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Hydraulics & Fluid Machineries MCQ Question with Answer

Hydraulics & Fluid Machineries MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 43
High specific speed of turbine implies it is

Propeller turbine
Francis turbine
Impulse turbine
None of the above

Question No : 44
The working of which of the following hydraulic units is based on Pascal's law?

Air lift pump
Jet pump
Hydraulic coupling
Hydraulic press

Question No : 45
A Pelton wheel is

Tangential flow impulse turbine
Inward flow impulse turbine
Outward flow impulse turbine
Inward flow reaction turbine

Question No : 46
For 450 m head of water, _________ shall be used.

Pelton wheel
Kaplan turbine
Francis turbine
None of these

Question No : 47
Which of the following is not a reaction turbine?

Fourneyron turbine
Journal turbine
Thomson's turbine
Pelton wheel

Question No : 48
The jet ratio is defined as the ratio of the

Diameter of jet to the diameter of Pelton wheel
Velocity of jet to the velocity of Pelton wheel
Diameter of Pelton wheel to the diameter of jet
Velocity of Pelton wheel to the velocity of jet

Question No : 49
When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

Horizontal
Nearly horizontal
Steep
First rise and then fall