Chapter 12 Test Water-Based Fire Suppression Systems
Current practice is to locate fire hose valves so that any part of a floor is within: (530)
130 feet (40 m) of the standpipe hose connection
What is the purpose of fire department connections as part of automatic sprinkler systems? (508)
Boost the pressure of the primary water supply
Which classification of standpipe and hose systems is designed to be used by both fire department personnel and trained building occupants? (526)
Class III
Which automatic sprinkler system is continually charged with air under pressure combined with a detection system that controls the operation of the waterflow control valve? (507)
Combined dry pipe and preaction sprinkler system
Which type of sprinkler is recessed and covered with a removable decorative cover plate that releases when exposed to a specific level of heat? (512)
Concealed
Which type of sprinkler is a type of spray sprinkler capable of producing characteristic large water droplets and is listed for its capability of providing fire control of specific high-challenge fire hazards? (513)
Control mode specific application
Which type of sprinkler is usually installed in areas containing acids or caustic materials or processes? (515)
Corrosion-resistant
Which automatic sprinkler system has the advantage of water flowing to the sprinklers from multiple directions? (507)
Gridded systems
Which of the following is a factor that determines the minimum waterflow required for an automatic sprinkler system? (508)
Hazard being protected
When a fire is not controlled in a sprinkler-equipped building, which of the following is MOST likely a cause? (504)
Inadequate or lack of water supply
Which of the following is the main function of a stationary fire pump? (532)
Increase the pressure of the water that flows through it
Which valve is usually a globe valve and may sometimes be found at a remote location within a sprinkler system? (510)
Inspector's test valve
Which of the following is MOST likely to reduce water supply requirements for a standpipe fire suppression system? (529)
Installed automatic sprinklers
Which type of sprinkler is designed to be damage resistant with no removable parts? (515)
Institutional
Which type of automatic sprinkler is designed to direct 40 to 60 percent of its discharge in a downward direction? (514)
Old-style/conventional
Which type of sprinkler is normally provided in a deluge sprinkler system? (515)
Open
Which type of valve is a gate valve that has a yoke on the outside with a threaded stem or screw? (509)
Outside stem and yoke
Which type of sprinkler is installed downward from the branch line so that water flowing from the sprinkler strikes the deflector and is distributed over the protected area? (512)
Pendent
Which stationary fire pump is almost always driven by an electric motor that sits on top of the pump? (533)
Vertical split-case
Which[0] stationary fire pump's main advantage is its compactness? (533)
Vertical split-case
For which fire pump are the impellers actually located within the water supply source? (534)
Vertical turbine
Which fire pump is very useful for lifting water from a source below the pump? (534)
Vertical turbine
For a fire suppression system to be effective, it must be reliable and: (504)
automatic
The inspector should verify that the FDC is not blocked and is free of obstruction, the swivels rotate freely, and the: (546)
caps are in place
Water-mist fire suppression systems are designed to be operated at: (522)
considerably higher pressures than standard sprinkler systems
All sprinklers discharge water simultaneously in: (506)
deluge sprinkler systems
As part of the maintenance requirements of NFPA® 25, standpipe and hose fire suppression systems must be flow and hydrostatic tested: (525)
every five years
Water-mist fire suppression systems utilize air cylinders that must be hydrostatically tested before recharging if it has been more than: (523)
five years since their last tests
Large buildings having two or more zones require a fire department connection (FDC): (531)
for each zone
The maximum spacing between sprinklers in residential systems is: (519)
12 feet (3.5 m)
Which operating valve is located on the riser and used to flow water for testing the waterflow alarm? (510)
Alarm-test valves
Which type of standpipe fire suppression system contains air or nitrogen under pressure and is permanently attached to a water supply? (527)
Automatic-dry
Which type of standpipe fire suppression system contains water in the system at all times and is attached to a water supply capable of supplying the system demand at all times? (527)
Automatic-wet
Which of the following statements about sprinkler systems and a water supply is MOST accurate? (508)
The primary water supply may come from a public or private source
The most common type of fire pump found in stationary fire suppression systems is referred to as a(an: (532)
horizontal split-case
The water supply requirements for residential sprinklers are: (519)
less than those for standard sprinkler system
The pipe schedule table method is limited to: (511)
