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Mining Engineering · Q19

Mine Ventilation

Engineering and GATE · Mining Engineering · question 19

Q19

A centrifugal fan rotating at 500 rpm. delivers 70 m3/s of air. If the speed is reduced to 200 rpm. the quantity of air delivered in m3/s will be

A.
175
B.
55
C.
28
Answer
D.
11

Answer: Option C

Solution

Answer: Option C
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