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Elevation pressure is created by elevation differences between which of the following?

Elevation pressure is created by elevation differences between which of the following? Correct Answer The nozzle and the pump

Explanation:

  • Automatic nozzles greatly simplify pump operation.
  • Since automatic nozzles are designed to operate at 100 psi nozzle pressure, this becomes the minimum starting point for any operation.
  • The basic formula for calculating pump discharge pressure is PDP = NP + TPL 
  • i.e. TPL = PDP - NP
  • PDP is the pump discharge pressure, NP is the nozzle pressure and TPL is the total pressure loss (that's hose line friction loss plus apparatus friction loss plus elevation pressure).

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