Hydraulics and Fluid Mechanics in ME The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as Overall efficiency Volumetric efficiency Manometric efficiency Mechanical efficiency Overall efficiency Volumetric efficiency Manometric efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Cavitation is caused by weak material high pressure low pressure high velocity weak material high pressure low pressure high velocity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge over a triangular notch is Inversely proportional to H5/2 Directly proportional to H3/2 Inversely proportional to H3/2 Directly proportional to H5/2 Inversely proportional to H5/2 Directly proportional to H3/2 Inversely proportional to H3/2 Directly proportional to H5/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is (V1 - V2) / V1 V1² / (V1² - V2²) V1 / (V1 - V2) (V1² - V2²) / V1² (V1 - V2) / V1 V1² / (V1² - V2²) V1 / (V1 - V2) (V1² - V2²) / V1² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by Designing new impeller Not possible Trimming the impeller size to the required size by machining Some other alterations in the impeller Designing new impeller Not possible Trimming the impeller size to the required size by machining Some other alterations in the impeller ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The optimum value of vane exit angle for a centrifugal pump impeller is 10-15° 20-25° 50-60° 30-40° 10-15° 20-25° 50-60° 30-40° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS