The diameter of a propeller agitator used in agitation tank ranges from ____________ percent of the tank diameter and its peripheral speed is normally 300 to 500 metres/minute ?
Correct answer: B. 15 to 30
- A. 5 to 10
- B. 15 to 30
- C. 40 to 50
- D. 55 to 75
Explanation
A propeller is a small-diameter, high-speed agitator, typically about 15 to 30% of the tank diameter. Its high peripheral speed provides circulation and mixing without the large diameter used by paddle or turbine agitators.
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