ore, the most commonly used method is
Select an option to see the answer and solution.
Q164
Open questionFor sizing of fine materials, the most suitable equipment is a
Select an option to see the answer and solution.
Q165
Open questionWhere 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
Select an option to see the answer and solution.
Q166
Open questionGrinding efficiency of a ball mill is of the order of __________ percent.
Select an option to see the answer and solution.
Q167
Open questionIn filtration, the use of 'filter aid' helps in
Select an option to see the answer and solution.
Q168
Open questionPower required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )
Select an option to see the answer and solution.
Q169
Open questionIn screen analysis, the notation +5 mm/-10 mm means particles passing through
Select an option to see the answer and solution.
Q170
Open questionFlow of filtrate through the cake in a plate and frame filter press is best described by the __________ equation.
Select an option to see the answer and solution.
Q171
Open questionOut of the following size reduction equipments, the maximum feed size can be accepted by the
Select an option to see the answer and solution.
Q172
Open questionThe reduction ratio for grinders is defined as (where, Df and Dp are average diameters of feed and product respectively).
Select an option to see the answer and solution.
Q173
Open questionWith increase in the capacity of screens, the screen effectiveness
Select an option to see the answer and solution.
Q174
Open questionCrushing efficiency is the ratio of the
Select an option to see the answer and solution.
Q175
Open questionDust laden air can be purified using a
Select an option to see the answer and solution.
Q176
Open questionA sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is
Select an option to see the answer and solution.
Q177
Open questionWhich of the following screens has the maximum capacity?
Select an option to see the answer and solution.
Q178
Open questionSolid particles of different densities are separated by
Select an option to see the answer and solution.
Q179
Open questionIn a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill.
Select an option to see the answer and solution.
Q180
Open questionFor the transportation of ultrafine particles, the equipment used is a........conveyor.
Select an option to see the answer and solution.