Mechanical Operations Filter aid is used to Decrease the pressure drop Increase the porosity of the cake Increase the rate of filtration Act as a support base for the septum Decrease the pressure drop Increase the porosity of the cake Increase the rate of filtration Act as a support base for the septum ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pick out the wrong statement pertaining to the roll crushers. For hard material's crushing, the reduction ratio should not exceed 4 Maximum feed size determines the required roll diameter Reduction ratio and differential roll speed affect production rate & energy consumed per unit of surface produced Both the rolls run necessarily at the same speed For hard material's crushing, the reduction ratio should not exceed 4 Maximum feed size determines the required roll diameter Reduction ratio and differential roll speed affect production rate & energy consumed per unit of surface produced Both the rolls run necessarily at the same speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The opening of a 200 mesh screen (Taylor series) is 74 mili-microns 0.0074 mm 0.0047 cm 0.0074 cm 74 mili-microns 0.0074 mm 0.0047 cm 0.0074 cm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed? Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Dry grindng of large particles in un-baffed mills Wet grinding in high viscous suspension Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Dry grindng of large particles in un-baffed mills Wet grinding in high viscous suspension ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultrafine grinders operate principally by Slow compression Impact Cutting action Attrition Slow compression Impact Cutting action Attrition ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is not a function of Screening mechanism Its openings size Atmospheric humidity Screening surface Screening mechanism Its openings size Atmospheric humidity Screening surface ANSWER DOWNLOAD EXAMIANS APP
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