Introduction
1.When the fire water supply pipe network uses overhead pipes, its installation location should meet the design requirements, and the following statements are correct ( ).
A. Fire water supply pipe through the basement walls, building walls and roof waterproofing requirements, to set up a fire casing
B. Fire water supply pipe through the wall or floor should be added casing, casing length is not less than the thickness of the wall, or higher than the floor or the ground 100mm
C. Fire water supply pipe must be passed through the expansion joints and settlement joints should be used. Bellows and compensators and other technical measures
D. Pipes outside the use of coated red ring mark, red ring mark, the width should not be less than 20mm, the interval should not be greater than 2m
2. Fire water supply system network water pressure tightness test in the water pressure strength test and pipe network flushing after passing. Test pressure should be (), stabilized pressure 24h, there should be no leakage.
A. 0.8 times the design working pressure of the system
B. Design working pressure of the system
C. 1.2 times the design working pressure of the system
D. 1.15 times the design working pressure of the system
3. Fire water supply network flushing pipes with diameters greater than ( ), should be dead center and the bottom of the knock, but shall not damage the pipe. Pipeline.
A.DN65
B.DN75
C.DN100
D.DN150
4. According to the "Fire Water Supply and Fire Hydrant System Technical Specification". The following on the fire water supply and fire hydrant system valve maintenance management, incorrect ( ).
A. Rainforest valve attached to the solenoid valve should be inspected monthly and should be made to start the test, the action should be replaced in a timely manner when the malfunction
B. Monthly electric valves and solenoid valves and the power supply and opening and closing performance of the test
C. Every day should be the water supply control valve, alarm valve group for appearance check, and should ensure that the system is in a trouble-free state
D. Monthly should be the system All of the end of the water test valve and alarm valve water release test valve for a water release test
5. building fire, the direction of smoke flow is usually a major direction of fire spread. Generally, 500 ℃ or more hot smoke wherever it goes, encountered combustible materials are likely to be ignited fire. When a fire occurs in a high-rise building, the smoke in the building flow spread the most important route is ( ).
A. fire room ---- outdoor
B. fire room ---- corridor ---- stairwell ---- upper floors ---- outdoor
C. fire room ---- adjacent to the room on the upper floors ---- outdoor
D. fire room ---- corridor ---- stairwell ---- outdoor
6. The correct statement about the classification of foam fire extinguishing systems is ( ).
A. According to the structure of the system can be divided into full flooding, local application, mobile, foam - water spray, foam spray system
B. According to the form of the system can be divided into fixed, semi-fixed, mobile system
C. According to the foaming multiples can be divided into: high multiples, multiples of the foam extinguishing system, low multiples of foam
D. According to the spray can be divided into: liquid spray, liquid spray system, liquid spray system
D. According to the method of spray can be divided into: liquid spray, liquid spray, liquid spray, liquid spray, liquid spray system. Spray, liquid spray system
7. The following scenes need to be powered by the secondary load ( ).
A. Outdoor fire water consumption is greater than 25L / s warehouse
B. Outdoor fire water consumption is greater than 30L / s combustible materials yard
C. Two types of high-rise civil buildings
D. Large-scale material warehouses
8. The following on the setup of the fire pool requirements, the statement is wrong ( ).
A. When the outdoor water supply network to ensure that the outdoor fire water, the effective capacity of the fire pool should meet the time in the continuation of the fire indoor fire fighting in the building (structure) water requirements
B. When the outdoor water supply network can not ensure that the amount of outdoor fire fighting in the effective capacity of the fire pool should be met in the continuation of the fire indoor fire fighting in the time required
C. The fire pool should be set up to ensure that the fire fighting in the fire indoor water requirements
D. Large material warehouse
8.The following statement on the requirements of the fire pool is incorrect ( ).
C. In case of fire can ensure continuous replenishment of water, the capacity of the fire pool can be subtracted from the amount of water replenished during the fire extension time, the replenishment time of the fire pool should not be more than 48h
D. For the fire pool, when fire fighting water and other water use, there should be to ensure that the fire fighting water is not used by the other technical measures
9.Centralized control of the type of emergency lighting and evacuation instructions Centralized control type emergency lighting and evacuation instructions system non-fire state of the system function debugging, cut off the floor of the normal lighting distribution box power supply, the system of normal lighting power-off control function to check and record, the following about the system of normal lighting power-off control function of the statement is wrong ( ).
A. The light source of the non-continuous type of lighting on this floor shall be lit in emergency
B. The light source of the continuous type of luminaires on this floor shall be shifted from the power-saving lighting mode to the emergency lighting mode
C. Restoring the power supply from the power distribution box of the emergency lighting for normal lighting, the light sources of all the luminaires on this floor shall be resumed to their original working state.
D. Normal lighting distribution box should be switched to standby power supply E. After the return of normal power supply, the light source of all lamps and lanterns in the region should be all lighting state
10. The following on the setting of industrial buildings need to smoke exhaust system is correct in which of the following statements ( ).
