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Sprinkler Test Exam With Correct
Questions And Answers 2024
Class 1 commodity is more combustible then class 3 - Correct Answer-False All holes for lag screws shall be pre-drilled __________ inch less in diameter than the max. root diameter of the lag screw thread. - Correct Answer-1/8in Coach screws shall not be used for support of pipes larger than ________ inch in diameter. - Correct Answer- Distance between supports on a riser shall not exceed _________ feet. - Correct Answer-25ft Fire department connections shall be installed so that they are located not less than ______ nor more than ______ above the level of the adjoining ground, sidewalk, or grade surface. - Correct Answer-18in , 48in Flexible couplings shall be installed on risers within_____ inches above and _____ inches below the floor in multi-story buildings. - Correct Answer-12in and 24in For ESFR sprinklers, the clearance between the deflector and the top of storage shall be ____ inches or greater - Correct Answer-36in For extra hazard occupancies, the maximum distance between sprinklers shall not exceed ______ feet - Correct Answer-12ft Hangers shall be designed to support _______ times the weight of water-filled pipe plus ________ at each point of piping support. - Correct Answer-5 and 250 Hose connections and hose stations shall be unobstructed and shall be located not less than ______ nor more than ______ above the floor. Answers - Correct Answer-36in, 60in How high can storage be before it is considered high-piled storage? - Correct Answer- 12ft How shall the sprinkler head protecting the dry pipe valve enclosure be fed? - Correct Answer-From the dry side of the system In residential applications, fire department connections are required to be a minimum of _______ in size. - Correct Answer-1 1/2"
Is the use of reconditioned valves and devices as replacement equipment in existing systems allowed? - Correct Answer-Yes Joints for the connection of copper pipe an fittings on dry and preaction systems shall be brazed. - Correct Answer-True Lateral sway bracing shall be spaced at a minimum of __________ feet on center on all feed and cross mains regardless of size and on all piping 2 1/2" and larger - Correct Answer-40ft Lateral sway bracing shall not apply to pipes individually supported by rods less than ______ inches long measured between the top of the pipe and the point of attachment to the building structure. - Correct Answer-6in Longitudinal sway bracing spaced at a maximum of ________ feet on center shall be provided for feed and cross mains. - Correct Answer-80ft No clearance is required if flexible couplings are located within _____ each side of a wall, floor, platform, or foundation. - Correct Answer-12in Ordinary hazard occupancy protection areas shall not exceed ________ square feet. - Correct Answer- Pressure tanks should be kept ________ full of water. - Correct Answer-2/ Pressure tanks should maintain an air pressure of at least ______ psi. - Correct Answer-75PSI Risers shall be supported by pipe clamps or by hangers located on the horizontal connections within ________ inches of the centerline of the riser. - Correct Answer-24in Screwed unions shall not be used on pipe larger than _________ inch - Correct Answer-2in Sprinklers installed where maximum ambient ceiling temperatures do not exceed 100 degrees farenheit shall be __________ temperature rated sprinklers. - Correct Answer- Ordinary Sprinklers under glass or plastic skylights exposed to direct rays of the sun shall be of ____________ temperature classification. - Correct Answer-intermediate Starter lengths less than ____ feet shall not require a hanger - Correct Answer-6ft The distance between the last lateral sway brace and the end of the pipe shall not exceed _______ feet - Correct Answer-
Where is the pressure relief valve located on an air supply line? - Correct Answer- Between the compressor and the control valve Where sprinklers are spaced less than 6 feet apart, hangers spaced up to a maximum of _______ feet shall be permitted. - Correct Answer-12ft era Where threaded pipe is used as part of a sway brace assembly, it shall not be less than Schedule ______. - Correct Answer-Schedule 30 Where upward or lateral movement of the system piping would result in damage to the sprinkler through impact against the building structure, equipment, or finish materials, branch lines shall bge restrained at intervals not exceeding _______ feet. - Correct Answer- Which of the following best describes a bullhead tee? - Correct Answer-1 1/2" x 1 1/4" x 2" With maximum pressures exceeding 100 psi, the unsupported length between the end sprinkler in a pendent position and the last hanger on the branch line shallo not be