If we reduce the motor rpm in an impeller, cavitation               

Related MCQs

• A student performs an experiment with a Francis turbine. He accidently set the RPM of Francis turbine to 1400 rpm instead of 700 rpm. He reported the power to be 1 MW. His teacher asks him to perform the same experiment using the correct RPM. The student performs the same experiment again, but this time the erroneously doubled the flow velocity. What does the student report the power to be?
• Decreasing the diameter of the eye of the impeller, cavitation                  
• With the increase in cavitation, the drag coefficient of the impeller             
• Impeller in a motor is used to                  
• The ratio of quantity off liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as
• Discharge of a centrifugal pump is (where N= speed of the pump impeller)
• For a centrifugal pump impeller, the maximum value of the vane exit angle is
• The fluid gains while passing through the impeller.
• The velocity imparted by the impeller is converted into                  
• The impeller is mounted on a