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Pump transfers the mechanical energy of a motor or of an engine into _________ of a fluid.

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Pump transfers the mechanical energy of a motor or of an engine into _________ of a fluid.

(a) Pressure energy

(b) Kinetic energy

(c) Either pressure energy or kinetic energy

(d) Pressure energy, kinetic energy or both

The question was asked in final exam.

My question comes from Pumps topic in division Building Blocks of Dairy Processing of Dairy Engineering

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Right choice is (d) Pressure energy, kinetic energy or both

For explanation: A pump is a machine used to convert mechanical energy (shaft movement) into hydraulic energy. Hydraulic energy could be in the form of pressure energy or kinetic energy or a combination of both.  An electrical motor usually supplies the mechanical energy to the pump.

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