A. Recovery/rejection
B. Recovery
C. Rejection
D. None of these
Related Mcqs:
- Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?
A. British standard screens
B. German standard screens (DIN 1171) etc
C. American standard screens (ASTM and Tyler standard screens)
D. All A., B. and C. - increasing the capacity of a screen _______________ the screen effectiveness?
A. Decreases
B. Increases
C. Does not effect
D. None of these - The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is_________________?
A. 1.5
B. 1
C. √2
D. None of these - A 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_________________?
A. 0.50
B. 0.58
C. 0.68
D. 0.62 - Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of ____________ mm?
A. 0.007
B. 0.30
C. 50
D. 0.014 - Screen capacity is proportional to (where, S = screen aperture)____________________?
A. S
B. 1/S
C. S2
D. √S - The unit of specific cake resistance is______________________?
A. gm/cm2
B. cm/gm
C. cm/gm2
D. gm/gm - In screen analysis, the notation +5 mm/-10 mm means particles passing through ____________________?
A. 10 mm screen and retained on 5 mm screen
B. 5 mm screen and retained on 10 mm screen
C. Both 5 mm and 10 mm screens
D. Neither 5 mm nor 10 mm screen - With increase in the capacity of screens, the screen effectiveness__________________?
A. Remains unchanged
B. Increases
C. Decreases
D. Decreases exponentially - 200 mesh screen means 200 openings per_____________________?
A. cm2
B. cm
C. inch
D. inch2
