The most suitable equipment used to devulcanise rubber scrap and to make water dispersion & rubber solution is a __________________?

Byadmin February 18, 2019August 22, 2021

The most suitable equipment used to devulcanise rubber scrap and to make water dispersion & rubber solution is a __________________?

A. Boundary mixer
B. Propeller agitator
C. Sharpies centrifuge
D. None of these

Mechanical Operations

Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their_________________?

Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their_________________?

A. Particle sizes
B. Densities
C. Terminal velocities
D. None of these

Read More Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their_________________?
Mechanical Operations

The capacity of a classifier in ‘tons of solid/hr’ is given by (where, A = cross-sectional area in m2, V = rising velocity of fluid in m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids in kg/m3)_________________?

The capacity of a classifier in ‘tons of solid/hr’ is given by (where, A = cross-sectional area in m2, V = rising velocity of fluid in m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids in kg/m3)_________________?

A. 3.6 AVS.ρ
B. 3.6 A.V.ρ
C. 3.6 A.S. ρ
D. 3.6 AVS/ρ
Answer: Option

Read More The capacity of a classifier in ‘tons of solid/hr’ is given by (where, A = cross-sectional area in m2, V = rising velocity of fluid in m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids in kg/m3)_________________?
Mechanical Operations

In classification, particles are said to be equal settling, if they have the same terminal velocities in the_______________?

In classification, particles are said to be equal settling, if they have the same terminal velocities in the_______________?

A. Different fluids
B. Same fluid
C. Same field of force
D. Both B. and C.

Read More In classification, particles are said to be equal settling, if they have the same terminal velocities in the_______________?
Mechanical Operations

As per Taggart’s formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms) ?

As per Taggart’s formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms) ?

A. LS
B. 93 LS
C. 250 LS
D. √(LS)

Read More As per Taggart’s formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms) ?
Mechanical Operations

Rittinger’s crushing law states that_____________________?

Rittinger’s crushing law states that_____________________?

A. Work required to form a particle of any size is proportional to the square of the surface to
volume ratio of the product
B. Work required to form a particle of a particular size is proportional to the square root of the
surface to volume ratio of the product
C. Work required in crushing is proportional to the new surface created
D. For a given machine and feed, crushing efficiency is dependent on the size of the feed &
product

Read More Rittinger’s crushing law states that_____________________?
Mechanical Operations

Gravity stamp mill is meant for the ___________________ crushing?

Gravity stamp mill is meant for the ___________________ crushing?

A. Primary
B. Intermediate
C. Fine
D. Ultrafine

Read More Gravity stamp mill is meant for the ___________________ crushing?

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