Mechanical Operations MCQ
Test your knowledge with important Mechanical Operations MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Mechanical Operations MCQs on Bissoy. Bissoy App
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Filtration rate through a filter cake is proportional to (where, S = filtering surface, R = specific cake resistance, $$\mu $$ = viscosity of the filtrate)
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Coal is finally pulverised to 200 mesh size for burning in boilers by a
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__________ conveyors are also called scrapers.
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Sulphuric acid mist is arrested by using a __________ scrubber.
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Gummy & sticky materials like molasses, sugar etc. are best transported/handled by using a __________ conveyor.
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Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a __________ conveyor.
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The equivalent diameter of channel of a constant non-circular cross-section of 3 cm by 6 cm will be __________ cms.
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Work index is defined as the
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Which of the following is not a wet classifier?
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Which of the following is not a cutting machine?
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Which one is a filter aid?
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For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is
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In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the
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Moisture can be removed from lubricating oil using
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__________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.
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Filtration capacity of a rotary drum vacuum filter depends upon the
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Mixer used for rubber compounding is
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The energy consumed by a ball mill depends on
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The filter medium resistance is controlled by
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With increase in drum speed, in a rotary drum filter, the filtration rate
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Mass flow of granular solid (M) through a circular opening of dia, D follows
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Maximum size reduction in a fluid energy mill is achieved by
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Fluid medium used in the classification technique of mineral beneficiation is
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In a roll crusher, the specific power consumption and the production rate is affected by the
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Mixing of light fine powder such as insecticides is done by
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Froth floatation is the most suitable for treating
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The most common filter aid is
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Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator?
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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)
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Size reduction of __________ is accomplished in steam heated rollers and roll crushers.