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

None of these

0.1

0.6

0.4

None of these

0.1

0.6

0.4

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Mechanical Operations
A pebble mill

Employs flints or ceramic pebbles as the grinding medium

Both B and C

Is a tube mill lined with ceramic or other non-metallic liner

Is a ball mill

Employs flints or ceramic pebbles as the grinding medium

Both B and C

Is a tube mill lined with ceramic or other non-metallic liner

Is a ball mill

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Mechanical Operations
Which of the following is not an industrial screening equipment?

Grizzly

Sharpies centrifuge

Trommel

Vibrating screen

Grizzly

Sharpies centrifuge

Trommel

Vibrating screen

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Mechanical Operations
In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing.

Secondary

Fine

Primary

Ultrafine

Secondary

Fine

Primary

Ultrafine

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Mechanical Operations
A belt conveyor used for the transportation of materials can

All of these

Run upto 1 km

Travel at a speed upto 300 metres/minute

Handle materials upto 5000 tons/hr

All of these

Run upto 1 km

Travel at a speed upto 300 metres/minute

Handle materials upto 5000 tons/hr

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Mechanical Operations
Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )

D2.5

D

1/D

1/D2.5

D2.5

D

1/D

1/D2.5

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Mechanical Operations

Mechanical Operations A pebble mill

Mechanical Operations Which of the following is not an industrial screening equipment?

Mechanical Operations In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing.

Mechanical Operations A belt conveyor used for the transportation of materials can

Mechanical Operations Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )

Mechanical Operations
A pebble mill

Mechanical Operations
Which of the following is not an industrial screening equipment?

Mechanical Operations
In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing.

Mechanical Operations
A belt conveyor used for the transportation of materials can

Mechanical Operations
Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )