Hydraulics 2025 Exam Questions Flashcards
P101 has responded to a car fire they have deployed a 45mm pre-connect with a combination nozzle and are attempting to control the fire. What is the pump pressure required?
a) 550kpa
b) 700kpa
c) 750kpa
d) 900kpa
d) 900kpa
What is the flow of a 45mm smooth bore nozzle?
a) 700L/min
b) 1000L/min
c) 550L/min
d) 600L/min
d) 600L/min
A107 has pulled their trash line at a garbage bin on fire. What is the pump pressure to
supply the required flow?
a) 700kpa
b) 550kpa
c) 750kpa
d) 900kpa
a) 700kpa
What is the flow of a 65mm smooth bore nozzle?
a) 550L/min
b) 600L/min
c) 700L/min
d) 1000L/min
d) 1000L/min
P116 has been dispatched to a fire in the industrial area. When they arrive, it’s determined
to be a stack of pallets on fire. The captain decides to pull the 65mm pre-connect with the
smooth bore nozzle to extinguish the fire. What pump pressure is needed to supply the
flow?
a) 700kpa
b) 550kpa
c) 750kpa
d) 900kpa
b) 550kpa
What is the base pump pressure required for a sprinkler system??
a) 1000kpa
b) 725kpa
c) 900kpa
d) 700kpa
a) 1000kpa
Other than a master stream device, what is the only piece of equipment that is on our
apparatus that an Appliance Loss must be calculated?
a) Gated wye
b) Triplex
c) Ground Deluge
d) Foam educator
b) Triplex
S105 responds to the report of a car fire in an underground garage on the first level. Once
on scene they see the roll up door is open and that they can reach the car with their 45mm
pre-connect with the smooth bore nozzle. What is the pump pressure to supply the nozzle
with the correct flow??
a) 720kpa
b) 450kpa
c) 900kpa
d) 700kpa
a) 720kpa
What is the flow rate of a 45mm combination nozzle??
a) 1000L/min
b) 550L/min
c) 600L/min
d) 500L/min
b) 550L/min
P116 responds to a report of a grass fire on Tomken Rd north of Derry Rd. Once on scene
the captain determines they would like to pull the trash line to extinguish the fire. There are
no hydrants close by. With the 45mm combination nozzle, how long of a water supply do
they have at full flow, if their water tank (2000L) is full?
a) 10min
b) 8min
c) 6min
d) 4min
d) 4min
A105 responds to a grass fire. Once on scene it’s determined they will lay a horizontal
standpipe consisting of the 65mm pre-connect, they remove the tip of the nozzle and extend
it by using the attack section of the 45mm pre connect with a smooth bore nozzle. What’s
the pump pressure required to supply the flow??
a) 700kpa
b) 550kp
c) 850kpa
d) 630kpa
d) 630kpa
P103 is required to set up a ground deluge to protect an exposure beside the fire unit. The
hose line used to the deluge is 90m of Hi vol to a deluge flowing 3800L/min. What is the
pump pressure required?
a) 1000kpa
b) 1115kpa
c) 1200kpa
d) 1250kpa
b) 1115kpa
A ground deluge with a 1 ¾ inch (44mm) stacking tip is flowing at capacity at an industrial
fire. After 90 min, what is the total volume that has flowed through the deluge?
a) 250,000L
b) 300,000L
c) 290,000L
d) 270,000L
d) 270,000L
P104 is set up at a fire and have been given the task of set up a hose lay for protecting
exposures. The hose lay is 60m of 65mm to a gated wye, from the gated wye there are two
hand lines of 45mm 60m in length with smooth bore nozzles on each line. What is the pump
pressure required to flow both lines at capacity?
a) 1070kpa
b) 1100kpa
c) 1145kpa
d) 950kpa
a) 1070kpa
P122 has been set up a fire scene and is supplying the following hose lay. 100mm Hi vol to
a ground deluge with 1 ¾ inch (44mm) stacking tip supplied through 90m, 65mm pre-
connect with a smooth bore nozzle, both 45mm pre-connect lines, 1 with the smooth bore,
and the other with the combination nozzle. Determine the total flow from the pump through
the lines??
a) 5000L
b) 6150L
c) 5150L
d) 5200L
c) 5150L
P103 has set up a ground deluge to protect an exposure. The hose lay to the ground deluge
that is set up and flowing through a 2 inch (50mm) tip supplied through 90m of hi vol. What
is the pump pressure required to provide the maximized flow?
a) 1200kpa
b) 1175kpa
c) 1150kpa
d) 1250kpa
b) 1175kpa
A114 is supplying 90m of 65mm to a gated wye, from the gated wye there is one line of
90m of 45mm with smooth bore, and the second line is 120m of 45mm with a smooth bore
nozzle. Determine the pump pressure required?
a) 1630kpa
b) 1805kpa
c) 1330kpa
d) 1430kpa
a) 1630kpa
P121 is supplying 90m of Hi vol to a triplex. From the triplex there are 3 lines of 65mm of
60m in length. All 3 lines have a 65mm pistol grip combination nozzle on them. What is the
total flow per min.
a) 3200L
b) 3000L
c) 1800L
d) 2800L
b) 3000L
P121 is supplying 90m of Hi vol to a triplex. From the triplex there are 3 lines of 65mm of
60m in length. All 3 lines have a 65mm pistol grip combination nozzle on them. What is the
pump pressure that is required??
a) 1315kpa
b) 940kpa
c) 1290kpa
d) 1275kpa
c) 1290kpa
P115 is set up at a fire supplying a ground deluge. The deluge is flowing at a capacity of 4000L. The deluge is 10m in elevation from the pump panel and is being supplied through 120m of hi Vol. What is the pump pressure required?
a) 1250kpa
b) 1325kpa
c) 1425kpa
d) 1225kpa
c) 1425kpa
A105 is first in at a factory fire. They have deployed their two 45mm pre-connect lines and
their 65mm pre-connect as well. Determine the total flow after 70min on scene with all 3
lines flowing at capacity?
a) 154,000L
b) 150,500L
c) 160,000L
d) 155,000L
b) 150,500L
P112 is set up at a truck fire. They have emptied their on-board foam tank. They have a jug of foam on top of the truck and decide they’re going to use the foam educator and play
nozzle. What is the min and max distance from the eductor the nozzle may be deployed??
a) 15-30m
b) 30-45m
c) 30-60m
d) 45-60m
c) 30-60m
The flow rate per min of a foam play nozzle is??
a) 550L
b) 600L
c) 1000L
d) 225L
d) 225L
