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 : 2.5 1 : 5 1:50 1 :25 1 : 2.5 1 : 5 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 (i) and (ii) (i) and (iii) (ii) and (iii) (i), (ii) and (iii) (i) and (ii) (i) and (iii) (ii) and (iii) (i), (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The peoperty by virtue of which a liquid opposes relative motion between its different layers is called viscosity surface tension co-efficient of viscosity osmosis viscosity surface tension co-efficient of viscosity osmosis ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Two pipe systems are said to be equivalent when length of pipe and discharge are same in two systems head loss and discharge are same in two systems length and diameter are same in two systems friction factor and length are same in two systems length of pipe and discharge are same in two systems head loss and discharge are same in two systems length and diameter are same in two systems friction factor and length are same in two systems 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 at the centroid of the submerged area always below the centroid of the area always above the centroid of the area None of these at the centroid of the submerged area always below the centroid of the area always above the centroid of the area None of these 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
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