Fluid Mechanics The equivalent diameter for flow through a rectangular duct of width B and height H is 2HB/(H + B) HB/2(H + B) HB/(H + B) 4HB/(H + B) 2HB/(H + B) HB/2(H + B) HB/(H + B) 4HB/(H + B) 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. II, IV, V I, II, III I, II, V II, III, V II, IV, V I, II, III I, II, V II, III, V ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The bulk modulus of elasticity of a liquid Decreases with pressure Increases with pressure Is independent of temperature & pressure Is zero for incompressible liquid Decreases with pressure Increases with pressure Is independent of temperature & pressure Is zero for incompressible liquid ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In frictional fluid flow, the quantity, P/ρ + V²/2gc + gz/gc, is Constant along a streamline Increased in the direction of flow None of these Not constant along a streamline Constant along a streamline Increased in the direction of flow None of these Not constant along a streamline ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The unit of velocity head is ft-lbf/lb ft-lb/sec ft-lbf/sec ft-lb/ft³ ft-lbf/lb ft-lb/sec ft-lbf/sec ft-lb/ft³ ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The value of critical Reynolds number for pipe flow is 1300 10000 None of these 100000 1300 10000 None of these 100000 ANSWER DOWNLOAD EXAMIANS APP
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