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 ? 10 m/sec 25 m/sec 2 m/sec 50 m/sec 10 m/sec 25 m/sec 2 m/sec 50 m/sec ANSWER DOWNLOAD EXAMIANS APP
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 1:50 1 :25 1 : 2.5 1 : 5 1:50 1 :25 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 friction cohesion viscosity surface tension friction cohesion ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The difference of pressure between the inside and outside of a liquid drop is (d)p = 2T/r (b)p = T/r p = T/2r (a)p = Txr (d)p = 2T/r (b)p = T/r p = T/2r (a)p = Txr ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Fluid is a substance that has the same shear stress.at a point regardless of its motion cannot remain at rest under action of any shear force cannot be subjected to shear forces always expands until it fills any container has the same shear stress.at a point regardless of its motion cannot remain at rest under action of any shear force cannot be subjected to shear forces always expands until it fills any container ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to 91 PA 981 PA 1 PA 9810 PA 91 PA 981 PA 1 PA 9810 PA ANSWER DOWNLOAD EXAMIANS APP
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