1171. Which ofthe following assumptions enables the Euler’s equation of motion to be integrated?

A. The fluid is incompressible *
B. The fluid is non viscous
C. The continuity equation is satisfied
D. The flow is rotational and incompressible

1172. Centrifugal pumps are normally classified on the basis of :

A. Its RPM
B. Type of casing *
C. Impeller blade angle
D. Number of blades in impeller

1173. The rate of change of moment of momentum represents the ________ by the fluid :

A. Torgue applied *
B. Force exerted
C. Work done
D. Power developed

1174. In parallel pipe problems , the :

A. Head loss is the same through each pipe *
B. Discharge is the same through all the pipes
C. Total head loss is equal to the sum of the head losses through each pipe
D. None of these

1175. The speed of a sound wave in a gas is analogue to the speed of :

A. An elementary wave in an open channel *
B. Flow in an open channel
C. A disturbance travelling upstream in moving fluid
D. None of these

1176. Foot valves provided in pumps are _______valves:

A. Relief
B. Three/four way
C. Pressure reducing
D. Directional control *

1177. A hydraulic ram acts as a/an ________pump:

A. Centrifugal
B. Reciprocating
C. Impulse *
D. Parallel cylinder

1178. A centrifugal pump is called a turbine pump, if it is having :

A. Turbine type impeller
B. Vaned diffusion casing *
C. Rotating vaned volute
D. None of these

1179. Euler’s equation of motion states that at every point, the :

A. Fluid momentum is constant
B. Force per unit mass equals acceleration *
C. Rate of mass outflow is equal to the rate of mass inflow
D. None of these

1180. A mixed flow centrifugal pump:

A. Employs such an impellar through whch the flow is a combination of radial and axial flow *
B. Mixes the two fluids before pumping them
C. Pumps the two fluids separately and then mixes them
D. Employs impellers in both radial and axial directions