Correct Answer - Option 4 : All the above
Concept:
Pumps:
The hydraulic machines which convert the mechanical energy into hydraulic energy are called pumps.
There are basically 2 types of pumps.
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Centrifugal pumps
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Reciprocating pumps
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The discharge is continuous and smooth
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The discharge is fluctuating and pulsating
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It can handle a large quantity of liquid
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It handles a small quantity of liquid only
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It can be used for lifting highly viscous liquids
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It is used only for lifting pure or less viscous liquids
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It is used for large discharge through smaller heads
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It is meant for a small discharge and high heads
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The cost of a centrifugal pump is less as compared to a reciprocating pump
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The cost of a reciprocating pump is approximately four times the cost of a centrifugal pump
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The Centrifugal pump runs at high speed. They can be coupled to an electric motor
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It runs at a low speed. Speed is limited due to consideration of separation and cavitation
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The operation of a centrifugal pump is smooth and without much noise. The maintenance cost is low
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The operation of a reciprocating pump is complicated and with much noise. The maintenance cost is high.
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It requires a smaller floor area and installation cost is low
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It requires a larger floor area and installation cost is high
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Efficiency is high
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Efficiency is low
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