Hydraulics & Fluid Mechanics For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is inversely proportional to Reynolds number and indpendent of pipe wall roughness inversely proportional to Reynolds number and directly proportional to pipe wall roughness directly proportional to Reynolds number and independent of pipe wall roughness directly proportional to pipe wall roughness and independent of Reynolds number inversely proportional to Reynolds number and indpendent of pipe wall roughness inversely proportional to Reynolds number and directly proportional to pipe wall roughness directly proportional to Reynolds number and independent of pipe wall roughness directly proportional to pipe wall roughness and independent of Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics A fluid is said to be ideal, if it is incompressible inviscous and incompressible inviscous inviscous and compressible incompressible inviscous and incompressible inviscous inviscous and compressible ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Least possible value of correction factor for i) kinetic energy is zero ii) kinetic energy is 1 iii) momentum is zero iv) momentum is 1 The correct statements are (ii) and (iii) (i) and (iii) (ii) and (iv) (i) and (iv) (ii) and (iii) (i) and (iii) (ii) and (iv) (i) and (iv) 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 ? 2 m/sec 50 m/sec 10 m/sec 25 m/sec 2 m/sec 50 m/sec 10 m/sec 25 m/sec ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics In which of the following the friction drag is generally larger than pressure drag? a circular disc or plate held normal to flow a cylinder an airfoil a sphere a circular disc or plate held normal to flow a cylinder an airfoil a sphere ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Separation of flow occurs when All of these the cross-section of a channel is reduced the boundary layer comes to rest the pressure intensity reaches a minimum All of these the cross-section of a channel is reduced the boundary layer comes to rest the pressure intensity reaches a minimum ANSWER DOWNLOAD EXAMIANS APP
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