A large tank holds an unknown fluid with a depth of $40$ ft $.$ The figure below shows that the

unknown fluid is being siphoned from the tank with a hose that has a $6-$inch diameter. The

unknown fluid flows out of the hose $8$ ft below the fluid surface. A manometer is attached to

the right side of the tank and uses SAE $30$ oil as its gauge fluid.

A$)$ What is the unknown fluid in the tank if the manometer readings are $h1=10in,h2=6$

in$,h3=18$ in$,$ and $h4=6in?$

B$)$ What is the velocity exiting the hose if $d=12in?$

C$)$ What is the flow rate exiting the hose if $d=12in?$

D$)$ Where does the minimum pressure occur in the hose and what does the minimum

pressure equal if $d=12$ in$?$

E$)$ What is the maximum elevation, $d,$ the hose can be elevated above the fluid surface

before the hose collapses if the tube collapses at $-24$ psi $?$

Use the general form of the Bernoulli equation and state why$/$how terms are simplified.

Show all of your work. Include correct units in the final answer $($do not convert units from

English to SI units then back to English!$).$ Clearly mark any points used in your solution on

the figure. Note: you do not need to re$-$sketch the figure in your solution.