Hydraulics & Fluid Mechanics According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to the weight of the body less than the weight of the body more than the weight of the body weight of the fluid displaced by the body the weight of the body less than the weight of the body more than the weight of the body weight of the fluid displaced by the body ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is (ii) and (iii) (i), (ii) and (iii) (i) and (iii) (i) and (ii) (ii) and (iii) (i), (ii) and (iii) (i) and (iii) (i) and (ii) 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 frictionless irrespective of the motion of one fluid layer relative to an adjacent layer only when the fluid is incompressible and has zero viscosity When there is no motion of one fluid layer relative to an adjacent layer only when the fluid is frictionless irrespective of the motion of one fluid layer relative to an adjacent layer only when the fluid is incompressible and has zero viscosity 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 Which of the following instrument can be used for measuring speed of an aeroplane Venturimeter Orifice plate pitot tube rotameter Venturimeter Orifice plate pitot tube rotameter ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The surface tension of mercury at normal temperature compared to that of water is more same less more or less depending on size of glass tube more same less more or less depending on size of glass tube ANSWER DOWNLOAD EXAMIANS APP
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