Hydraulics & Fluid Mechanics Mercury is often used in barometer because the height of barometer will be less it is the best liquid both (B) and (C) its vapour pressure is so low that it may be neglected the height of barometer will be less it is the best liquid both (B) and (C) its vapour pressure is so low that it may be neglected ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics A perfect gas is of theoretical interest has constant viscosity None of these is incompressible is of theoretical interest has constant viscosity None of these is incompressible ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ? 1 :25 1 : 5 1:50 1 : 2.5 1 :25 1 : 5 1:50 1 : 2.5 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The normal stress is same in all directions at a point in a fluid When there is no motion of one fluid layer relative to an adjacent layer only when the fluid is incompressible and has zero viscosity only when the fluid is frictionless irrespective of the motion of one fluid layer relative to an adjacent layer When there is no motion of one fluid layer relative to an adjacent layer only when the fluid is incompressible and has zero viscosity only when the fluid is frictionless irrespective of the motion of one fluid layer relative to an adjacent layer ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies linearly with radial distance as the square of the radial distance inversely as the square of the radial distance inversely as the radial distance linearly with radial distance as the square of the radial distance inversely as the square of the radial distance inversely as the radial distance ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is (where R is the radius of pipe) 3/4 R 1/3 R 2/3 R 1/2 R 3/4 R 1/3 R 2/3 R 1/2 R ANSWER DOWNLOAD EXAMIANS APP
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