Explore topic-wise MCQs in Hydraulic Machines.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Hydraulic Machines knowledge and support exam preparation. Choose a topic below to get started.

1.

The relative velocity of water at the inlet of the Kaplan turbine is 7 m/s. 1 = 75o. The whirl velocity of the water at inlet is 10 m/s. Find the blade velocity of the turbine?

A. 26.124 m/s
B. 40 m/s
C. 36.124 m/s
D. 60 m/s
Answer» D. 60 m/s
2.

In the inlet velocity triangle of a Kaplan turbine, 1 = 45o. The velocity of flow at inlet = 10 m/s. Find the whirl velocity of water at the inlet of Kaplan turbine?

A. 5 m/s
B. 10 m/s
C. 12.5 m/s
D. 15 m/s
Answer» C. 12.5 m/s
3.

In the outlet velocity triangle of a Kaplan turbine, 2 = 30o. Vf2 = 5 m/s. What is the relative velocity of the flow at outlet?

A. 10 m/s
B. 5.77 m/s
C. 8.66 m/s
D. 2.88 m/s
Answer» B. 5.77 m/s
4.

The flow ratio of a Kaplan turbine is given as 0.7. The available head is 30 m. The outer diameter of the runner is 3.5 m and the hub diameter is 2 m. Find the volume of water flowing through the turbine per second (m3/s)?

A. 90
B. 111
C. 125
D. 168
Answer» C. 125