Mechanical Operations

The crushed material received for separation is called feed or_________________?

Byadmin February 18, 2019August 22, 2021

The crushed material received for separation is called feed or_________________?

A. Tailing
B. Heading
C. Concentrate
D. Middling

Mechanical Operations

The value of ‘angle of nip’ is generally about__________________?

The value of ‘angle of nip’ is generally about__________________?

A. 16°
B. 32°
C. 52°
D. 64°

Read More The value of ‘angle of nip’ is generally about__________________?
Mechanical Operations

Which one is a filter aid ?

Which one is a filter aid ?

A. Canvas fabric
B. Diatomaceous earth
C. Calcined lime
D. None of these

Read More Which one is a filter aid ?
Mechanical Operations

Which of the following relationships between co-efficient of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct ?

Which of the following relationships between co-efficient of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct ?

A. μ > tan α
B. μ ≥ tan α
C. μ > tan 2α
D. μ ≤ tan α

Read More Which of the following relationships between co-efficient of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct ?
Mechanical Operations

Ribbon blenders are exclusively meant for __________________?

Ribbon blenders are exclusively meant for __________________?

A. Blending miscible liquids
B. Non-flowing powder and thin pastes
C. Bath mixing
D. Continuous mixing

Read More Ribbon blenders are exclusively meant for __________________?
Mechanical Operations

Use of baffles in agitators help in minimising the ______________ tendency?

Use of baffles in agitators help in minimising the ______________ tendency?

A. Swirling
B. Vortexing
C. Both A. & B.
D. Neither A. nor B.

Read More Use of baffles in agitators help in minimising the ______________ tendency?
Mechanical Operations

If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the __________________?

If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the __________________?

A. Sedimentation
B. Flocculation
C. Dispersion
D. Centrifugation

Read More If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the __________________?

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