1.

_ For a Parson's reaction turbine, if α₁ and α₂ are fixed blade angles at inlet and exit respectively and β₁ and β₂ are the moving blade angles at entrance and exit respectively, then$?

A. α₁ = α₂ and β₁ = β₂
B. α₁ = β₁ and α₂= β₂
C. α₁ < β₁ and α₂ > β₂
D. α₁ = β₂ and β₁ = α₂
Answer» C. ≈í¬±‚Äö√á√Ö < ≈í‚â§‚Äö√á√Ö and ≈í¬±‚Äö√á√á > ≈í‚â§‚Äö√á√á


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