A) 79 m/s
B) 188 m/s
C) \[45{}^\circ \]m/s
D) 900 m/s
Correct Answer: C
Solution :
\[u=\frac{\pi DN}{60}=\frac{\pi \times 1.2\times 300}{60}=188.5\,\,\text{m/s}\] \[\rho =\frac{u}{{{v}_{a\,1}}}\] \[{{v}_{a\,1}}=\frac{188.5}{0.42}=4488=45{}^\circ \text{m/s}\]You need to login to perform this action.
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