Test 8 (T3.2bis)

Type of a centrifugal pump where the impeller pushes the liquid in a direction parallel to the pump shaft.

• Radial Flow Pump

• Mixed Flow Pump

• Parallel Flow Pump

• Axial Flow Pump

What do the density and specific gravity affect in pump selection?

• The liquid's viscosity

• Net positive suction head

• The horsepower required by the pump

• The pressure that exists at the suction end of a pump

What does volumetric efficiency measure in a hydraulic machine?

• The percentage of the actual volume of fluid delivered by the pump compared to its theoretical maximum

• The efficiency of energy conversion from mechanical to hydraulic power

• The rate of fluid flow through the system

• The pressure exerted by the hydraulic fluid in the system

How can the running point for a pump in an installation be determined?

• By randomly selecting a speed setting and observing the pump's performance.

• By increasing the pump's power input until the desired flow rate is achieved.

• By adjusting the pump's impeller diameter.

• By analyzing the system curve and pump curve to find their intersection point.

How can two pumps be combined for optimal performance at high pressure?

• By adjusting the speed of each pump independently

• By connecting them in series.

• By connecting them in parallel.

• By using check valves.