Mechanical Operations Which is a secondary crusher for a hard & tough stone? Impact crusher Cone crusher Jaw crusher Toothed roll crusher Impact crusher Cone crusher Jaw crusher Toothed roll crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen efficiency is None of these Recovery/rejection Rejection Recovery None of these Recovery/rejection Rejection Recovery ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter (d) as √d D 1/d D² √d D 1/d D² ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The critical speed of a trommel (N) is related to its dia (D) as N ∝ √D N ∝ D N ∝ 1/D N ∝ 1/√D N ∝ √D N ∝ D N ∝ 1/D N ∝ 1/√D 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? Wet grinding in high viscous suspension Dry grindng of large particles in un-baffed mills Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) Wet grinding in high viscous suspension Dry grindng of large particles in un-baffed mills Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Fibrous material is broken by a Ball mill Squirrel-cage disintegrator Tube mill Rollcrusher Ball mill Squirrel-cage disintegrator Tube mill Rollcrusher ANSWER DOWNLOAD EXAMIANS APP