Class 1 Flashcards
Of the following: the color of the fixed electrical equipment ground wire is:
Green
A valve has a number 150 cast on the side of the valve, the number 150 indicates the:
Pressure rating of the valve
In group A-5 (amusement park structures, bleachers, grandstands and stadiums), an automatic sprinkler system shall be provided in all enclosed areas of the structure, including but not limited to the concession concourse, concession stands, retail areas, press boxes and other accessory occupancies, in excess of : (NYC Bldg. code 2014 — 205,903.2.15)
1000-square feet (93-m^2)
A cryogenic fluid is a liquid having a boiling point lower than: ( NYC Bldg. code, 2014, — 34, 307.2 Definitions)
-130 (F)
In sprinkler installations, the above ground supply pipe directly connected to the water supply: (NFPA 13,1989, 3-4, 3-2)
System Risers
The specification for a piece of equipment reads as follows; 208- volt 3-phase 10- H.P. The piece of electrical equipment is most likely a:
Motor
The location of standpipe risers and 2-1/2-inches angle hose valve shall be located: (NFPA, 2007 —- S-39, 6.1.2.2Q)
Shall be protected by a degree of fire resistance equal to that required for enclosed exit stairways in the building in which they are located / Standpipes and lateral piping supplied by standpipes shall be located in enclosed exit stairways
Standard weight pattern malleable iron fittings 6-inch (150 mm) in size and smaller shall be permitted where pressure do not exceed: (NFPA 13, 2007 — 13-30, 6.4..4.1)
300-psi
If 10 fitters can put up 100-feet of sprinkler pipe in 4- hours how many fitters are needed to put up 1,500-feet of pipe in 25-hours:
(1) 10- fitters, 100- ft. pipe in 4-hrs. (2) 100/10 = 10-ft.per fitter per 4-hrs. (3) 10/4 = 2.5-ft. per fitter per hr. (4)2.5-ft. per/fiiter per/hr. X 25 hrs.= 62.5-ft. per/fitter per/25-hrs. (5) 1,500-ft. of pipe / 62.5-ft.per fitter per 25-hrs. = 24-fitters
Metric Units of Measurement in the standard are in accordance with modernized metric system known as the international system of units, this symbol of units used is: (NFPA 13, 2007, 13-13, Table 1.7.1.3)
SI
The bottom of the topmost gravity zone gravity tanks shall be located above the highest hose outlet in the zone that such tank supplies, expecting the roof manifold and those outlets in a penthouse enclosing mechanical equipment. Pressures may be boosted: ( NFPA 14, 2007 — S-77, Standpipe hose wheel handles.9.4(k) )
By the use of automatic special service pumps/ Fire pumps to provide hope outlet pressures/ Tanks in intermediate zones may be sufficiently elevated to provide the pressures required
the domestic water supply may be used to supply any sprinklers required by the New York City Building COde Section 903 when installed in buildings classified in groups B, E, 1 and R and not classified as high-rise building, provided that all the requirements are met: (Appendix Q Section BC-Q102, Page 9,10,15.1.1 (b) (1)(3)(4)(5) )
The domestic water supply line from the tank or street shall be at least the size of the sprinkler line and the capacity available shall be at least equal to the capacity required for the sprinklers / The domestic water supply line shall be of nonferrous material except when the domestic water supply is four inches or more, the pipe connecting the domestic water supply shall be nonferrous and not less than twelve-inches long / An O.S. and Y. Valve or other listed valve having visual indication, and sealed open, shall be installed in the sprinkler supply branch, or such other valve arrangement as may be provided in this reference standard and in reference standards NFPA-13R or NFPA 13-D as modified for N.Y.C.
What does WOG casted into side of a valve indicate:
Water, oil & gas
if a pressure gauge reads 74-psi at the top of a 75-foot building, what is the pressure at the fire department connection:
.434 X .75 = 32.55 +74.00 = 106.55-PSI
The Purpose Of a sprinkler standard is based on: (NFPA 13, 2007, 1.2.1 — NFPA 13, 1989, 1-1, Chapter 1, General Inf. 1-2)
To Provide A Reasonable degree of protection for life and property from fire through installation requirements for sprinkler systems based upon sound engineering principals, test data, and field experience
A set of sprinkler heads and pipe plans are drawn to scale 1/8- inch per foot. A horizontal line measures 16-3/4-inch on the plan. The actual measurement should be:
134-Feet
In Group F (Factory and industrial) an automatic sprinkler system shall be provided throughout all buildings were any one of the following conditions exist: (NYC Bldg. code, 2014 — 205,903.2.4)
Where a group F-1 (moderate hazard) fire area exceeds 12,000-square feet (1115 m^2) / Where a group F-1 (moderate hazard) fire areas is located more than three-stories above grade / Where the combined area of all group F-1 (moderate hazard) fire areas on all floors, including any mezzanine, exceeds 24,000-square feet (2230m^2)
Of the following types of heat detectors the one that does not initiate an alarm when the detecting element reaches a predetermined set temperature is known as: (NFPA 72, 2002, National Fire Alarm code, 72-109, 11.7.3.2*, “Automatic Fire Detectors”
Rate-of-temperature rise detector
When a sprinkler system is installed: (NFPA 13, 2007, 6.2.1)
Only new sprinklers shall be installed
Test 1.1 Question
Answer
Residual Pressure required in light hazard classification at the highest sprinkler: ( NFPA 13, 2007, 13-115, 11.2.2.8.1, Table 11.2.2.1)
