A duct of rectangular cross-section 600 mm × 400 mm carries 90 m3/min – McqOptions

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1.	A duct of rectangular cross-section 600 mm × 400 mm carries 90 m3/min of air having density of 1.2 kg/m3. When the quantity of air in both cases is same, the equivalent diameter of a circular duct will be nearly
A.	0.86 m
B.	0.76 m
C.	0.64 m
D.	0.54 m
Answer» E.

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