Which of the following is not a cutting machine ?
Which of the following is not a cutting machine ?
A. Dicers
B. Knife cutters
C. Slitters
D. Tube mills
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The energy consumed by a ball mill depends on__________________?
The energy consumed by a ball mill depends on__________________?A. Its speed
B. Its ball load
C. The density of the material being ground
D. All A., B. and C.About 2-3 hp, power per gallon of a thin liquid provides vigorous agitation in an agitator. ‘Power number’ in agitation is given by __________________?
About 2-3 hp, power per gallon of a thin liquid provides vigorous agitation in an agitator. ‘Power number’ in agitation is given by __________________?A. P. gc/n3. D2. ρ
B. P. gc. ρ/μ2
C. n3. D3. ρ/P. gc
D. P. gc/n2. D2. ρFiltration should be stopped in a filter press, if the_________________?
Filtration should be stopped in a filter press, if the_________________?A. Cake becomes very dense
B. Liquor stops flowing out to the discharge
C. Filtration pressure rises suddenly
D. Both B. & C.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__________________?
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.Cement clinker is reduced to fine size by a _____________________?
Cement clinker is reduced to fine size by a _____________________?A. Roll crusher
B. Ball mill
C. Tube mill
D. Hammer millWet grinding in a revolving mill ______________ as compared to dry grinding ?
Wet grinding in a revolving mill ______________ as compared to dry grinding ?A. Gives less wear on chamber walls
B. Requires more energy
C. Increases capacity
D. Complicates handling of the product