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Mechanical Engineering - Hydraulic Machines

Exercise : Hydraulic Machines - Section 2
11.
In an inward flow reaction turbine
the water flows parallel to the axis of the wheel
the water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
the water enters the wheel at the outer periphery and then flows towards the centre of the wheel
the flow of water is partly radial and partly axial
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The working of which of the following hydraulic units is based on Pascal's law?
Air lift pump
Jet pump
Hydraulic coupling
Hydraulic press
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
The hydraulic efficiency of a reaction turbine, is the ratio of
power produced by the turbine to the energy actually supplied by the turbine
actual work available at the turbine to energy imparted to the wheel
workdone on the wheel to the energy (or head of water) actually supplied to the turbine
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In order to avoid cavitation in centrifugal pumps
the suction pressure should be high
the delivery pressure should be high
the suction pressure should be low
the delivery pressure should be low
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
A hydraulic intensifier is a device used to increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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