Q. All resistances during washing of cake

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Q. Ore concentration by jigging is based on the difference in the __________ of the particles.

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Q. Size measurement of ultrafine particles can be best expressed in terms of

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Q. Reduction ratio of crushers is the

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Q. Which is a secondary crusher for a hard & tough stone ?

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Q. Cyclones are used primarily for separating

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Q. There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores.

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Q. Separation of isotopes is generally done using a/an __________ centrifuge.

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Q. Temperature of the product during ultrafine grinding

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Q. Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the

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Q. Width and speed of a conveyor belt depends upon the __________ of the material.

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Q. Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for

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Q. Pick out the wrong statement.

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Q. Which of the following size reduction equipments employs mainly attrition for ultrafine grinding ?

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Q. Tank filter (e.g., Nutsch filter) is

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Q. Which of the following gives the crushing energy required to create new surface ?

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Q. In filtration, the use of 'filter aid' helps in

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Q. Gizzlies are used for separating __________ solids.

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Q. Which of the following clay mixing devices is vacuum operated for deairation of clay?

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Q. Pick out the material having minimum Rittinger's number.

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