Mechanical Operations Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle). V/D.S S/V V/6D.S 6.V/D.S V/D.S S/V V/6D.S 6.V/D.S ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations According to Taggart's rule for selecting between a gyratory crusher and a jaw crusher; the later should be used, if the hourly tonnage to be crushed divided by the square of the gape expressed in cm is less than 0.0184 0.184 1.84 0.00184 0.0184 0.184 1.84 0.00184 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) π(=A/D²) AD/V None of these π/6(=V/D³) π(=A/D²) AD/V None of these π/6(=V/D³) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The operating speed of a ball mill should be __________ the critical speed. Slightly more than At least equal to Less than Much more than Slightly more than At least equal to Less than Much more than ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A widely used size reduction equipment for __________ is Bradford breaker. Wheat Coal Iron core Talc Wheat Coal Iron core Talc ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A screen is said to be blinded, when the Screen capacity is abruptly increased Undersizes are retained in oversize fraction Oversizes are present in undersize fraction Screen is plugged with solid particles Screen capacity is abruptly increased Undersizes are retained in oversize fraction Oversizes are present in undersize fraction Screen is plugged with solid particles ANSWER DOWNLOAD EXAMIANS APP
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