Mechanical Operations What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls? 40° 16° 46° 32° 40° 16° 46° 32° ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'? Tabling None of these Spiralling Panning Tabling None of these Spiralling Panning ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Run of mine (ROM) coal is crushed by a __________ for use in domestic ovens. Tube mill Jaw crusher Ball mill Hammer crusher Tube mill Jaw crusher Ball mill Hammer crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a fine crusher? Blake jaw crusher Gyratory crusher Toothed roll crusher Dodge jaw crusher Blake jaw crusher Gyratory crusher Toothed roll crusher Dodge jaw crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its Easier grindability None of these Poor grindability High power consumption in grinding Easier grindability None of these Poor grindability High power consumption in grinding ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cumulative analysis for determining surface is more precise than differential analysis, because of the Fact that screening is more effective Assumption that all particles in a single fraction are equal in size None of these Assumption that all particles in a single fraction are equal in size, is not needed Fact that screening is more effective Assumption that all particles in a single fraction are equal in size None of these Assumption that all particles in a single fraction are equal in size, is not needed ANSWER DOWNLOAD EXAMIANS APP
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