light and ordinary hazards
Which operating valve is provided in automatic sprinkler systems to limit the flow of water to one direction? (510)
Check valves
Which classification of standpipe and hose fire suppression systems must be capable of supplying effective fire streams during the more advanced stages of fire within a structure? (526)
Class I
Which classification of standpipe and hose systems is primarily for use by firefighters trained in handling large handlines (2½-inch [65 mm] hose)? (526)
Class I
Which classification of standpipe and hose fire suppression systems is primarily designed for use by building occupants trained in its use or by fire department personnel? (526)
Class II
When inspecting a water-spray fixed fire suppression sprinkler system, the inspector should verify that all waterflow control valves are in the: (555)
locked and open position
When the pump driver is an electric motor, the pressure at which the pressure switch is set to start the fire pump must be: (537)
lower than the pressure in the system
Which fire protection system requires a proportioner? (524)
Foam-water system
Which method is the MOST accurate for determining the pipe diameters of automatic sprinkler system pipes? (511)
Hydraulic calculations
What should be done if an automatic sprinkler system is found to have corrosion? (551)
It should be replaced
Which type of sprinkler is designed to provide increased life safety in hotels, motels, and similar residential occupancies? (515)
Quick-response early suppression
Which type of automatic sprinkler is mounted horizontally from a wall face so that the deflector causes the water to be distributed in an arc over the protected area? (512)
Sidewall
The actual hose connections of a standpipe hose valve can be located no more than: (530)
6 feet (1.8 m) from floor level
Which fire pump includes advantages such as the ease of installation as a replacement pump, the compact space required for the pump, and the ease of maintenance of the pump and driver? (534)
Vertical inline
Building management personnel should make a visual inspection of standpipe and hose fire suppression systems at least once: (555)
a month
Water-mist fire suppression systems that utilize air cylinders that have not been discharged should be emptied and tested: (523)
every twelve years
Which method allows for calculations to be made to protect all types of hazards, including extra hazards, with any type of piping and any type of sprinkler discharge device? (511)
Hydraulic calculations
What is a primary concern for residential sprinkler systems installed according to NFPA® 13? (518)
Life safety
Which type of sprinkler is designed for fast response in residential occupancies where life safety in the room of origin is the primary concern? (515)
Residential
Which classification of standpipe and hose fire suppression systems has both 2½-inch (65 mm) hose connections and 1½-inch (38 mm) hose connections? (526)
Class III
Which automatic sprinkler system is used in special circumstances where an additional level of protection against false activation is required, such as in data centers or museums? (507)
Combined dry pipe and preaction sprinkler system
Which type of sprinkler systems operate when an electronic detector or manual control device is activated? (504)
Deluge or preaction sprinkler systems
Which automatic sprinkler system consists of open sprinklers attached to unpressurized dry pipes? (506)
Deluge sprinkler system
Which of the following drivers is MOST likely to be used where a driver independent of the local electrical power supply is needed? (536)
Diesel engine
Which controller monitors and contains alarms for conditions such as low engine oil pressure and high engine coolant temperature? (537)
Diesel engine controller
Which valve is used to drain water from piping when pressure is relieved in the pipe? (510)
Drain valves
Which automatic sprinkler system is continually charged with compressed air and when a sprinkler activates, the air is released, allowing the water-flow control valve to operate and charge the system with water? (505)
Dry-pipe sprinkler system
Which automatic sprinkler system is typically provided in areas where freezing temperatures are likely to occur? (505)
Dry-pipe sprinkler system
Which type of sprinkler is designed to rapidly suppress fires in high-challenge hazards such as warehouses? (514)
Early suppression fast-response
Which of the following is the most common method for driving a fire pump? (535)
Electric motor
Which sprinkler system device activates preaction and deluge systems by smoke, heat, or rate-of-rise detectors in the protected area? (517)
Electronic heat detector
Which of the following allows a stationary fire pump to start automatically whenever the fire suppression system it supplies operates, and to stop automatically? (536)
Fire pump controller
Which type of sprinkler is mounted in a ceiling with the body of the sprinkler, including the threaded shank, above the plane of the ceiling? (512)
Flush