A. C production sites with more people
B. C plant floor area of 300 square meters and often people stay or combustibles more rooms on the ground
C. Height of 25m high-rise plants (warehouses) in the length of 20m of the evacuation aisle
D. Covering an area of more than 1,000 square meters of Class C warehouse
E Building area of 6000 square meters of Category D plant
Case study of a large restaurant building 6 floors above ground, 3 floors below ground, frame structure, a fire-resistant grade. The height of each floor is 4 m. The building height is 24 m. The building area of each floor is 4000 m2.
The main function of the third underground is a car garage, fire pump room, diesel generator room and ventilation and smoke extraction room, divided into the same size of the two fire zones; the main function of the second underground is a car garage, dry-type transformer room, transformer and power distribution room, fire control room, ventilation and smoke extraction room and Class C ancillary storehouse, ancillary storehouse, and Class C ancillary storehouse, and Class C ancillary storehouse.
The main function of the first floor is kitchen, 2 private rooms with a floor area of 300m2, 5 private rooms with a floor area of 60m2, and 2 restaurants with a floor area of 900m2, of which the kitchen is divided into an independent fire protection partition, separated from the other parts by a fire partition wall with a fire-resistant limit of not less than 2.00h, and the partition wall is opened with a Class B fire door. The first floor is divided into 2 fireproof partitions except for the kitchen, 2 restaurants are divided into one fireproof partition, and the private room is divided into one fireproof partition. Each fire partition is equipped with a closed stairwell that leads directly to the outdoor, and a Class A fire door leading to the adjacent fire partition is set as the second safety exit.
The main functions of the first to sixth floors above ground are kitchen, private rooms (the private rooms are arranged against the outer wall and have openable windows) and restaurant. The kitchen is separated from other parts by fireproof partition walls with fire resistance limit not less than 2.00h, and Class B fire doors are opened on the partition walls.
The private rooms of the building have the function of karaoke.
The building has a kitchen on the first basement floor and the third and sixth floors above ground, and the gas introduction pipe enters the corridor of the basement private rooms from the outdoor, passes through the firewall and enters into the gas pipe well of the kitchen, and is supplied by a gas pipe well, and natural gas stove is used, and there is no external window. The fire-resistant limit of the well wall of the gas pipe well is not less than 1.00h, the door on the wall of the well adopts Class C fireproof door, and the gas pipe well is sealed with fireproof blocking material at the floor slab of the third and sixth floors.
There is an atrium on the first to sixth floors of the building, and the projected floor area at the bottom of the atrium is 200 m2, and an ordinary freight elevator is set on each floor from the third basement to the sixth floor of the building, and two ordinary passenger elevators (sightseeing elevators) are set on each floor from the first basement to the sixth floor of the building, and no fire elevators are set. The building adopts EPS board as the external heat preservation material.
The building is equipped with fire-fighting facilities and equipments according to the current technical standards of fire-fighting in national engineering construction.
1. Stem: point out that the building in the construction of fire safety problems, and put forward corrective comments
2. Stem: point out that the building in the external wall insulation and other aspects of fire safety problems, and put forward corrective comments.
1. Reference Answer: C
Answer Analysis: fire water supply pipe through the basement walls, building walls and roofs and other waterproofing requirements, waterproof casing should be set up. a option error. Fire water supply pipe through the wall or floor should be added casing, casing length is not less than the thickness of the wall, or 50mm above the floor or ground. b option error. The outside of the pipe should be painted with red paint or red ring mark, and indicate the name of the pipe and the direction of water flow identification. Red ring mark, the width should not be less than 20mm, the interval should not be greater than 4m, in an independent unit ring should not be less than two. d option wrong.
2. Reference Answer: B
Answer Explanation: Hydraulic tightness test in the hydraulic strength test and pipe flushing after passing. Test pressure should be the system design working pressure, stabilized pressure 24h, there should be no leakage.
3. Reference Answer: C
Answer Analysis: Fire water supply network flushing pipe diameter greater than DN100mm, should be its dead center and the bottom of the hammer, but shall not damage the pipeline
4. Reference Answer: D
Answer Analysis: Maintenance and management of valves should be in line with the following provisions:
1 Rainforest valves attached to the solenoid valve should be Monthly inspection and start test should be made, when the action is out of order should be replaced in time;
2 Monthly electric valve and solenoid valve power supply and opening and closing performance should be tested;
3 All the control valves on the system should be used seals or chains fixed in the open or specified state, monthly seals and chains should be inspected, when there is destruction or damage should be repaired and replaced in time;
4 Quarterly should be outdoor valve wells, the control valve on the inlet pipe for an inspection, and should verify that it is in a fully open state;
5 Daily should be water control valves, alarm valves for the appearance of the inspection, and should ensure that the system is in a trouble-free state;
6 Quarterly should be all the system's end of the water test valves and alarm valves of the discharge test valve to carry out a water test, and should check the system start, alarm function, and should be repaired and replaced. And should check the system startup, alarm function and water discharge is normal.
