Physics Test Preparations On Hydraulic Machines Part 2

Test Preparation on Physics Test Preparations On Hydraulic Machines Part 2

1.

In a Francis turbine runner, the number of blades is generally between

12 to 4
24 to 8
38 to 16
416 to 24

2.

A Pelton wheel develops 1750 kW under ahead of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit speed of the wheel is

110 r.p.m.
220 r.p.m.
340 r.p.m.
480 r.p.m.

3.

The specific speed of a hydraulic turbine depends upon

1speed and power developed
2discharge and power developed
3speed and head of water
4speed, power developed and head of water

4.

The depth of the bucket for a Pelton wheel is generally __________ the diameter of jet.

1equal to
21.2 times
31.8 times
4double

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