Mechanical Operations

Mixing of plastic solids is generally facilitated by___________________?

Byadmin February 18, 2019August 22, 2021

Mixing of plastic solids is generally facilitated by___________________?

A. Dispersion
B. Mastication
C. Kneading
D. None of these

Mechanical Operations

Addition of filter aid to the slurry before filtration is done to _______________ of the cake?

Addition of filter aid to the slurry before filtration is done to _______________ of the cake?

A. Increase the porosity
B. Increase the compressibility co-efficient
C. Decrease the porosity
D. Decrease the compressibility co-efficient

Read More Addition of filter aid to the slurry before filtration is done to _______________ of the cake?
Mechanical Operations

Which of the following mechanical conveyors does not come under the division „scrapers‟ ?

Which of the following mechanical conveyors does not come under the division „scrapers‟ ?

A. Ribbon conveyor
B. Flight conveyor
C. Bucket elevators
D. Drag conveyor

Read More Which of the following mechanical conveyors does not come under the division „scrapers‟ ?
Mechanical Operations

Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the____________________?

Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the____________________?

A. Density separation
B. Differential wettability
C. Size
D. Volatile matter content

Read More Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the____________________?
Mechanical Operations

Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripheral velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m3 here, V =πND where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) ?

Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripheral velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m3 here, V =πND where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) ?

A. 3.6 V.W.Dr.ρ
B. 3.6 V.W. ρ
C. 3.6 W.Dr.ρ
D. 3.6 V.W.Dr/ρ

Read More Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripheral velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m3 here, V =πND where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) ?
Mechanical Operations

Gold ore concentration is mostly done using___________________?

Gold ore concentration is mostly done using___________________?

A. Jigging
B. Tabling
C. Froth floatation
D. Elutriation

Read More Gold ore concentration is mostly done using___________________?
Mechanical Operations

Handling of ashes and similar materials can be done best by a ______________ conveyor?

Handling of ashes and similar materials can be done best by a ______________ conveyor?

A. Flight
B. Drag or slat
C. Belt
D. Ribbon

Read More Handling of ashes and similar materials can be done best by a ______________ conveyor?

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