S12 SPRINKER TEST EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST 2025
ALREADY GRADED A+
Alarm Retarding Devices - ANSWERS-An alarm check valve that is exposed to
changing water supply pressure needs an alarm retarding device. This is
required to prevent false alarms when the check valve clapper is lifted from its
seat by a temporary pressure surge. Vane type water flow switches sensitivity
can also be adjusted to changing water pressures.
The Centrifugal Pump - ANSWERS-The centrifugal fire pump is the standard
pump currently used in fire protection systems. This is the preferred pump
because it is reliable, compact, requires low maintenance, and it can be
powered by a variety of drivers including: electric motors, internal combustion
engines, and steam turbines
The Vertical Turbine Pump - ANSWERS-A vertical turbine pump is really a
modified centrifugal pump that has the capability to draw water from streams,
ponds, wells etc. Unlike the standard centrifugal pump, the vertical turbine
pump does not need the suction supply to be under pressure for it to operate.
Instead it draws the water into the pump by suction. The water is drawn into
, the pump. When it reaches the rotating impellers the water pressure is
increased and then forcefully discharged into the fire protection system.
Pump Activation - ANSWERS-A fire pump can be started automatically or
manually. The pump can be started automatically by an electric controller or an
engine controller. These controllers activate the pump when there is a drop of
water pressure or water flow in the fire protection system. The controllers are
adjusted so that a minor drop in water pressure or minor increase in water flow
due to a small leak will not activate the pumps. The controllers for the fire
pumps are expensive; require extensive maintenance and periodic testing.
Where electric motor drive is used, a standby power generator is sometimes
required. If an engine controller is used the appropriate fuel storage tanks
should be filled and checked regularly.
Pressure Maintenance Pumps (Jockey Pumps) - ANSWERS-Pressure
maintenance pumps,
Some times referred to as jockey, or makeup pumps, are often found on
sprinkler systems. These pumps are designed to automatically operate when
there is a slight drop in pressure due to the leakage in the system or a pressure
surge. The jockey pump restores the pressure in the fire protection system to
the desired level. When the drop of pressure in the system greater than the
capacity of the jockey pump the fire pump is activated.
blue disk - ANSWERS-partially out of service- on all fire department connections
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST 2025
ALREADY GRADED A+
Alarm Retarding Devices - ANSWERS-An alarm check valve that is exposed to
changing water supply pressure needs an alarm retarding device. This is
required to prevent false alarms when the check valve clapper is lifted from its
seat by a temporary pressure surge. Vane type water flow switches sensitivity
can also be adjusted to changing water pressures.
The Centrifugal Pump - ANSWERS-The centrifugal fire pump is the standard
pump currently used in fire protection systems. This is the preferred pump
because it is reliable, compact, requires low maintenance, and it can be
powered by a variety of drivers including: electric motors, internal combustion
engines, and steam turbines
The Vertical Turbine Pump - ANSWERS-A vertical turbine pump is really a
modified centrifugal pump that has the capability to draw water from streams,
ponds, wells etc. Unlike the standard centrifugal pump, the vertical turbine
pump does not need the suction supply to be under pressure for it to operate.
Instead it draws the water into the pump by suction. The water is drawn into
, the pump. When it reaches the rotating impellers the water pressure is
increased and then forcefully discharged into the fire protection system.
Pump Activation - ANSWERS-A fire pump can be started automatically or
manually. The pump can be started automatically by an electric controller or an
engine controller. These controllers activate the pump when there is a drop of
water pressure or water flow in the fire protection system. The controllers are
adjusted so that a minor drop in water pressure or minor increase in water flow
due to a small leak will not activate the pumps. The controllers for the fire
pumps are expensive; require extensive maintenance and periodic testing.
Where electric motor drive is used, a standby power generator is sometimes
required. If an engine controller is used the appropriate fuel storage tanks
should be filled and checked regularly.
Pressure Maintenance Pumps (Jockey Pumps) - ANSWERS-Pressure
maintenance pumps,
Some times referred to as jockey, or makeup pumps, are often found on
sprinkler systems. These pumps are designed to automatically operate when
there is a slight drop in pressure due to the leakage in the system or a pressure
surge. The jockey pump restores the pressure in the fire protection system to
the desired level. When the drop of pressure in the system greater than the
capacity of the jockey pump the fire pump is activated.
blue disk - ANSWERS-partially out of service- on all fire department connections