greater than _____ for steel pipe. Copper pipe? - Correct Answer-12in, 6in Within a hose cabinet, the hose connection shall be located so that there is at least ______ between any part of the cabinet and the handle of the valve when the valve is in any position ranging from fully open to fully closed. - Correct Answer-1in What type of tank is not required to conform to NFPA 22? - Correct Answer-Plastic According to NFPA 14, what is the minimum size standpipe for a scheduled system less than 50 feet in height? - Correct Answer-2in Friction loss is always expressed in _________. - Correct Answer-PSI per Foot When hanging plastic pipe, vertical restraints are required within _______ inches of the sprinkler. - Correct Answer-6in The NFPA document that should be consulted in regard to water tanks for fire protection is - Correct Answer-NFPA 22 A high-rise building is a building that is greater than _____ feet in height. - Correct Answer-75ft What is the maximum unsupported armover length where maximum pressures exceed 100 psi? - Correct Answer-12in
The NFPA document that should be consulted for information on the installation of centrifugal fire pumps is ___________ - Correct Answer-NFPA 20 The NFPA standard to be consulted for underground pipe connected to standpipe systems is _______. - Correct Answer-NFPA 24 1-1/2" CPVC pipe requires a hanger no more than every ___ feet. - Correct Answer-7ft A blue sprinkler deflector has a temperature rating between ____________. - Correct Answer-250-300 degrees A non-decorative sprinkler with white paint applied at the factory has a/an__________. - Correct Answer-Intermediate A sprinkler installation requires a booster pump. The fire department connection should be: - Correct Answer-Sized to supply the capacity According to NFPA 14, what is the minimum size standpipe for a scheduled system less than 50 feet in height? - Correct Answer-2in All residential sprinklers within a compartment must have a temperature rating within _____ of one another. - Correct Answer-10 degrees An eight(8) mm bulb would be found on - Correct Answer-Standard sprinkler In addition to the standard hydrostatic test, dry pipe systems shall have an air pressure leakage test of ____ psi for ___ hours. - Correct Answer-40psi , 24hrs In unobstructed construction, the deflector distance below the ceiling is __________. - Correct Answer-1 to 12in Massachusetts State Building Code 780 CMR prescribes _____ - Correct Answer- Where sprinkler systems are required Obstructed construction requires a deflector distance of ________ - Correct Answer- to 6 inches below the beams to a maximum of 22 inches below the deck On a single dry pipe system, the FDC shall be installed - Correct Answer-between the system control valve and the dry pipe valve The NFPA standard to be consulted for underground pipe connected to standpipe systems is _____ - Correct Answer-NFPA 24 The ball drip is located: - Correct Answer-Between the FDC and the Check valve
A fixed temperature sensor is in an area where the ceiling temperature can reach 110 degree Farenheit, its temperature category should be __________. - Correct Answer- intermediate temperature A main drain test on wet sprinkler systems must be conducted ______ per NFPA 25 requirements - Correct Answer-Annually A pipe hanger that has a load rating of 500 pounds must be able to support _________ pounds. - Correct Answer-2, A system that is a basically a dry pipe system that can also be activated by a detection system is a ___________ preaction system. - Correct Answer-Non-interlock A typical mix of concrete for thrust blocks is ____________. - Correct Answer-one part cement, 2 1/2 parts sand, and 5 parts washed gravel All preaction systems that have over __________ sprinklers are required to be supervised. - Correct Answer- Alloy steel chain slings that have ______ must be removed from service immediately. - Correct Answer-Twisted links An occupancy where combustibility is low, quantity of combustibles is moderate, stockpiles of combustibles do not exceed 8 feet, and fires with moderate rates of heat release are expected is classified as a(n) _______ occupancy. - Correct Answer- Ordinary hazard, Group 1 Automatic feed capability makes what kind of tank the most desirable water storage facility? - Correct Answer-An elevated tank CPVC pipe is manufactured in Standard Dimensional Ratio (SDR) ________. - Correct Answer-13. Dry pipe or preaction sprinkler system piping that protects or passes through freezers or cold storage rooms must be visually inspected _________. - Correct Answer-Annually Meters used to measure water consumption are ________ fire protection systems - Correct Answer-Disadvantage NFPA 13 states that fire department connections must be provided for all sprinklered buildings, including those with dry-pipe systems, except single-story buildings not exceeding ________ square feet. - Correct Answer-2,000sqft On standpipe and hose systems, NFPA 25 requires inspection of pressure regulating devices _______. - Correct Answer-Quarterly
