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92. Increasing the solids loading ratio means [A] Increasing the mass flowrate of [C] Increasing the pressure drop solids [E] Decreasing the mass flowrate of [D] All of the above air 93. It is the ratio of inertial and gravitational forces [A] Reynolds Number [C] Froucle Number [B] Prandtl Number [D] All of the above 94. The characteristic length of a square pipe for the computation of Reynolds number is [A] Equal to the diameter of the [C] Equal to the area of the pipe pipe [B] Equal to the length of the pipe [D] None of the above