Low specific speed of a pump implies that, it is a/an __________ pump. Axial flow Centrifugal Mixed flow None of these TRUE ANSWER : ? YOUR ANSWER : ?
Design of the casing of centrifugal pump should be such as to minimise the None of these Back flow through impeller Loss of kinetic head Loss of static head TRUE ANSWER : ? YOUR ANSWER : ?
Mass velocity in case of steady flow and through a constant cross-section conduit is independent of the Pressure Both A & B Temperature Neither A nor B TRUE ANSWER : ? YOUR ANSWER : ?
The normal stress is the same in all directions at a point in a fluid, when the fluid is Incompressible Having no motion of one fluid layer relative to the other Both A and B Non-viscous TRUE ANSWER : ? YOUR ANSWER : ?
In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity) 1.8 Vavg Vavg 1.5 Vavg 1.2 Vavg TRUE ANSWER : ? YOUR ANSWER : ?
Cd is always __________ Cc. Equal to Either more or less than Greater than Less than TRUE ANSWER : ? YOUR ANSWER : ?
Reciprocating pumps compared to centrifugal pumps Are not subject to air binding Deliver liquid at uniform pressure Can be operated with delivery valve closed Can handle slurries more efficiently TRUE ANSWER : ? YOUR ANSWER : ?
Unsteady non-uniform flow is represented by flow through a/an Expanding tube at constant rate Long pipe at constant rate Long pipe at decreasing rate Expanding tube at increasing rate TRUE ANSWER : ? YOUR ANSWER : ?
Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will Remain unchanged Decrease Data insufficient to predict relative pressure drop Increase TRUE ANSWER : ? YOUR ANSWER : ?
Euler's equation of motion is a statement expressing Newton's first law of motion Conservation of mass Newton's second law of motion Conservation of energy TRUE ANSWER : ? YOUR ANSWER : ?