Mechanical Operations A propeller agitator Produces mainly axial flow Is used for mixing high viscosity pastes Runs at very slow speed (2 rpm) All of these Produces mainly axial flow Is used for mixing high viscosity pastes Runs at very slow speed (2 rpm) All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter) 0.5 D 2 D D 1.5 D 0.5 D 2 D D 1.5 D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gelatinous solid (which plug the septum) can be filtered by a __________ filter. Vacuum leaf Plate and frame Sparkler Precoat Vacuum leaf Plate and frame Sparkler Precoat ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration When half the filtrate has been obtained At the end of filtration, but decreases with time subsequently At time zero At the end of filtration When half the filtrate has been obtained At the end of filtration, but decreases with time subsequently At time zero At the end of filtration ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μrn is 6.35 kWh/ton 9.0 kWh/ton 25.4 kWh/ton 18 kWh/ton 6.35 kWh/ton 9.0 kWh/ton 25.4 kWh/ton 18 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In bag filters, filter fabrics are never made of Nylon fibres Metallic wire woven mesh Polyester fibres Cotton fibres Nylon fibres Metallic wire woven mesh Polyester fibres Cotton fibres ANSWER DOWNLOAD EXAMIANS APP
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