A Square Smooth Conduit, 80 Cm on a Side, Circulates $$35 ^ { \circ } \mathrm { C }$$

question 1

Multiple Choice

A square smooth conduit, 80 cm on a side, circulates 35 $$35 ^ { \circ } \mathrm { C }$$ C air in a large building. The pressure drop over a 50-m length of the horizontal conduit is not to exceed 800 Pa. Assume an average
Pressure in the conduit of 120 kPa. The maximum flow rate in the conduit is nearest:

• A) \(37 \mathrm {~m} ^ { 3 } / \mathrm { s }\)
• B) \(29 \mathrm {~m} ^ { 3 } / \mathrm { s }\)
• C) \(18 \mathrm {~m} ^ { 3 } / \mathrm { s }\)
• D) \(11 \mathrm {~m} ^ { 3 } / \mathrm { s }\)

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