Hydraulics and Fluid Mechanics in ME A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used? Francis turbine Pelton wheel with two or more nozzles Kaplan turbine Pelton wheel with one nozzle Francis turbine Pelton wheel with two or more nozzles Kaplan turbine Pelton wheel with one nozzle ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The value of friction factor ‘f’ for smooth pipes for Reynolds number 106 is approximately equal to 0.0001 0.001 0.1 0.01 0.0001 0.001 0.1 0.01 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Delivery head of a centrifugal pump is Directly proportional to N² Inversely proportional to N Directly proportional to N Inversely proportional to N² Directly proportional to N² Inversely proportional to N Directly proportional to N Inversely proportional to N² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific speed of a turbine is given by the equation N√P / H3/2 N√P / H5/4 N√P / H3 N√P / H² N√P / H3/2 N√P / H5/4 N√P / H3 N√P / H² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The torque required to overcome viscous resistance of a collar bearing is (where R1 and R2 = External and internal radius of collar) (μπ²N/60t) × (R₁² - R₂²) (μπ²N/60t) × (R₁ - R₂) μπ²N/60t) × (R₁³ - R₂³) (μπ²N/60t) × (R₁⁴ - R₂⁴) (μπ²N/60t) × (R₁² - R₂²) (μπ²N/60t) × (R₁ - R₂) μπ²N/60t) × (R₁³ - R₂³) (μπ²N/60t) × (R₁⁴ - R₂⁴) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is between 1.5 d and 2d less than d between d and 1.5 d greater than 2d between 1.5 d and 2d less than d between d and 1.5 d greater than 2d ANSWER DOWNLOAD EXAMIANS APP
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