In reaction turbine draft tube is used

To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section

To transport water downstream without eddies

Statement (I) An impulse turbine can run without change in its hydraulic efficiency even if its casing is damaged.Statement(II) An impulse turbine will not have draft tube.

Both Statement (I) and Statement (II) are individually true but statement (II) is not the correct explanation of Statement (I)

Both statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

Statement (I) is true but Statement (II) is false

Statement (I) is false but Statement (II) is true

o convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section

o transport water downstream without eddies

It converts the pressure energy at the outlet of turbine into useful kinetic energy

It allows the negative head at the outlet of runner

It is of gradually increasing area of cross section

It increases the efficiency of turbine

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