Which fire suppression system is commonly used to protect Class B fire hazards and can be a wet-pipe, dry-pipe, preaction, or deluge system? (523)
Foam-water system
Which type of sprinkler is installed upward from a line so that water is discharged up against the deflector? (512)
Upright
Which of the following is a single-stage fire pump designed to fit into the intake/discharge line with the driver located above the inline impeller? (534)
Vertical inline
Which fire protection system is considered a replacement for fixed fire suppression systems that used halogenated hydrocarbon agents? (521)
Water-mist system
Which fire suppression system uses a very fine spray that controls or extinguishes fire by displacing oxygen and blocking radiant heat production? (521)
Water-mist system
Which fire protection system discharges water over the area or surface of electrical equipment to be protected through an arrangement of pipes and nozzles? (520)
Water-spray fixed system
Which fire suppression system provides protection to specific hazards by applying water droplets of a predetermined pattern, particle size, velocity, and density through specially designed nozzles? (520)
Water-spray fixed system
Which detection and activation device sounds a warning when a sprinkler activates and water begins to flow? (517)
Waterflow alarm
Which of the following are used to turn off or isolate the water supply to the system when it is necessary to perform maintenance, change sprinklers, or interrupt operation? (508-509)
Waterflow control valves
Which automatic sprinkler system is continually charged with water under pressure that discharges immediately when heat from a fire activates one or more sprinklers? (505)
Wet-pipe sprinkler system
Which fire pump includes advantages such as ease of installation, simplified piping arrangement, and reduced pipe strain? (534)
End suction
Which of the following drivers provides steam pressure to drive both horizontal and vertical split-case pumps directly? (536)
Steam turbine
Which type of standpipe fire suppression system contains an empty pipe that is connected to a permanent water supply? (529)
Semiautomatic-dry
Which type of standpipe fire suppression system contains water in the system from a domestic supply but relies on the fire department to provide water through the FDC to meet system demand? (529)
Manual-dry
Which type of standpipe system contains unpressurized air in pipes and has no permanent water supply? (529)
Manual-dry
Which automatic sprinkler system is designed to be operated repeatedly in response to a detection device and shuts on and off based on the demand indicated by the detection device? (507)
Multicycle sprinkler system
Which are vertical sections of pipe that connect the underground supply to the rest of the piping in the system? (510)
System risers
Which type of valve is an underground gate valve that has a hollow metal post attached to the valve housing? (509)
Post indicator valve
Which automatic sprinkler system is continually charged with air that may or may not be under pressure and operates when a sprinkler opens due to a thermally sensitive device and the activation of detection devices? (506)
Preaction sprinkler system
Which pressure-regulating device at a hose outlet is preferred for managing excessive pressure and is considered to be the most reliable method of pressure control? (531)
Pressure-control devices
Which pressure-regulating device at a hose outlet uses a spring mechanism that compensates for variations in pressure? (531)
Pressure-reducing devices
Which of the following is a component of standpipe and hose fire suppression systems? (526)
Pressure-regulating device
Which of the following is a reason for use of pressure regulating devices at hose outlets? (530)
Prevent pressures that make fire hose difficult or dangerous to handle
Which detection and activation device occurs when thermocouples reach a preset temperature, releasing the sprinkler plug? (516)
Sprinkler activation
Fire loss data reveals that in buildings equipped with automatic sprinklers, about _____ percent of all fires were controlled or extinguished by the sprinkler system. (504)
ninety-four
Which of the following statements about waterflow control valves in automatic sprinkler systems is MOST accurate? (509)
They must be indicating-type valves
Unless otherwise approved, spacing for sprinklers in residential systems is a: (519)
maximum of 144 square feet (13 m2) per sprinkler
Most fires in sprinkler-equipped structures are controlled by the operation of: (504)
one or two of the sprinklers
An inspector should first verify that all valves controlling water supplies to the sprinkler system and within the system (sectional valves) are: (546)
open at all times
Thermally sensitive devices such as fusible links keep most sprinklers closed and when heat from a fire affects these devices: (504)
sprinklers closest to the fire activate automatically
While maintaining a minimum required residual pressure in the system, a water supply must be able to deliver the required volume of water to: (508)
the highest or most remote sprinkler in a structure
