Highly viscous liquids & pastes are agitated by________________?
A. Propellers
B. Turbine agitators
C. Multiple blade paddles
D. None of these
Mechanical Operations
Which of the following is not an industrial screening equipment ?
Which of the following is not an industrial screening equipment ?
A. Sharpies centrifuge
B. Vibrating screen
C. Grizzly
D. Trommel
Which of the following mineral dressing operations is termed as ‘comminution’?
Which of the following mineral dressing operations is termed as ‘comminution’?
A. Panning
B. Spiralling
C. Tabling
D. None of these
200 mesh sieve size corresponds to _____________ microns?
200 mesh sieve size corresponds to _____________ microns?
A. 24
B. 74
C. 154
D. 200
Which of the following is a pressure filter ?
Which of the following is a pressure filter ?
A. Leaf filter (Moore filter)
B. Plate and flame filter
C. Rotary drum filter
D. Sand filter
Which of the following is not used as a filter medium in case of corrosive liquids?
Which of the following is not used as a filter medium in case of corrosive liquids?
A. Nylon
B. Glass cloth
C. Metal cloth of monel or stainless steel
D. Cotton fabric
The main size reduction operation in ultrafine grinders is_____________?
The main size reduction operation in ultrafine grinders is_____________?
A. Cutting
B. Attrition
C. Compression
D. Impact
Mixing of plastic solids is generally facilitated by___________________?
Mixing of plastic solids is generally facilitated by___________________?
A. Dispersion
B. Mastication
C. Kneading
D. None of these
With increase in drum speed, in a rotary drum filter, the filtration rate_______________?
With increase in drum speed, in a rotary drum filter, the filtration rate_______________?
A. Increases
B. Increases linearly
C. Decreases
D. Is not affected
Gravity settling process is not involved in the working of a________________?
Gravity settling process is not involved in the working of a________________?
A. Hydrocyclone
B. Classifier
C. Dorr-thickener
D. Sedimentation tank