Hydraulics & Fluid Mechanics For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be 600 300 675 337.5 600 300 675 337.5 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Free surface of a liquid tends to contract to the smallest possible area due to force of friction surface tension cohesion viscosity friction surface tension cohesion viscosity 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) 2/3 R 1/2 R 1/3 R 3/4 R 2/3 R 1/2 R 1/3 R 3/4 R ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is 50 M/SEC 33 M/SEC 40 M/SEC 22.5 M/SEC 50 M/SEC 33 M/SEC 40 M/SEC 22.5 M/SEC ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The region between the separation streamline and the boundary surface of the solid body is known as lift wake boundary layer drag lift wake boundary layer drag 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 : 2.5 1:50 1 :25 1 : 5 1 : 2.5 1:50 ANSWER DOWNLOAD EXAMIANS APP
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