question_answer

If (to geometrically similar impellers of a centrifugal compressor are operated at the. same speed, then their head discharge and power will vary with their diameter ratio:                             

A) \[d,{{d}^{2}}\,\,and\,\,{{d}^{3}}\]Respectively                 

B) \[d,\,{{d}^{3}}\,\,and\,\,{{d}^{5}}\] Respectively                 

C) \[d,\,{{d}^{3}}\,\,and\,\,{{d}^{5}}\] Respectively               

D) \[{{d}^{2}},d\,\,and\,\,{{d}^{3}}\] Respectively