Chemical Engineering Basics
The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it, is defined as the

Terminal velocity
Elutriation velocity
Minimum fluidisation velocity
Superficial velocity

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Chemical Engineering Basics
Compression ratio of an I.C. engine is the ratio of the

Volume of air in cylinder before compression to that after compression
Pressure after compression to that before compression
Clearance volume to the volume swept by piston per stroke
None of these

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