Graphs to remember for exam

Question 1

For questions relating to finding the pressure head at a valve, what equation do you use?

Answer 1

Change in h = - L / g * change in v / change in t

Question 2

For questions relating to the pressure head at a valve, what is the final head at the valve?

Answer 2

Final head = change in h + static head - the frictional losses.

Question 3

What does a rainfall hyetograph show?

Answer 3

Rainfall depth on the yt axis and time on the x axis