To produce talcum powder, use_____________________?
To produce talcum powder, use_____________________?
A. Ball mill
B. Hammer mill
C. Jet mill
D. mill
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Energy consumed for crushing one ton of material ranges from ______________ kWh?
Energy consumed for crushing one ton of material ranges from ______________ kWh?A. 0.01 to 0.1
B. 0.5 to 1.5
C. 2 to 3.5
D. 4 to 5Use of baffles in agitators help in minimising the ______________ tendency?
Use of baffles in agitators help in minimising the ______________ tendency?A. Swirling
B. Vortexing
C. Both A. & B.
D. Neither A. nor B.Xanthates are used in the froth floatation process as a/an _______________________?
Xanthates are used in the froth floatation process as a/an _______________________?A. Conditioner
B. Frother
C. Collector
D. ActivatorSphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle)?
Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle)?A. 6.V/D.S
B. V/6D.S
C. D.S/V
D. V/D.SAdditives used for promoting the flocculation of particles is a/an _____________________?
Additives used for promoting the flocculation of particles is a/an _____________________?A. Electrolyte
B. Surface active agent
C. Both A. & B.
D. Neither A. nor B.Which of the following clay mixing devices is vacuum operated for deairation of clay ?
Which of the following clay mixing devices is vacuum operated for deairation of clay ?A. Banbury mixer
B. Pug mill
C. Muller-mixer
D. None of these