Hydraulic Machines Online Test – Multiple Choice Questions and Answers 1. The depth of the bucket for a Pelton wheel is generally __________ the diameter of jet equal to 1.8 times double 1.2 times 2. Head developed by a centrifugal pump is proportional to diameter of impeller proportional to diameter and speed of impeller proportional to speed of impeller none of the above 3. A double overhung Pelton wheel has four runners two runners four jets two jets 4. The Furneyron turbine is __________ reaction turbine an outward flow an inward flow an axial flow a mixed flow 5. An impulse turbine is used for low head of water high discharge high head of water medium head of water 6. The Thomson’s turbine is __________ reaction turbine an axial flow an outward flow an inward flow a mixed flow 7. Which of the following hydraulic unit is used for transmitting increased or decreased torque to the driven shaft? Hydraulic torque converter Hydraulic accumulator Hydraulic ram Hydraulic intensifier 8. Which of the following is not an impulse turbine? Girad turbine Turgo turbine Pelton wheel Kaplan turbine 9. Which of the following statement is wrong ? The angle of taper on draft tube is less than 8° The reaction turbines are used for low head and high discharge An impulse turbine is generally fitted slightly above the tail race A Francis turbine is an impulse turbine 10. The specific speed of a hydraulic turbine depends upon speed, power developed and head of water discharge and power developed speed and power developed speed and head of water Loading … Question 1 of 10
