A suspension of glass beads in ethylene glycol has a hindered settling velocity of 1.7 mm/s, while the terminal settling velocity of a single glass bead in ethylene glycol is 17 mm/s. If the Richardson-Zaki hindered settling index is 4.5, the volume fraction of solids in the suspension is

Mechanical Operations
A suspension of glass beads in ethylene glycol has a hindered settling velocity of 1.7 mm/s, while the terminal settling velocity of a single glass bead in ethylene glycol is 17 mm/s. If the Richardson-Zaki hindered settling index is 4.5, the volume fraction of solids in the suspension is

0.6

0.1

0.4

None of these

0.6

0.1

0.4

None of these

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Mechanical Operations
The process by which fine solids is removed from liquids is termed as

Sedimentation

Flocculation

Classification

Decantation

Sedimentation

Flocculation

Classification

Decantation

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Mechanical Operations
Size reduction of __________ is accomplished in steam heated rollers and roll crushers.

Waxes

Resins

Hard rubber

Gums

Waxes

Resins

Hard rubber

Gums

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Mechanical Operations
The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the

Electro-static precipitator

Gravity settling chamber

Venturi atomiser

Cyclone separator

Electro-static precipitator

Gravity settling chamber

Venturi atomiser

Cyclone separator

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Mechanical Operations
Tank filter (e.g., Nutsch filter) is

A leaf filter

Used for small scale filtration work

A high pressure filter

A continuous filter

A leaf filter

Used for small scale filtration work

A high pressure filter

A continuous filter

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Mechanical Operations
Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their

Densities

Particle sizes

None of these

Terminal velocities

Densities

Particle sizes

None of these

Terminal velocities

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Mechanical Operations

Mechanical Operations The process by which fine solids is removed from liquids is termed as

Mechanical Operations Size reduction of __________ is accomplished in steam heated rollers and roll crushers.

Mechanical Operations The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the

Mechanical Operations Tank filter (e.g., Nutsch filter) is

Mechanical Operations Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their

Mechanical Operations
The process by which fine solids is removed from liquids is termed as

Mechanical Operations
Size reduction of __________ is accomplished in steam heated rollers and roll crushers.

Mechanical Operations
The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the

Mechanical Operations
Tank filter (e.g., Nutsch filter) is

Mechanical Operations
Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their