PART I - DUNN CHAP. #11 & 12:

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1 Fire Tech Promotion Course 11/12/12 Fall 2012 On-line Homework Program PART I - DUNN CHAP. #11 & 12: Dunn Chapter 11: 1) From the list below please choose an incorrect point about Lightweight wood truss systems? (Dunn Chapter 11) A) Lightweight wood truss systems use wood members as small as 2 x 4 inches. B) Lightweight wood truss systems are connected by sheet metal surface fasteners, called gusset plates or gang nails. C) Sheet metal connectors are critical to the integrity of the truss during a fire. D) The sheet metal fastener has many V-shaped points punched through it. E) The V-shaped nailing points fasten only the surface of the 2 x 4 inch wood truss. F) The V-shaped points penetrate the wood surface to a depth of only one inch. G) Lightweight trusses may collapse after only about 10 minutes in a fully developed fire. 2) Because of severe hazards associated with truss construction New York has a law requiring to identify truss construction? (Dunn, chapter 11) A) one horizontal line B) two horizontal lines C) two vertical lines D) three vertical lines 3) The rate of fire spread inside a building s concealed spaces that utilizes parallel chord lightweight truss will be faster than in concealed spaces of a building with conventional solid wood beam construction. Please fill in the blank? (Dunn, chapter 11) A) 100% B) 50% C) 75% D) 25% 4) The recommended strategy for fighting a fire in a building with a lightweight wood truss roof or floors is: Please choose the correct strategies from the list below according to Dunn? (Dunn, chapter 11) A) Content fire; if fire is burning content such as a couch or mattress, stretch an interior hoseline and extinguish the fire. B) Structure fire; if fire involves the structure and is burning throughout the concealed roof or floor spaces, the occupants should be removed and an exterior attack should be used. 1 Dunn Chap. #11 & 12

2 Fire Tech Promotion Course 11/12/2012 Fall 2012 On-line Homework Program Dunn Chapter 12: 1) Ceilings are non load bearing structural elements that support only their own weight. Their collapse does not cause the collapse of other structural parts, however ceilings can drop over firefighters and trap them inside burning buildings. Two types of ceilings; those that are directly affixed to the floor or roof joist above and those that are suspended several inches or feet below the joists by vertical strips of wood, steel hangers, or thin wires. Please choose the other correct point(s) about directly affixed ceilings from the list below? (Dunn, chapter 12) A) Older buildings have lath and plaster ceilings which have strips of wood or wire lath nailed to the underside of the joist. Several coats of wet gypsum plaster, is applied to the underside of the lath. B) Newer buildings use dry gypsum board, 4 by 8 in area, 1/4 to 3/8 thick, nailed directly to the underside of the joists. C) At fires a directly affixed ceiling usually collapses in small pieces, rather than in one large section. This usually does not cause serious injury, since only the sheathing falls, not the wood or metal lath above it. D) When the plaster is only 1-2 inches thick & the firefighter is equipped with a properly fitted helmet there is usually no serious injury. E) In older structures, where plaster ceilings are 3-4 inches thick, and feet in height, the collapse of a large area of thick heavy plaster can knock a firefighter unconscious or cause a serious head or neck injury. 2) The most dangerous ceiling is a ceiling. Please fill in the blank? (Dunn, chapter 12) 3) Suspended ceilings are most often found in 3 types of occupancies; stores, top floors of multiple dwellings, and renovated buildings. These ceilings, sometimes called dropped ceilings or hanging ceilings are constructed several inches or feet below the supporting roof or floor joists above. Please choose an incorrect choice concerning suspended ceilings from the list below? (Dunn, chapter 12) A) In stores, these ceilings are used to cover older ceilings, which are now out of fashion and found above. B) On the top floor of multiple dwellings it creates a space to insulate a top floor from sun rays. C) In renovated buildings it s found on every floor of every apartment and is used to reduce the floor height to conserve the energy for heating & cooling the apartment. D) Suspended ceilings present a serious collapse hazard to firefighters when they fail at fires, because the hanger or vertical supports are destroyed by flame, the entire grid framework in addition to the ceiling sheathing collapses. E) It should also be noted that before a suspended ceiling collapse there is always a rapid fire increase. 2 Dunn Chap. #11 & 12

