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Which of the following agitator consists of blades directly attached to a boss on agitator shaft?

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+2 votes
in Fermentation Technology by (72.1k points)
Which of the following agitator consists of blades directly attached to a boss on agitator shaft?

(a) vaned discs

(b) disc turbines

(c) rectangular turbines

(d) marine propeller

The question was asked by my college director while I was bunking the class.

Origin of the question is Fermenter Design in division Design of Fermenter of Fermentation Technology

1 Answer

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Best answer
Right answer is (b) disc turbines

To elaborate: The blades in the marine propeller are attached directly to a boss on the agitator shaft. In this type of agitator, air bubbles do not initially hit any surface before dispersion by blades.

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