Mechanical Operations Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ). 1/√μ √μ 1/μ 1/μ² 1/√μ √μ 1/μ 1/μ² ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) M . ρ/Vp M/ρ . Vp M . Vp/ρ Vp/m . ρ M . ρ/Vp M/ρ . Vp M . Vp/ρ Vp/m . ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is the most commonly used 'filter aid'. Vermiculite Diatomaceous earth Semi-plastic clay Fuller's earth Vermiculite Diatomaceous earth Semi-plastic clay Fuller's earth ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is 22.1 μm/s 1 μm/s 0.90 μm/s 0.02 μm/s 22.1 μm/s 1 μm/s 0.90 μm/s 0.02 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pine oil used in froth floatation technique acts as a/an Frother Activator Modifier Collector Frother Activator Modifier Collector ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aid is used to Increase the porosity of the cake Decrease the pressure drop Increase the rate of filtration Act as a support base for the septum Increase the porosity of the cake Decrease the pressure drop Increase the rate of filtration Act as a support base for the septum ANSWER DOWNLOAD EXAMIANS APP
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