Post indicator valves must be set so the top of the post is ________ inches above final grade. - Correct Answer- Protectowire is __________. - Correct Answer-Fixed temperature sensor Restraints ___________ movement of pipe. - Correct Answer-Vertical Standpipe sizing is allowed by the schedule method provided the water supply will produce a minimum of _________. - Correct Answer-65 psi at the topmost outlet under minimum flow conditions Testing and inspection of backflow preventers should be performed ______ by a certified technician. - Correct Answer-Monthly The C-factor is a term used to classify the _______. - Correct Answer-Roughness of the inside of the pipe The C-factor is used in hydraulic calculations for dry systems is ________ the C-factor used in wet systems. - Correct Answer-Lower then The Flammable and Combustible Liquids code is ____ - Correct Answer-NFPA 30 The NFPA document that should be consulted for information on the installation of centrifugal fire pumps is ____ - Correct Answer-NFPA 20 The NFPA standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems is ___ - Correct Answer-NFPA 25 The NFPA standard for the Installation of Private Fire Service Mains and their Appurtenances is _____ - Correct Answer-NFPA 24 The amount of energy it takes to raise the temperature of one pound of water one degree Farenheit is the unit of measure called the _____ - Correct Answer-BTU The first step in conducting a test of a dry-pipe valve is to ___ - Correct Answer-Notify the building applicants The individual(s) responsible for completing a test certificate for underground piping is (are) ____ - Correct Answer-The contractor The length of an unsupported armover for copper tube shall not exceed __________ inches. - Correct Answer- The maximum allowable unsupported length between an end sprinkler in a pendent position or drop nipple and the last hanger on a copper branch line is ___ - Correct Answer-
What document provides nationally recognized conditions related to cross-connection control? - Correct Answer-AWWA Manual M- What type of fitting/coupling is considered to require no take-out allowance - Correct Answer-Gasketed grooved couplings When assembling mechanical joint pipe, the gasket must first be ______ - Correct Answer-Dipped in soapy water When checking the dry fit of a CPVC pipe end and fitting socket, a pipe that bottoms with little interference means ___ - Correct Answer-More solvent cement is required When flushing underground piping, a velocity of at least _______ feet per second is necessary for scouring the pipe. - Correct Answer-10ft/second When installing sprinkler heads, cure the sprinkler head fittings for a minimum of _____ minutes - Correct Answer- When performing hydraulic calculations, a fire sprinkler system design is acceptable if the _______ - Correct Answer-required water supply for the system is less than the available water supply When running an electric pump test, how many emergency starts should be made - Correct Answer- When testing an electrically driven pump, how many manual starts must be made? - Correct Answer- Which NFPA standard details the installation of standpipes when they are required? - Correct Answer-NFPA 14 Which classes of systems normally would need meximum protection to protect the public potable water supply? - Correct Answer-Class 4 and 5 Which code is a mixture of building-code-style requirements and fire-code style requirements? - Correct Answer-NFPA 101 Which of the following factors is most likely to influence trench stability? - Correct Answer-trench depth, trench width, and soil type Which of the following would be a BLEVE? - Correct Answer-the temperature of the contents of an LP gas storage tank is elevated above the normal temperature range, causing the tank to rupture and become airborne With antifreeze systems, the freezing point of the antifreeze must be tested ________ - Correct Answer-Annuallu
Friction loss is always expressed in _________. - Correct Answer-Psi per foot Full flow test with water are required for water spray systems by _____ - Correct Answer-NFPA 15 How often does NFPA 20 require a fire pump to be run? - Correct Answer-Monthly How often should a main drain flow test be conducted? - Correct Answer-Quaterly In a centrifugal pump, the water is drawn in at the center of and slung outward to the rim of the___ - Correct Answer-Impeller In a preaction system, a maximum of ________ sprinklers may be controlled by one deluge valve - Correct Answer-1,
