PUMP OPS QUESTIONS AND
CORRECT ANSWERS
dry sprinkler system ANSW✅✅A sprinkler system in which the pipes are normally filled with
compressed air. When a sprinkler head is activated, it releases the air from the system, which opens
a valve so the pipes can fill with water.
a rule of thumb is that a __________ gmp pumper is required for every ______ sprinkler heads in
operation ANSW✅✅1000
50
the required discharge for a sprinkler system can sometimes be found on a plate at or near the
________. If there is not one posted the driver operator should pump at ______ psi
ANSW✅✅FDC
150 psi
wet standpipe system ANSW✅✅This system always has water in the piping. The water in the
system is always under pressure. In some cases a fire pump may be used to increase the water
pressure. The wet standpipe system is the most commonly used standpipe system. It is used in
heated buildings where there is no danger of the water in the piping freezing. Any part of the
standpipe system that is exposed to freezing temperatures should be insulated. It is very important
that the water in the piping does not freeze. Frozen water may prevent the standpipe system from
working.
dry standpipe system ANSW✅✅no water must be supplied by fire department
- connected to the building exterior for connection to fire department
friction loss per floor is? ANSW✅✅5 psi per floor
Friction loss for appliances ANSW✅✅10 psi
friction loss for a standpipe ANSW✅✅25 psi
, rule of thumb for standpipes for 1 to 10 floors 10+ floors for both types of nozzles ANSW✅✅fog-
150 psi for 1-10
200 for 10+ floors
smooth bore 1to 20 floors = 100psi
10+ floors = 150 psi
problems encountered with standpipes ANSW✅✅vandalism
age/thread issues
compatibility of fittings
lack of maintenance
where can you hook up if the FDC is unusable? ANSW✅✅inside the building at one of the
standpipe connections
relay pumping ANSW✅✅Use of two or more pumpers to move water over a long distance by
operating them in series. Water discharged from one pumper flows through hoses to the inlet of the
next pumper, and is then pumped to the next pumper in line.
what PSI to start at while relay pumping? ANSW✅✅100 psi
the pumper closest to the water source is generally referred to as the _________ pumper and the
pumper closest to the fire is the _________ pumper ANSW✅✅the supply pumper
the attack pumper
when shutting down relay pumping how should every pumper shut down? ANSW✅✅shut down
at same time when relay is completed
4 considerations for relay pumping are ANSW✅✅required fire flow
distance of the water source from the scene
size of supply hose
practicality of a tanker operation
CORRECT ANSWERS
dry sprinkler system ANSW✅✅A sprinkler system in which the pipes are normally filled with
compressed air. When a sprinkler head is activated, it releases the air from the system, which opens
a valve so the pipes can fill with water.
a rule of thumb is that a __________ gmp pumper is required for every ______ sprinkler heads in
operation ANSW✅✅1000
50
the required discharge for a sprinkler system can sometimes be found on a plate at or near the
________. If there is not one posted the driver operator should pump at ______ psi
ANSW✅✅FDC
150 psi
wet standpipe system ANSW✅✅This system always has water in the piping. The water in the
system is always under pressure. In some cases a fire pump may be used to increase the water
pressure. The wet standpipe system is the most commonly used standpipe system. It is used in
heated buildings where there is no danger of the water in the piping freezing. Any part of the
standpipe system that is exposed to freezing temperatures should be insulated. It is very important
that the water in the piping does not freeze. Frozen water may prevent the standpipe system from
working.
dry standpipe system ANSW✅✅no water must be supplied by fire department
- connected to the building exterior for connection to fire department
friction loss per floor is? ANSW✅✅5 psi per floor
Friction loss for appliances ANSW✅✅10 psi
friction loss for a standpipe ANSW✅✅25 psi
, rule of thumb for standpipes for 1 to 10 floors 10+ floors for both types of nozzles ANSW✅✅fog-
150 psi for 1-10
200 for 10+ floors
smooth bore 1to 20 floors = 100psi
10+ floors = 150 psi
problems encountered with standpipes ANSW✅✅vandalism
age/thread issues
compatibility of fittings
lack of maintenance
where can you hook up if the FDC is unusable? ANSW✅✅inside the building at one of the
standpipe connections
relay pumping ANSW✅✅Use of two or more pumpers to move water over a long distance by
operating them in series. Water discharged from one pumper flows through hoses to the inlet of the
next pumper, and is then pumped to the next pumper in line.
what PSI to start at while relay pumping? ANSW✅✅100 psi
the pumper closest to the water source is generally referred to as the _________ pumper and the
pumper closest to the fire is the _________ pumper ANSW✅✅the supply pumper
the attack pumper
when shutting down relay pumping how should every pumper shut down? ANSW✅✅shut down
at same time when relay is completed
4 considerations for relay pumping are ANSW✅✅required fire flow
distance of the water source from the scene
size of supply hose
practicality of a tanker operation
