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QUESTIONS AND ANSWERS
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Updated 2026 Questions and Answers
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, Optimum water volume can be achieved while drafting from a 3 meters below the pump
source
3 multiple choice options
What is the advantage of stopping short of the hydrant outlet? Allows the hose to curve and prevent kinks
3 multiple choice options
Which of the following is an advantage of using water as an High availability
extinguishing agent? 3 multiple choice options
The roughness of the inner liner of a hose is commonly called Coefficient of friction
the ____________________.
3 multiple choice options
What is the best method to prevent water hammer? Open and close valves and nozzles slowly
3 multiple choice options
Surge of energy in the opposite direction caused by suddenly Water hammer
stopping water moving through a hose or pipe
Any pressure less than atmospheric pressure Vacuum
That part of total available pressure not used to overcome Residual Pressure
friction loss or gravity
Stored potential energy available to force water through pipe, Static pressure
fittings, fire hose, and adapters.
If a firefighter operating a nozzle, switches the setting from Increasing the nozzle pressure
high to medium without telling the pump operator he will be:
3 multiple choice options
Most constant flow hand nozzles are designed to operate at a 700 kPa
nozzle pressure of __________________.
3 multiple choice options
A solid master stream device should be operated at 560 kPa
_____________________. 3 multiple choice options