Hydraulics and Fluid Mechanics in ME Which of the following statement is correct as regard to water wheels? All of these They are suitable even for low water heads They have slow speeds They give constant efficiency, even if the discharge is not constant All of these They are suitable even for low water heads They have slow speeds They give constant efficiency, even if the discharge is not constant ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Francis turbine is best suited for Medium head application from 24 to 180 m Low head installation up to 30 m All types of heads High head installation above 180 m Medium head application from 24 to 180 m Low head installation up to 30 m All types of heads High head installation above 180 m ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific speed of a centrifugal pump, delivering 750 liters of water per second against a head of 15 meters at 725 r.p.m., is 248 r.p.m 48.2 r.p.m 82.4 r.p.m. 24.8 r.p.m. 248 r.p.m 48.2 r.p.m 82.4 r.p.m. 24.8 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When a body is placed over a liquid, it will float if Gravitational force is more than the up-thrust of the liquid Gravitational force is equal to the up-thrust of the liquid None of these Gravitational force is less than the up-thrust of the liquid Gravitational force is more than the up-thrust of the liquid Gravitational force is equal to the up-thrust of the liquid None of these Gravitational force is less than the up-thrust of the liquid ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet) (1 - cos φ)/2 (1 - sin φ)/2 (1 + cos φ)/2 (1 + sin φ)/2 (1 - cos φ)/2 (1 - sin φ)/2 (1 + cos φ)/2 (1 + sin φ)/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a centrifugal pump, the regulating valve is provided on the Casing Delivery pipe Impeller Suction pipe Casing Delivery pipe Impeller Suction pipe ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS