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 ? 1:50 1 :25 1 : 5 1 : 2.5 1:50 1 :25 1 : 5 1 : 2.5 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Fluid is a substance that always expands until it fills any container cannot remain at rest under action of any shear force has the same shear stress.at a point regardless of its motion cannot be subjected to shear forces always expands until it fills any container cannot remain at rest under action of any shear force has the same shear stress.at a point regardless of its motion cannot be subjected to shear forces 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) 1/3 R 2/3 R 1/2 R 3/4 R 1/3 R 2/3 R 1/2 R 3/4 R ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics For a floating body to be in equilibrium All of these a righting couple should be formed center of buoyancy and e.g. must lie on same vertical plane meta center should be above e.g. All of these a righting couple should be formed center of buoyancy and e.g. must lie on same vertical plane meta center should be above e.g. ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics When a body floating in a liquid, is displaced slightly, it oscillates about metacentre e.g. of body center of pressure center of buoyancy metacentre e.g. of body center of pressure center of buoyancy ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be negative value maximum could be any value minimum negative value maximum could be any value minimum ANSWER DOWNLOAD EXAMIANS APP
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