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 Not possible Trimming the impeller size to the required size by machining Designing new impeller Some other alterations in the impeller Not possible Trimming the impeller size to the required size by machining Designing new impeller Some other alterations in the impeller ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The tendency of a liquid surface to contract is due to the following property viscosity surface tension adhesion cohesion viscosity surface tension adhesion cohesion ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit speed of the wheel is 20 r.p.m. 10 r.p.m. 40 r.p.m. 80 r.p.m. 20 r.p.m. 10 r.p.m. 40 r.p.m. 80 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When the Mach number is less than unity, the flow is called Super-sonic flow Sub-sonic flow Hyper-sonic flow Sonic flow Super-sonic flow Sub-sonic flow Hyper-sonic flow Sonic flow ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When an ideal fluid flows past a sphere highest intensity of pressure occurs around the circumference at right angles to flow lowest pressure intensity occurs at front stagnation point lowest pressure intensity occurs at rear stagnation point total drag is zero highest intensity of pressure occurs around the circumference at right angles to flow lowest pressure intensity occurs at front stagnation point lowest pressure intensity occurs at rear stagnation point total drag is zero ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Cavitation is caused by high pressure high velocity weak material low pressure high pressure high velocity weak material low pressure ANSWER DOWNLOAD EXAMIANS APP
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