Fluid Mechanics The ratio of inertial forces to viscous forces is called the __________ number. Froude Weber Reynold Mach Froude Weber Reynold Mach ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Foot valves are provided in the suction line of a centrifugal pump to Control the liquid discharge Minimise the fluctuation in discharge Avoid priming, every time we start the pump Remove the contaminant present in the liquid Control the liquid discharge Minimise the fluctuation in discharge Avoid priming, every time we start the pump Remove the contaminant present in the liquid ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases. Head of the liquid pumped All of these BHP required by the pump NPSH required Head of the liquid pumped All of these BHP required by the pump NPSH required ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 10³ VOM + 10.94 x 10⁶ V²OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is 28 mm/s 12 mm/s 16 mm/s 24 mm/s 28 mm/s 12 mm/s 16 mm/s 24 mm/s ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following is used for very accurate measurement of flow of gas at low velocity? Segmental orificemeter Hot wire annemometer Pitot tube Rotameter Segmental orificemeter Hot wire annemometer Pitot tube Rotameter ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In magnetic flow meters, voltage generation is Due to the motion of conducting fluid through an externally generated uniform field Neither A nor B Proportional to the fluid velocity Both A and B Due to the motion of conducting fluid through an externally generated uniform field Neither A nor B Proportional to the fluid velocity Both A and B ANSWER DOWNLOAD EXAMIANS APP