Mechanical Engineering - Hydraulic Machines

Exercise : Hydraulic Machines - Section 4
6.
A turbine develops 10000 kW under a head of 25 metres at 135 r.p.m. Its specific speed is
175.4 r.p.m.
215.5 r.p.m.
241.5 r.p.m.
275.4 r.p.m
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
The power of a centrifugal pump working under constant head and discharge increases with the speed.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
Which of the following pump is successfully used for lifting water to the turbines?
Centrifugal pump
Reciprocating pump
Jet pump
Air lift pump
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
Which of the following is not a reaction turbine?
Furneyron turbine
Jonval turbine
Thomson's turbine
Pelton wheel
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is __________ of the jet velocity
one-half
one-third
two-third
three-fourth
Answer: Option
Explanation:
No answer description is available. Let's discuss.