Mechanical Operations Size reduction does not occur due to compression in case of Rod mills Gyratory crushers Jaw crushers Smooth roll crushers Rod mills Gyratory crushers Jaw crushers Smooth roll crushers ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For efficient grinding, ball mills must be operated At a speed more than the critical speed With minimum possible small balls At a speed less than the critical speed At a speed equal to the critical speed At a speed more than the critical speed With minimum possible small balls At a speed less than the critical speed At a speed equal to the critical speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gelatinous solid (which plug the septum) can be filtered by a __________ filter. Precoat Vacuum leaf Plate and frame Sparkler Precoat Vacuum leaf Plate and frame Sparkler ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively). (S/V)²p (S/V)p √(S/V)p (S/V)f (S/V)²p (S/V)p √(S/V)p (S/V)f ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by Φs = 6 dp Sp/Vp Φs = 6 Vp/dp sp Φs = dp Sp/Vp Φs = Vp/dp sp Φs = 6 dp Sp/Vp Φs = 6 Vp/dp sp Φs = dp Sp/Vp Φs = Vp/dp sp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not used as a surface active agent in a flocculation operation? Lime Sodium silicate Quartz Alumina Lime Sodium silicate Quartz Alumina ANSWER DOWNLOAD EXAMIANS APP
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