3 Fire Tech Promotion Course 11/12/12 Fall 2012 On-line Homework Program 4) The 3 most common types of suspended ceilings are the wood grid system with a permanently affixed ceiling, the metal grid system with a permanently affixed ceiling, and the lightweight metal grid system with a removable panel ceiling. The ceiling collapse killing most NYC FF s is the. Please fill in the blank? (Dunn, chapter 12) A) wood grid B) metal grid C) lightweight metal grid 5) Immediately after a wood grid suspended ceiling collapses, there is sometimes a rapid increase in fire in the space directly over the fallen ceiling. When a ceiling collapses in one large section the following can occur: Please choose the correct items from the list above? (Dunn, chapter 12) A) The air space below the ceiling is momentarily compressed. B) The air space above the fallen ceiling is momentarily placed under a vacuum. C) If the grid system is constructed of wood, the fire will be fueled by the fallen ceiling grid on the floor and by the joists above. There will be very little time to rescue firefighters trapped below this ceiling. D) The most important 1 st step to rescue members trapped under a collapsed ceiling during a store fire is to sweep the collapse area below the ceiling with a hose line and knock down the flames. E) A ladder should be ready at every fire to rescue trapped victims or firefighters suddenly trapped by ceiling collapse and fire 6) At a ceiling collapse in a store, if members are trapped in shelters / voids at the rear of a store under a suspended ceiling, please choose the correct tactics to use in order to effect their rescue? (Dunn, chapter 12) A) Rescue attempts should be made from adjoining stores; a partition wall, separating stores in a large one-story building, can be penetrated faster than a rear masonry wall. Windows or doors at the rear of a store are usually bricked up or securely locked. B) Hose lines should be positioned into adjoining stores to prevent fire spread when attempting a rescue from an adjoining store. C) Entry into a store beneath a ceiling collapse can sometimes be achieved from below; going down an outside cellar entrance may allow access to the store via an interior cellar entrance. D) The IC should try to limit the number of members participating in the rescue attempt. The combined weight of rescuers can be greater than the weight of the fallen ceiling and can crush the members trapped below. 3 Dunn Chap. #11 & 12

4 Fire Tech Promotion Course 11/12/2012 Fall 2012 On-line Homework Program ANSWERS CHAPTER Answer: F = 1/4 to 1/2 inch 2. Answer: C 3. Answer: A 4. Answer: A & B CHAPTER Answer: All correct 2. Answer: Suspended 3. Answer: E = There is also a subsequent rapid fire increase after a suspended ceiling collapse. 4. Answer: A 5. Answer: A, B, C, E - D = above the ceiling 6. Answer: All are correct 4 Dunn Chap. #11 & 12

5 Fire Tech Promotion Course 11/12/12 Fall 2012 On-line Homework Program PART II VEHICLE DISENTANGLEMENT 1) Which of the following statements about motor vehicle accidents is incorrect? (Veh Disent/Ext 1.1,2.1,2.3,2.5) A) Medical Authorities refer to the first hour from the beginning of an accident with critical injuries as the Golden Hour B) Today s cars have as many as 16 airbags C) Crumple zones that absorb the energy of the impact can complicate the disentanglement effort due to the strength of the deformed metal structures D) The side door beam, when driven into the frame upon impact, will make door removal easier due to its inherent weakness 2) During a drill, a Ladder Co. officer made the following statements about airbags. In which statement should he be corrected? (sec 2.6) A) Airbags can be deployed either electronically or mechanically B) Disconnecting the battery will start the drain time, which varies, for both types of airbags C) Just because an airbag has deployed it does not mean that there cannot be a 2 nd deployment D) The rule of should be observed; at least 5 from side airbags, 10 from driver airbags and 20 from passenger airbags 3) Carrying on with his drill, the Ladder Co. officer continued to share more wrong information. Which of the following statements is incorrect? ( sec 2.7, , 2.9, 2.15) A) The mechanically activated seatbelt pretensioner will remain live even after the battery is disconnected B) Avoid cutting through airbag sensors, gas cylinders and the airbags themselves. Removing the upholstery prior to cutting might be a good practice C) When attempting to gain access to occupants inside of a vehicle with tempered glass, conventional methods used in the past will still work D) Some vehicles may have more than one battery 4) Which of the following size-up considerations at the scene of an MVA is not stated correctly? ( sec 3.2) A) Are additional units required (eg. EMS, Rescue) B) Always transmit a for an emergency when there are several vehicles with numerous patients C) Downed electrical wires, gasoline spill, etc D) Secondary accident considerations, other hazards involved 1 Vehicle Disentanglement

