InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
An ideal liquid is flowing in two pipes, AC is inclined and BD is horizontal. Both the pipes are connected by two vertical tubes of length `h_(1)` and `h_(2)` as shown in the fig. The flow is streamline in both the pipes. if velocity of liquid at A, B and C are `2m//s, 4m//s` and `4m//s` respectively, the velocity at D will beA. `4m//s`B. `sqrt(14)m//s`C. `sqrt(28)m//s`D. none |
|
Answer» Correct Answer - C `P_(A)+(1)/(2)rhoV_(A)^(2)=P_(C)+(1)/(2)rhoV_(C)^(2)+rhog(h_(2)-h_(1))` `P_(A)-P_(C)=(1)/(2)rho(V_(C)^(2)-V_(A)^(2))+rhog(h_(2)-h_(1))` `P_(B)+(1)/(2)rhoV_(B)^(2)=P_(D)+(1)/(2)rhoV_(D)^(2)` `P_(A)+rhogh_(1)+(1)/(2)rhoV_(B)^(2)=P_(C)+rhogh_(2)+(1)/(2)rhoV_(D)^(2)` `P_(A)+(1)/(2)rhoV_(B)^(2)=P_(C)+rho(h_(2)-h_(1))+(1)/(2)rhoV_(D)^(2)` `(1)/(2)(V_(C)^(2)-V_(A)^(2))+rhog(h_(2)-h_(1))+(1)/(2)rhoV_(B)^(2)` `=rhog(h_(2)-h_(1))+(1)/(2)rhoV_(D)^(2)(1)/(2)xx12+(1)/(2)xx12+(1)/(2)xx16=(1)/(2)V_(D)^(2)`, `V_(D)=sqrt(28)(m)/(s)` |
|