Total dynamic head (TDH) in a pumping system is the a. static ...

[Anajune7]

Total dynamic head (TDH) in a pumping system is the
 
  a. static head plus velocity head
  b. velocity head plus friction head plus atmospheric pressure head
  c. static head plus friction head plus velocity head
  d. friction head plus velocity head plus suction lift
  e. none of the above

Question 2

The spring overturn or spring circulation is associated with
 
  a. the formation of the epilimnion and hypolimnion in a lake
  b. high infiltration flows in a sanitary sewer system
  c. change in potable water demand or consumption
  d. mixing of lake water due to thermal destratification
  e. the decrease in dissolved oxygen levels in nutrient-rich lakes

[cascooper22]

Answer to Question 1

c

Answer to Question 2

d

[Anajune7]

Great answer, keep it coming

[carojassy25]

Thanks for the timely response, appreciate it