Fluid Mechanics Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) d4/5 d2/3 √d d1/3 d4/5 d2/3 √d d1/3 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Uniform fluid flow occurs, when the derivative of the flow variables satisfy the following condition. ∂/∂t = constant ∂/∂s = 0 ∂/∂t = 0 ∂/∂t = constant ∂/∂t = constant ∂/∂s = 0 ∂/∂t = 0 ∂/∂t = constant ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will Increase Decrease Data insufficient to predict pressure drop Remain same Increase Decrease Data insufficient to predict pressure drop Remain same ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton's law of viscosity. (II) Newton's second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary. I, II, V I, II, III II, III, V II, IV, V I, II, V I, II, III II, III, V II, IV, V ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Purpose of relief valve in a reciprocating pump is to Reduce the discharge pressure Control the rate of discharge Facilitate unidirectional flow of liquid Protect the pump against developing excessive pressure Reduce the discharge pressure Control the rate of discharge Facilitate unidirectional flow of liquid Protect the pump against developing excessive pressure ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The distance between metacentre and __________ is called metacentric height. Centre of gravity Water surface None of these Centre of buoyancy Centre of gravity Water surface None of these Centre of buoyancy ANSWER DOWNLOAD EXAMIANS APP
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