A) 122.5 mm
B) 58 mm
C) 70 mm
D) 62.5 mm
Correct Answer: C
Solution :
\[{{\dot{m}}_{s}}=10\,\text{kg/s,}\] \[{{d}_{1}}=50\,mm\text{,}\] \[\frac{{{\rho }_{1}}}{{{\rho }_{2}}}=2.45,\] \[\frac{{{c}_{1}}}{{{c}_{2}}}=0.8\] \[{{A}_{1}}{{c}_{1}}{{\rho }_{1}}={{A}_{2}}{{c}_{2}}{{\rho }_{2}}\] \[{{A}_{2}}=\frac{{{A}_{1}}}{{{A}_{2}}}=\frac{{{c}_{1}}{{\rho }_{1}}}{{{c}_{2}}{{\rho }_{2}}}=0.8\times 2.45=1.96\] \[{{d}_{2}}={{d}_{1}}{{d}_{2}}={{d}_{1}}\sqrt{1.96}=50\] \[50\sqrt{1.96}=70\,\,mm\]You need to login to perform this action.
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