Axial flow pump is started with its delivery valve Irrespective of any position Kept fully open Kept fully closed Kept 50% open TRUE ANSWER : ? YOUR ANSWER : ?
When a liquid is flowing through a pipe, the velocity of the liquid is Minimum at the centre and maximum near the walls Maximum at the centre and zero near the walls Maximum at the centre and minimum near the walls Zero at the centre and maximum near the walls TRUE ANSWER : ? YOUR ANSWER : ?
Stream lines and path lines always coincide in case of uniform flow steady flow turbulent flow laminar flow TRUE ANSWER : ? YOUR ANSWER : ?
Reynolds number is significant in supersonics, as with projectile and jet propulsion simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc All of these TRUE ANSWER : ? YOUR ANSWER : ?
The velocity of the liquid flowing through the divergent portion of a Venturimeter Depends upon mass of liquid Increases Decreases Remains constant TRUE ANSWER : ? YOUR ANSWER : ?
The maximum number of jets, generally, employed in an impulse turbine without jet interference are Six Four Eight Two TRUE ANSWER : ? YOUR ANSWER : ?
Bulk modulus of a fluid is the ratio of Increase in pressure to the volumetric strain Increase in volume to the viscosity of fluid Critical velocity to the viscosity of fluid Shear stress to shear strain TRUE ANSWER : ? YOUR ANSWER : ?
The depth of center of pressure of an immersed surface, inclined at an angle 'θ' with the liquid surface lies at a distance equal to __________ the center of gravity. IG sin²θ/Ax̅ above IG sinθ/Ax̅ below IG sinθ/Ax̅ above IG sin²θ/Ax̅ below TRUE ANSWER : ? YOUR ANSWER : ?
Delivery head of a centrifugal pump is Directly proportional to N² Directly proportional to N Inversely proportional to N² Inversely proportional to N TRUE ANSWER : ? YOUR ANSWER : ?
Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance) Cv × Cr Cc × Cr Cc/Cr Cc × Cv TRUE ANSWER : ? YOUR ANSWER : ?