Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. Shape Specific gravities Wettability None of these Shape Specific gravities Wettability None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines? Tube mill Rod mill Compartment mill Pebble mill Tube mill Rod mill Compartment mill Pebble mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not an ultrafine grinder (colloid mill)? Toothed roll crusher Agitated mills and fluid energy mills Hammer mills with internal classification Micronizers Toothed roll crusher Agitated mills and fluid energy mills Hammer mills with internal classification Micronizers ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is the most commonly used 'filter aid'. Fuller's earth Diatomaceous earth Vermiculite Semi-plastic clay Fuller's earth Diatomaceous earth Vermiculite Semi-plastic clay ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ centrifuge is the most suitable for separation of non-friable crystals. Perforated horizontal basket continuous Tubular bowl Suspended batch basket Disc-bowl Perforated horizontal basket continuous Tubular bowl Suspended batch basket Disc-bowl ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 0.66 2.76 0.5 1 0.66 2.76 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
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