Hydraulics and Fluid Mechanics in ME A channel is said to be of most economical cross-section, if It has minimum wetted perimeter It involves lesser excavation for the designed amount of discharge It gives maximum discharge for a given cross-sectional area and bed slope All of these It has minimum wetted perimeter It involves lesser excavation for the designed amount of discharge It gives maximum discharge for a given cross-sectional area and bed slope All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A flow through an expanding tube at constant rate is called Steady non-uniform flow Unsteady non-uniform flow Steady uniform flow Unsteady uniform flow Steady non-uniform flow Unsteady non-uniform flow Steady uniform flow Unsteady uniform flow ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which Develops unit power under unit speed Develops unit power under unit head Delivers unit discharge under unit speed Delivers unit discharge under unit head Develops unit power under unit speed Develops unit power under unit head Delivers unit discharge under unit speed Delivers unit discharge under unit head 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 Trimming the impeller size to the required size by machining Some other alterations in the impeller Not possible Designing new impeller Trimming the impeller size to the required size by machining Some other alterations in the impeller Not possible Designing new impeller ANSWER DOWNLOAD EXAMIANS APP
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? Pelton wheel with two or more nozzles Pelton wheel with one nozzle Francis turbine Kaplan turbine Pelton wheel with two or more nozzles Pelton wheel with one nozzle Francis turbine Kaplan turbine ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Air vessels in reciprocating pump are used to Reduce acceleration to minimum Increase pump efficiency Save pump from cavitations Smoothen flow Reduce acceleration to minimum Increase pump efficiency Save pump from cavitations Smoothen flow ANSWER DOWNLOAD EXAMIANS APP
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