Mechanical Operations Power consumption during turbulent flow in agitation tank is proportional to the __________ of the liquid. Thermal conductivity Surface tension Viscosity Density Thermal conductivity Surface tension Viscosity Density ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the Flocculation Coagulation Clarification Sedimentation Flocculation Coagulation Clarification Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Addition of filter aid to the slurry before filtration is done to ...... of the cake. Increase the porosity Decrease the compressibility co-efficient Decrease the porosity Increase the compressibility co-efficient Increase the porosity Decrease the compressibility co-efficient Decrease the porosity Increase the compressibility co-efficient ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called Classification Thickening Clarification Froth floatation Classification Thickening Clarification Froth floatation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to N° N³ N² N¹ N° N³ N² N¹ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re0.0 Po ∝ Re-1.0 Po ∝ Re0.5 Po ∝ Re1.0 Po ∝ Re0.0 Po ∝ Re-1.0 Po ∝ Re0.5 Po ∝ Re1.0 ANSWER DOWNLOAD EXAMIANS APP
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