For an unstable equilibrium of a floating body (where, M = metacentre.) M is above G None of these M is below G M & G coincide TRUE ANSWER : ? YOUR ANSWER : ?
The unit of dynamic viscosity in SI unit is m² /sec m/N. sec kg/m . sec N/m² TRUE ANSWER : ? YOUR ANSWER : ?
Low specific speed of a pump implies that, it is a/an __________ pump. Mixed flow Centrifugal Axial flow None of these TRUE ANSWER : ? YOUR ANSWER : ?
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the All of these Time taken to close the valve Fluid velocity in the pipe Pipe length TRUE ANSWER : ? YOUR ANSWER : ?
Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics. Positive displacement Sump Gear Piston TRUE ANSWER : ? YOUR ANSWER : ?
For laminar flow through a closed conduit Vmax = 0.5Vav Vmax = 1.5Vav Vmax = Vav Vmax = 2Vav TRUE ANSWER : ? YOUR ANSWER : ?
If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is Greater in 0.5 mm dia tube Zero in both the tubes Greater in 1 mm dia tube Same in both the tubes TRUE ANSWER : ? YOUR ANSWER : ?
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant? Non-uniform Unsteady Rotational Turbulent TRUE ANSWER : ? YOUR ANSWER : ?
The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length. Prandtl mixing None of these Transition Equivalent TRUE ANSWER : ? YOUR ANSWER : ?
Pressure drag does not depend upon the All of these Roughness of surface of the body Length of the body in flow direction Pressure of main flow only TRUE ANSWER : ? YOUR ANSWER : ?