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 : 2.5 1 : 5 1 :25 1:50 1 : 2.5 1 : 5 1 :25 1:50 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 (iv) (i) and (iii) (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (iii) (i) and (iv) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics For a floating body to be in stable equilibrium, its metacentre should be below the center of buoyancy between e.g. and center of pressure above the center of buoyancy above the center of gravity. below the center of buoyancy between e.g. and center of pressure above the center of buoyancy above the center of gravity. ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Two dimensional flow occurs when the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane the magnitude and direction of the velocity do not change from point to point in the fluid the direction and magnitude of the velocity at all points are identical the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane the magnitude and direction of the velocity do not change from point to point in the fluid the direction and magnitude of the velocity at all points are identical the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water ? 50 m/sec 2 m/sec 25 m/sec 10 m/sec 50 m/sec 2 m/sec 25 m/sec 10 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 weight of liquid vertically above the curved surface force on a vertical projection of the curved surface force on the horizontal projection of the curved surface product of pressure intensity at its centroid and area weight of liquid vertically above the curved surface force on a vertical projection of the curved surface force on the horizontal projection of the curved surface ANSWER DOWNLOAD EXAMIANS APP
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