A fluid is said to be ideal, if it is inviscous and incompressible incompressible inviscous inviscous and compressible TRUE ANSWER : ? YOUR ANSWER : ?
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called osmosis viscosity surface tension co-efficient of viscosity TRUE ANSWER : ? YOUR ANSWER : ?
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than 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 TRUE ANSWER : ? YOUR ANSWER : ?
Normal depth in open channel flow is the depth of flow corresponding to laminar flow unsteady flow Steady flow uniform flow TRUE ANSWER : ? YOUR ANSWER : ?
SURFACE TENSION HAS THE UNITS OF NETON/M NEW TONS/M NEWTONS/M NEWTONS TRUE ANSWER : ? YOUR ANSWER : ?
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 50 m/sec 25 m/sec 2 m/sec TRUE ANSWER : ? YOUR ANSWER : ?
The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is always below the centroid of the area at the centroid of the submerged area always above the centroid of the area None of these TRUE ANSWER : ? YOUR ANSWER : ?
Two dimensional flow occurs when the magnitude and direction of the velocity do not change from point to point in the fluid the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time the direction and magnitude of the velocity at all points are identical TRUE ANSWER : ? YOUR ANSWER : ?
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 (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (iii) TRUE ANSWER : ? YOUR ANSWER : ?
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) 2/3 R 1/2 R 3/4 R 1/3 R TRUE ANSWER : ? YOUR ANSWER : ?