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Fire Apparatus Operator. Pumper Ch. 6 Questions and Answers
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Fire Apparatus Operator. Pumper Ch. 6
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Fire Apparatus Operator. Pumper Ch. 6A solid stream nozzle produces a fire stream that has a: - answera. tight stream and
little spray or shower effect
A solid stream nozzle is designed so that the volume of water flowing through the
nozzle: - answerb. is gradually reduced until just before the orifice
Which of the following BEST determines the flow and reach of a solid stream? -
answerd. nozzle pressure and size of the discharge orifice
Solid stream nozzles on handlines should generally be operated at a maximum of: -
answerc. 50 psi nozzle pressure
Master stream appliances should be operated at a maximum of: - answerb. 80 psi
Which of the following is a reason that driver/operators may need to determine the
amount of water discharged from a solid stream nozzle? - answerd. test the water
supply when a nozzle is attached to a hydrant
Which of the following is a constant in the metric formula for discharge rate? - answerb.
0.067
Which manner of producing fog streams occurs by deflecting water around an inside
circular stem in the nozzle? - answerd. periphery-deflected streams
Which pattern is MOST often provided by impinging stream nozzles? - answerc. wide-
angle fog pattern
Which of the following directly affects the reach of the fog stream? - answerd. volume of
water flowing
Which of the following is designed to flow a specific volume of water on all stream
patterns at a specific nozzle discharge pressure? - answerb. constant flow fog nozzle
Which of the following is designed to allow the firefighter operating the handline to
select a flow rate to suit the fire and operating conditions? - answerd. selectable
gallonage nozzle
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