Hydraulics and Fluid Mechanics in ME According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies Cube of fan speed Directly as fan speed Square of fan speed Square root of fan speed Cube of fan speed Directly as fan speed Square of fan speed Square root of fan speed ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is 0.5 v₁²/2g 0.375 v₂²/2g v₁²/2g v₂²/2g 0.5 v₁²/2g 0.375 v₂²/2g v₁²/2g v₂²/2g ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be 14 kN/m2 12 kN/m2 4 kN/m2 10 kN/m2 14 kN/m2 12 kN/m2 4 kN/m2 10 kN/m2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The viscosity of water is __________ than that of mercury. Higher Lower None of these Same as Higher Lower None of these Same as 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? Francis turbine Pelton wheel with one nozzle Kaplan turbine Pelton wheel with two or more nozzles Francis turbine Pelton wheel with one nozzle Kaplan turbine Pelton wheel with two or more nozzles ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In order to avoid cavitation in centrifugal pumps The suction pressure should be high The suction pressure should be low The delivery pressure should be low The delivery pressure should be high The suction pressure should be high The suction pressure should be low The delivery pressure should be low The delivery pressure should be high ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS