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 less than the weight of the body weight of the fluid displaced by the body the weight of the body more than the weight of the body less than the weight of the body weight of the fluid displaced by the body the weight of the body more than the weight of the body ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The increase in meta centric height i) increases stability ii) decreases stability iii) increases comfort for passengers iv) decreases comfort for passengers The correct answer is (ii) and (iii) (ii) and (iv) (i) and (iii) (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (iii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than 2.4 m above the hydraulic gradient 5.0 above the hydraulic gradient 6.4 m above the hydraulic gradient 10.0 m above the hydraulic gradient 2.4 m above the hydraulic gradient 5.0 above the hydraulic gradient 6.4 m above the hydraulic gradient 10.0 m above the hydraulic gradient ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The Prartdtl mixing length is independent of shear stress None of these maximum at the pipe wall zero at the pipe wall independent of shear stress None of these maximum at the pipe wall zero at the pipe wall 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 3/4 R 1/2 R 1/3 R 2/3 R 3/4 R 1/2 R ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The peoperty by virtue of which a liquid opposes relative motion between its different layers is called co-efficient of viscosity surface tension viscosity osmosis co-efficient of viscosity surface tension viscosity osmosis ANSWER DOWNLOAD EXAMIANS APP
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