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 : 5 1:50 1 :25 1 : 2.5 1 : 5 1:50 1 :25 1 : 2.5 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 40 M/SEC 22.5 M/SEC 33 M/SEC 50 M/SEC 40 M/SEC 22.5 M/SEC 33 M/SEC ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The horizontal component of force on a curved surface is equal to the product of pressure intensity at its centroid and area force on the horizontal projection of the curved surface force on a vertical projection of the curved surface weight of liquid vertically above the curved surface product of pressure intensity at its centroid and area force on the horizontal projection of the curved surface force on a vertical projection of the curved surface weight of liquid vertically above the curved surface ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Free surface of a liquid tends to contract to the smallest possible area due to force of viscosity surface tension cohesion friction viscosity surface tension cohesion friction ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is None of these always below the centroid of the area always above the centroid of the area at the centroid of the submerged area None of these always below the centroid of the area always above the centroid of the area at the centroid of the submerged area ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The resultant of all normal pressures acts vertically upwards at e.g. of body at center of pressure at metacentre vertically upwards at e.g. of body at center of pressure at metacentre ANSWER DOWNLOAD EXAMIANS APP
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