15 P.S.I.
Standpipe systems shall not be required to be altered on existing systems to conform to the provisions of the law when systems are existing on: ( Local Law 99-2005, 2002 NFPA 13)
July 1, 2008
Two Units (liter and bar), outside of but recognized by SI, are commonly used in international fire protection. These units are listed with conversion factors. The conversion factor from one gallon to a liter: (NFPA 13, 2007, 13-13, Table 1.7.1.3, SI Units and Conversion Factors)
3.785-L
Of the following types of fire alarms signaling systems the one that requires that the owner must always be present on the premises to transit the alarm to the fire authorities is known as the:( NFPA 72-21, 3.3.142)
Proprietary system
When inside hose stations are planned or are required by other standards, a water allowance of _______ G.P.M. For a one hose installation and ________ G.P.M. for a two or more hose station installation shall be added to the sprinkler requirement at the point of connection to the system at the pressure required by the sprinkler system design: (NFPA 13, 2007, 13-119, 12.8.4 (1)&(2)
50, 100
A set of sprinkler/ standpipe pans are drawn to scale of 1/8- inch per foot. A horizontal line measuring 16-3/4-inch on the plan should actually measure:
16.75 X 8 = 134-feet
Light Hazard occupancy is defined as: (NFPA 13, 2007, 5.2* —NFPA 13, 1989, 1-4, 1-7.2.1*)
Occupancies or portion of other occupancies where the quantity and/or combustibility of contents is low and fires with relativity low rated of heat release are expected
Automatic Sprinkler systems shall be monitored by an approved supervising station with the exception: ( N.Y.C. Bldg. code 2004, Chapter 9, Fire Protection systems, Page 199, 901.6.1)
A supervising stationed is not required for automatic sprinkler systems protecting one-and-two-family dwellings / Limited area sprinkler systems serving fewer than 20-sprinkler heads/ Limited are sprinkler systems serving fewer than 10-sprinkler heads
Class 111 standpipe systems shall be installed throughout the following buildings: (NYC Bldg. code, 2008 — 183,905.3.1 (1), (2), (3))
In buildings two stories or more in height with floor are of 10,000- square feet (929-m^2) or greater on any story / In buildings three stories or more in height with floor are of 7,500-square feet (697-m^2)or greater on any story / In buildings of any area with a floor level having an occupant load of 30 or more that is located 55-feet (16 764-mm) or more above the lowest level of Fire Department vehicle access
In a standpipe, a check valve is installed horizontally in the piping coming from the city water connection. Of the following types of check valves, the one which should be used in this installation: (NFPA 14, 2003 —- S-59, 6.2.1)
Swing check
Fire department connections for sprinkler, standpipe and/or combined systems shall be: ( NFPA 14,2007 —- S-26, Q4.8.2, Q4.8.2.1)
Two three-inch internally threaded swivel fitting having threads conforming to FDNY standards, equipped with caps painted red(Standpipe) / Two three-inch internally threaded swivel fitting having threads conforming to FDNY standards, equipped with caps painted yellow (Combined) / Two three-inch internally threaded swivel fitting having threads conforming to FDNY standards, equipped with caps painted green (Sprinkler)
Test of drainage facilities shall be made while the control valve is wide open. The main drain valve shall be opened and remain open until the system: (NFPA 13, 2007, 13-13, Table 1.7.1.3)
Pressure Stabilizes
Black rings are not permitted on welding pipe connections in most fire suppression pipe systems because they will most probably
Reduce the inside diameter at the welded joint
Within a year certain piping material rose from $250.00 to $270.00 for the same quantity. The percentage price increase was:
.08 X 250= 20 — 250 - 270 = 20 difference— 20/250 = .08%
The term “should” is defined: (NFPA 13, 2007, 3.3.5 — NFPA 13, 1989, 1-3, 1-3*)
Recommendation or that which is advised but not required
Pipe fittings used in fire suppression piping systems are usually designed in accordance with: ( NFPA 2007,13-29, Table 13-29, Table 6.3.1.1 8-2)
National Fire Protection Association Specifications
