The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow)

A. W₁/(W₁ + W₂)

B. W₂/(W₁ + W₂)

C. (W₁ + W₂)/W₁

D. (W₁ + W₂)/W₂

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Pick up the correct statement
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  3. For a two stage compressor, if index of compression for higher stage is greater than index of compression…
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  9. The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ =…
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