Mechanical Operations Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are Sulphates Silicates & phosphates Bi-carbonates Carbonates Sulphates Silicates & phosphates Bi-carbonates Carbonates ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is 1 √3 √2 0.5 1 √3 √2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Two particles are called to be equal settling, if they are having the same. None of these Terminal velocities in the same fluid & in the same field of force Specific gravity Size None of these Terminal velocities in the same fluid & in the same field of force Specific gravity Size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter medium resistance is important during the __________ of filtration. Early stages Final stages Entire process None of these Early stages Final stages Entire process None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vertical transportation of materials can be done by a/an Both B & C Pneumatic conveyor Apron conveyor Bucket elevator Both B & C Pneumatic conveyor Apron conveyor Bucket elevator 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) 1.5 D 2 D D 0.5 D 1.5 D 2 D D 0.5 D ANSWER DOWNLOAD EXAMIANS APP
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