In areas subject to freezing, a listed ______ _____ valve that is arranged to allow drainage without causing water damage shall be installed in the piping between the check valve and the fire department connection: ( NFPA 14, 2014 — S-46, 6.4.4)
Automatic Drip
Using the following type of hangers, the one that is most commonly used in sprinkler piping work: (NFPA— Fire handbook)
Split ring type / Clevis type
Standpipe systems are not required in buildings occupied entirely by: (NYC Bldg. code, 2008 — 183, 905.3 Exception — 37, 310.1.3)
Group R-3
An automatic sprinkler system shall be provided throughout any Group F-1 (moderate hazard) occupancy fire area that contains woodworking operations in excess of _____ square feet (231 m^2) in an area that generate finely divided combustible was or use finely divided combustible material: (NYC Bldg. code, 2014 —- 205,903.2.4.1)
2,500
Extra-strong weight wrought steel pipe approximately corresponds to:
Schedule 80
What is the test pressure on an initial test for a new sprinkler system: ( Fire department connection) (NFPA 13, 1989, 17-19, 27-967 (a) —- NFPA 14, 2003, S-97, 11.4.1*)
200 PSI (NFPA 13 —- 17-19, 27-967 (a) — NFPA 14, S-97, 11.4.1*)
Limited area sprinkler systems serving fewer than ___ sprinklers on any single connection is permitted to be connected to the domestic service where a wet automatic standpipe is not available. Limited area sprinkler systems connected to domestic water supplies shall comply with NFPA 13: ( N.Y.C Bldg. Code 2014, CHapter 9 Fire protection systems, Page 210, 903.3.5.1.1)
20
All electrical wiring of a fire alarm system NFPA, 72,110 and NFPA 111 in a fire suppression system must be installed in accordance with: (N.Y.C. BUilding code 569, 2701.1)
New York City Electrical Code
In fire suppression piping system a 2- inch pipe is connected to a 1 - inch pipe through an appropriate reducer fitting. when the system is activated and both pipes are flowing full, the velocity of the fluid in the 1- inch pipe is most nearly:
4-times the velocity of that in the 2-inch pipe
Where should audible signal be sent in a fire alarm system: ( NYC Bldg. code 2008 — 173, 901.6)
Approved central supervising station in accordance with NFPA 72
Pipe joined with mechanical grooved fittings shall be joined by a listed: (NFPA 13, 2007 — 13-31, 6.5.3 — NFPA 13,1989 — 3-19, 3-7.3.1, Exception :)
Dimensionally compatible with the fitting / Grooved fittings, including gaskets used on dry pipe, preaction, and deluge system, shall be listed for dry pipe service / Combination of fitting, gaskets and grooves.)
The vertical pips in a sprinkler system: (NFPA 13, 1989, 3-4, 3-2)
Risers
Cross Connections shall be at least as large as the largest riser supplied by the cross connection. However, When supplying two, but not more than four 4-inch risers, the cross connection shall not be less than _____ inches: (NFPA 14, 2007 —- S-52, 7.5Q (4) )
5-inches
To prevent the bottom of an extension ladder from slipping the ladder side rails are often fitted with: (OSHA Rules)
Shoes
An automatic sprinkler system shall be provided throughout all buildings used as repair garages in accordance with section 406 (motor-vehicle-related occupancies) as follows: (NYC Bldg.code, 2015 — 205, 903.2.4.2)
Buildings two or more stories in height, including basements, with a fire area containing a repair garage exceeding 10,000- square feet (929-m^2) / One story building with a fire area containing a repair garage exceeding 12,000-square feet (1115-m^2) or buildings with repair garage servicing vehicles parked in the basement / A group F-1 fire area used for repair of commercial trucks or buses where the fire area exceeds 5,000-square feet (464-m^2)
Sprinkler fittings used in fire suppression in piping systems in New York City are sized and designed in accordance with which agency: (NFPA 13, 1989 — 3-2, Table 3-.1.1.1 and 3-21, Table 3-8.1.1)(NFPA 13, 2007 — 13-30, Table 6.4.1 and 6.4.3)
National Fire Protection Association
assembly group A occupancy includes, among others, the use of a building or structure or a portion thereof, excluding a dwelling unit, for gathering of any number persons such as: ( NYC Bldg. code, 2014 — 27, 303.1)
Civic, social or religious functions, recreation, food or drink consumption / Awaiting transportation, or similar group activities / when occupied by 75-persons or more for educational or instructional purposes