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

Mechanical Operations
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

0.5

0.68

0.58

0.62

0.5

0.68

0.58

0.62

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Mechanical Operations
The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is

1.5

None of these

?2

1

1.5

None of these

?2

1

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Mechanical Operations
Which of the following mineral dressing operations is termed as 'comminution'?

None of these

Panning

Tabling

Spiralling

None of these

Panning

Tabling

Spiralling

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Mechanical Operations
Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate)

S

1/R

1/μ

All of these

S

1/R

1/μ

All of these

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Mechanical Operations
Which of the following minerals is not subjected to magnetic separation method?

Chromite

Rutile

Galena

Siderite

Chromite

Rutile

Galena

Siderite

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Mechanical Operations
For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid?

Leva

Blake-Plummer equation

Kozney-Karman equation

None of these

Leva

Blake-Plummer equation

Kozney-Karman equation

None of these

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Mechanical Operations

Mechanical Operations 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

Mechanical Operations The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is

Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'?

Mechanical Operations Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate)

Mechanical Operations Which of the following minerals is not subjected to magnetic separation method?

Mechanical Operations For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid?

Mechanical Operations
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

Mechanical Operations
The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is

Mechanical Operations
Which of the following mineral dressing operations is termed as 'comminution'?

Mechanical Operations
Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate)

Mechanical Operations
Which of the following minerals is not subjected to magnetic separation method?

Mechanical Operations
For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid?