A. Sparger
B. Kneader
C. Masticator
D. None of these
Dispersion of a gas through liquid is done by using a__________________? Read More »
Mechanical Operations A. 0.5 Wi
B. Wi
C. 1.34 Wi
D. 3.34 Wi
A. Titanium oxide
B. Calcium oxide
C. Cobalt oxide
D. Manganese oxide
Which of the following oxides is not present in hematite iron ore ? Read More »
Mechanical Operations A. Reducing the filtration pressure
B. Accelerating the rate of filtration
C. Deplugging the filter medium
D. Enhancing the cake porosity in case of a dense impermeable cake
In filtration, the use of ‘filter aid’ helps in__________________? Read More »
Mechanical Operations A. Cresylic acid
B. Copper sulphate
C. Calcium carbonate
D. Sodium carbonate
A. Continuously increases
B. Continuously decreases
C. Remain constant throughout
D. May increase or decrease; depends on the pressure
The filtrate flow rate in constant pressure filtration___________________? Read More »
Mechanical Operations A. Coarse feed requires a larger ball
B. Fine feed requires a larger ball
C. Operating speed should be more than the critical speed
D. None of these
In case of a ball mill ? Read More »
Mechanical Operations A. Coagulation
B. Flocculation
C. Sedimentation
D. Clarification
A. Have greater capacity per unit of discharge area
B. Crush intermittently
C. Are less suitable for coarse materials
D. Have less steady power consumption
Gyratory crushers compared to the reciprocating jaw crushers__________________? Read More »
Mechanical Operations A. Blake jaw
B. Toothed roll
C. Gyratory
D. None of these
