Fluid Mechanics Bed pressure drop in an air fluidised bed of catalyst particles (ρp = 200 kg/m³, Dp = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is 90 60 45 30 90 60 45 30 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062. 12 m 11 m 20 m 10 m 12 m 11 m 20 m 10 m ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What causes cavitation in centrifugal pump? High suction velocity Low suction pressure Low barometric pressure High suction pressure High suction velocity Low suction pressure Low barometric pressure High suction pressure ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Water is flowing at 1 m/sec through a pipe (of 10 cm I.D) with a right angle bend. The force in Newtons exerted on the bend by water is 5√2π 5π/√2 5π/2 10√2π 5√2π 5π/√2 5π/2 10√2π ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Prandtl mixing length is None of these Applicable to laminar flow problems Zero at the pipe wall A universal constant None of these Applicable to laminar flow problems Zero at the pipe wall A universal constant ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The bulk modulus of elasticity of a liquid Is zero for incompressible liquid Increases with pressure Is independent of temperature & pressure Decreases with pressure Is zero for incompressible liquid Increases with pressure Is independent of temperature & pressure Decreases with pressure ANSWER DOWNLOAD EXAMIANS APP