A. tons/hr
B. tons/ft2
C. Both A. & B.
D. tons/hr-ft2
Screen capacity is expressed in terms of____________________? Read More »
Mechanical Operations A. Surface energy created by crushing to the energy absorbed by the solid
B. Energy absorbed by the solid to that fed to the machine
C. Energy fed to the machine to the surface energy created by crushing
D. Energy absorbed by the solid to the surface energy created by crushing
Crushing efficiency is the ratio of the ______________________ ? Read More »
Mechanical Operations A. Canvas fabric
B. Diatomaceous earth
C. Calcined lime
D. None of these
Which one is a filter aid ? Read More »
Mechanical Operations A. Produces mainly axial flow
B. Is used for mixing high viscosity pastes
C. Runs at very slow speed (2 rpm)
D. All A., B. and C.
A propeller agitator_______________? Read More »
Mechanical Operations A. Entails less labor cost
B. Facilitates filtration under higher pressure
C. Provides more effective washing
D. All A., B. & C.
Shell and leaf filter as compared to plate and frame filter _____________________? Read More »
Mechanical Operations A. 1.5
B. 1
C. < 1
D. > 1
Length/diameter ratio of a ball mill is __________________ ? Read More »
Mechanical Operations A. Mulling
B. Kneading
C. Dispersion
D. None of these
Mixing mechanism employed in a pan mixer is by ________________? Read More »
Mechanical Operations A. 0.01 L.S
B. 0.087 L.S
C. L.S
D. L.S/0.087
A. Carbonates
B. Sulphates
C. Silicates & phosphates
D. Bi-carbonates
A. Tearing (shear) and compression
B. Impact and attrition
C. Both A. & B.
D. Neither A. nor B.
Toothed roll crushers achieve size reduction by___________________? Read More »
Mechanical Operations