6 Fire Tech Promotion Course 11/12/2012 Fall 2012 On-line Homework Program 5) Disentanglement is the removal of wreckage from around the victim and Extrication is the physical removal of the victim from the vehicle. Which of the following points is incorrect? (sec 3.3) A) Protect the victim with materials such as a blanket or sheet before disentanglement procedures start B) The power unit should be placed in the front or on the sides of the vehicle C) The spreaders and cutters are the tools of choice D) Never position any part of your body between the tool and the vehicle 6) For a vehicle disentanglement and extrication operation, the arriving Engine operated correctly in all of the following below except in which choice? (Emerg Procedures: Vehicle Dist & Extr 4.1) A) The officer should divide the company into two teams B) The officer and one CFR trained firefighter (with trauma bag and cervical collar) proceed to the scene of the accident C) The remaining members shall stretch and charge a precautionary handline D) When fire or hazardous condition exists upon arrival, stretching and charging a hoseline is paramount. Consider a foam handline 7) For a vehicle disentanglement and extrication operation, the arriving Ladder operated correctly in all of the following below except in which choice? (Emerg Procedures: Vehicle Dist & Extr 4.2) A) The officer and inside team proceed to the scene of the accident to initiate a perimeter survey, chock the vehicle and gain access to the victim B) The Roof and OV bring the Hurst tool equipment to the scene of the accident and initiate operation C) The chauffeur uses the apparatus to block off traffic and can be used to bring additional equipment to the scene D) The officer should ensure disconnection of the battery and ensure removal of the positive terminal first 8) For a vehicle disentanglement and extrication operation where only a Ladder Company is and an Engine or EMS is NOT on scene, Ladder members shall stabilize the patient. Do you Agree or Disagree with the above statement? (Emerg Procedures: Vehicle Dist & Extr 4.2) A. Agree or D. Disagree 2 Vehicle Disentanglement

7 Fire Tech Promotion Course 11/12/12 Fall 2012 On-line Homework Program 9) Vehicles are stabilized as they are found and NEVER right a vehicle with a victim inside. Do you Agree or Disagree with the above statement? (Emerg Procedures: Vehicle Dist & Extr 5.2) A. Agree or D. Disagree 10) At the scene of an accident, vehicles found on all four wheels are best stabilized using? (Emerg Procedures: Vehicle Dist & Extr 5.4) A) Life saving rope B) Utility rope C) Step chocks and wedges D) Air bags 11) According to Emergency Procedures: Disentanglement and Extrication, which of the following options would be a good initial choice for entry into vehicles found on their side or roof after they are stabilized? (Emerg Procedures: Vehicle Dist & Extr 5.6) A) Front window only B) Rear window only C) Front or rear window D) Accessible side window 12) When removing a car door during vehicle disentanglement, after crushing the fender to expose the hinges, use the cutters to cut the bottom hinges and then the top hinges, in that order. Do you Agree or Disagree with the above statement? (Emerg Procedures: Vehicle Dist & Extr C) A. Agree or D. Disagree 3 Vehicle Disentanglement

