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Mechanical Operations

Mechanical Operations
Run of mine (ROM) coal is crushed by a __________ for use in domestic ovens.

Hammer crusher
Ball mill
Tube mill
Jaw crusher

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Mechanical Operations
A __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream.

Strainer
Thickener
Classifier
Clarifier

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Mechanical Operations
Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles)

Vp/m . ρ
M . Vp/ρ
M . ρ/Vp
M/ρ . Vp

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Mechanical Operations
As per Taggart's formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms )

√LS
LS
250 LS
93 LS

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Mechanical Operations
Size reduction does not occur due to compression in case of

Smooth roll crushers
Gyratory crushers
Rod mills
Jaw crushers

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Mechanical Operations
Fluid energy mill comes in the category of

Ultrafine grinder
Grinder
Crusher
Cutter

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MORE MCQ ON Mechanical Operations

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