8 Fire Tech Promotion Course 11/12/2012 Fall 2012 On-line Homework Program Answers 1) D. Make door removal more difficult due to its strength 2) B. Only for an electronically activated airbag, not a mechanically activated one 3) C. Will not work 4) B should be considered 5) B. Front or Rear 6) B - The officer and TWO CFR trained firefighters (with trauma bag and cervical collar) proceed to the scene of the accident 7) D - Negative terminal first 8) Agree - Once the Engine or EMS arrive the inside team can pass off patient stabilization 9) Agree 10) C 11) C 12) Disagree - Cut the top and bottom hinges, using cutters, in that order 4 Vehicle Disentanglement

9 Fire Tech Promotion Course 11/12/12 Fall 2012 On-line Homework Program PART III BISP MANUAL {All Ranks - Company Officer & BC Material} ANSWER QUESTIONS as per the 1968 Building Code NOTE: - RETROACTIVE when written means existing buildings built prior to the 1968 Code were also required to conform 113. Regardless of an occupancy group classification, automatic sprinklers are required (retroactive) on all stories below the 1 st story below grade? (Ch 5 Ref 1.2 Pg 4) A. Agree or D. Disagree? 114. Automatic sprinklers are required as indicated in all of the following choices except? (Ch 5 Ref 1.2 Pgs 4-5-6) A. Rubbish chutes and laundry chutes (retroactive) B. Soiled linen collection and sorting areas (retroactive) C. All workshops exceeding 100 square feet in all occupancy groups (retroactive) D. Refuse collection and sorting areas (retroactive) E. Places of assembly in Occupancy Group J-1 (NOT retroactive) F. Catering Establishments & Banquet Halls with an occupant load of 300 or more (retroactive) 115. Drying areas of laundries (retroactive) in which clothes drying machines are installed require automatic sprinklers spaced to cover areas feet in front, rear and to the sides of such machines? (Ch 5 Ref 1.2 Pg 5) A. Two or more, 3 B. Two or more, 5 C. Three or more, 3 D. Three or more, All buildings and spaces classified in Occupancy Group J-1 require automatic sprinklers and this is retroactive to the 1968 Building Code? (Ch 5 Ref 1.2 Pg 6) A. Agree or D. Disagree? 117. Buildings and spaces classified in Occupancy Group J-2 require automatic sprinklers if they have or more dwelling units? (Ch 5 Ref 1.2 Pg 6) A. 3 B. 4 C. 5 D BISP MANUAL

10 Fire Tech Promotion Course 11/12/2012 Fall 2012 On-line Homework Program 118. Which of the following areas normally required to have automatic sprinklers may instead have a smoke detection alarm system supervised by an approved central station? (Ch 5 Ref 1.2 Pg 7) A. Rubbish chutes and laundry chutes B. Soiled linen collection and sorting areas C. Workshops D. Refuse collection and sorting areas E. Laundry areas 119. A Building classified in Occupancy Group E that is either Low-Rise or High-Rise, requires automatic sprinklers if it has a minimum total gross floor area of square feet or more? (Ch 5 Ref 1.2 Pg 7) A. 50,000 B. 75,000 C. 100,000 D. 150, Regarding the need for an automatic sprinkler in any mercantile establishment in which the Fire Commissioner permits the storage of certain amounts of flammable or combustible mixtures, it would be incorrect to state that the system? (Ch 5 Ref 1.2 Pg 7) A. Must conform to the requirements for automatic sprinklers for spaces classified in occupancy group B-1 B. Is required regardless of the size of the floor area C. Is required for cellars and other locations below grade, but not for basements D. May be installed only within a storage room or area (and not the entire floor) if such room or area is segregated vertically and horizontally from surrounding spaces by a fire resistance rating Note: Sprinklers may be required in just an occupancy area, or throughout an entire building ANSWER QUESTIONS as per the 2008 Building Code 121. Group A (Assembly) occupancies requiring automatic sprinklers shall provide the system throughout the floor area where the Group A occupancy is located and? (Ch 5 Ref 1.2 Pg 8) A. The floors immediately above and directly below B. All the floors above C. All the floors below D. All the floors between the Group A occupancy and the level of exit discharge 34 BISP MANUAL

11 Fire Tech Promotion Course 11/12/12 Fall 2012 On-line Homework Program 122. In all Group A occupancies providing live entertainment, the dressing rooms and property rooms used in conjunction with such assembly occupancy shall be provided with an automatic sprinkler system; and stages shall be provided with an automatic extinguisher system. (Ch 5 Ref 1.2 Pg 8) A. Agree or D. Disagree? 123. An officer was incorrect twice when he stated that in the 2008 Building Code, Automatic Sprinkler Systems are required in Group A (Assembly) occupancies A-1, A-2, A-3, and A-4 when? (Ch 5 Ref 1.2 Pg 8) A. The fire area exceeds 12,000 square feet B. The fire area has an occupant load of 300 or more C. The total occupant load of all fire areas occupied by Group A, located on any given floor other than the level of exit discharge, is 300 or more D. An A-1 fire area contains a multi-theater complex E. An A-2 occupancy is used as a cabaret F. The area is used exclusively as a participant sports area where the main floor area is located at the same level as the level of exit discharge of the main entrance and exit 124. Group A-5 requires automatic sprinklers in all enclosed areas of the structure, including areas like concession stands, concession concourses and retail areas; plus accessory use areas in excess of 1,000 square feet. (Ch 5 Ref 1.2 Pg 8) A. Agree or D. Disagree? 125. Regarding Group E (Educational) occupancies, the 2008 Building Code requires automatic sprinklers below the level of exit discharge. The only exception to this is if every classroom throughout the building has at least one exterior exit door at ground level without intervening corridors, passageways or exit enclosures. (Ch 5 Ref 1.2 Pg 9) A. Agree or D. Disagree? 126. Regarding Group E (Educational) occupancies, the 2008 Building Code requires automatic sprinklers throughout all Group E fire areas greater than 20,000 square feet in area. The only exception to this is if every classroom throughout the building has at least one exterior exit door at ground level without intervening corridors, passageways or exit enclosures. (Ch 5 Ref 1.2 Pg 9) A. Agree or D. Disagree? 35 BISP MANUAL

12 Fire Tech Promotion Course 11/12/2012 Fall 2012 On-line Homework Program 127. An officer would be incorrect in which one point when he stated Automatic sprinklers in the 2008 Building Code are required THROUGHOUT THE ENTIRE BUILDING, if there are Group F (Factory) occupancies located in the building and? (Ch 5 Ref 1.2 Pg 9) A. The Group F-1 fire area exceeds 12,000 square feet B. The Group F-1 fire area is located more than 3 stories above grade C. The combined area of all Group F-1 fire areas on all floors, including any mezzanines, exceeds 24,000 square feet D. It is any building erected before , more than 1-story, with a medium or high hazard below its uppermost floor E. It is a non-fireproof building erected after , more than 1-story, with a high hazard below Its uppermost floor 128. A Group F-1 occupancy requires an automatic sprinkler THROUGHOUT THE OCCUPANCY, if the fire area is in excess of square feet and contains a wood working operation that generates finely divided combustible waste or uses finely divided combustible material? (Ch 5 Ref 1.2 Pg 9) A. 2,500 B. 3,000 C. 5,000 D. 7,500 ANSWERS 113. Agree 114. C (all occupancies except 1 or 2 family dwellings) 115. B 116. Disagree (Not retroactive for J-1 Residential Hotels see ) 117. B 118. C and E (see ) 119. C 120. C (Including Basements) 121. D 122. Agree 123. A, F (A exceeds 12,000 is for A-1, A-3, A-4; Exceeds 5,000 is for A-2) (F is an exception) 124. Agree 125. Agree 126. Agree 127. E (NFP after , Sprinkler required on the story w high hazard occupancy and all floors above not the whole building) 128. A 36 BISP MANUAL