5. Reference Answer: B
Answer Explanation:
When a fire occurs in a high-rise building, smoke in the building flow diffusion of the main routes for the 1. fire room ---- outdoor. 2. fire room ---- corridors ---- stairwells ---- the upper floors ---- outdoor. 3. fire room ---- adjacent to the upper floors of rooms ---- Outdoor.
6. Reference Answer: C
Answer Explanation:
Foam fire extinguishing system can be divided into fixed, semi-fixed, mobile system according to the system structure; according to the form of the system can be divided into a full flooding, localized application, mobile, foam - water spray, foam spray system; according to the spray method can be divided into: liquid spray, liquid spray system, semi-liquid spray system.
7.Resolution B
According to the "Building Design Fire Prevention Code" GB50016-2014 (2018 Edition) 3.3.2 Note 4, independently constructed ammonium nitrate warehouses, calcium carbide warehouses, polyethylene and other sub-products warehouses, etc., when the fire resistance class of the building is not less than Grade 2, the maximum permissible footprint of each warehouse and the maximum permissible permissible per fire protection zone The maximum permissible floor area of each warehouse and the maximum permissible floor area of each fireproof partition can be increased by 1.0 according to the provisions of this table, option A is correct; Category A and B production sites (warehouses) should not be set up in the underground or semi-subterranean, Category C warehouses can be set up in the fire-resistance level of one or two underground, semi-subterranean buildings, so option B is wrong; according to note 1 of 3.3.2, the fire partition in the warehouse must be separated by firewalls, and fire walls between fireproof partition in the warehouse of Category A and B should not be opened doors, windows, openings, or other openings. Doors, windows, holes should be opened; C option is correct; according to 3.3.3, the warehouse set up automatic fire extinguishing system, in addition to the cold storage of the fire partition, the maximum permissible floor area of each warehouse and the maximum permissible floor area of each anti-big partition can be increased by 1.0 times in accordance with the provisions of Article 3.3.2 of the specification, D option is correct. The answer to this question is B.
8. Reference Answer: B
Answer Explanation:
When the outdoor water supply pipe network can not guarantee the amount of outdoor fire fighting water, the effective capacity of the fire fighting pool should be satisfied in the continuation of the time of the fire indoor fire fighting in the building (structure) and outdoor water supply water requirements and insufficient water supply.
9. Reference Answer: D, E
Answer Analysis: According to the "Fire Emergency Lighting and Evacuation Indicator System Technical Standards" non-fire state of the system function debugging:
Cut off the fire zones, floors, tunnels intervals, the subway platforms and station halls of the normal lighting distribution box power, according to the provisions of the system design documents, the system's normal lighting power-off control function Check and record, the system's normal lighting power-off control function should be consistent with the following provisions:
10.Reference Answer: A,D,E
Answer Analysis:
Personnel, combustibles more than the production of Category C, Category C plant floor area of more than 300 square meters and often people stay or combustibles more than the ground floor rooms, floor area of more than 5000 square meters Category D production workshop, covering an area of more than 1,000 square meters of Category C warehouses, height greater than 32m high-rise plants (warehouses) in the length of more than 20m of the inner aisle, other plants (warehouses) in the length of more than 40m of the evacuation of the aisle, underground, semi-underground buildings (rooms), above ground in the building of a windowless room, when the total floor area of more than 200 square meters or a room with a floor area of more than 50 square meters, and often people staying or more combustible materials.
Case study
1, the answer:
Analysis: ① gas pipe through the firewall, unreasonable. Combustible gas piping is strictly prohibited through the firewall; therefore, the gas introduction pipe should be directly from the outdoors into the kitchen where the fire partition, should not cross the other fire partition and then enter the kitchen where the fire partition.
② gas pipe wells in the third floor, six floors of the floor with fire blocking material blocking, unreasonable. Cable wells in the building, pipe wells should be used in each floor of non-combustible materials not less than the fire-resistant limit of the floor or fire plugging material sealing.
2, the answer:
Ans: ① building EPS board as the external wall insulation materials, unreasonable. The building is a densely populated places, insulation materials should be A, EPS board combustion performance for B2 level, so the EPS board should be changed to rock wool, mineral wool and other A-class materials.
② underground three to the second floor of the ground floor to set up two closed stairwells per floor, unreasonable.
First, the height difference between the indoor floor of the third floor of the ground floor and the floor of the outdoor entrances and exits is 12m, and smoke-proof stairwells should be set up.
Second, the third floor of the ground floor is 2 fire zones, each fire zone should be set up at least 2 evacuation stairs, so the third floor of the ground floor needs 4 evacuation stairs.
③ The building does not have a fire elevator, unreasonable. Buried deeper than 10m and the total floor area of more than 3000m2 of other underground or semi-underground buildings (rooms) should be set up fire elevators.
Second, the third floor of the ground floor for two fire zones, each fire zone should be set up at least two evacuation stairs, so the third floor of the ground floor needs four evacuation stairs.
③ The building does not have a fire elevator, unreasonable. Buried deeper than 10m and the total floor area of more than 3000m2 of other underground or semi-underground buildings (rooms) should be set up fire elevators.
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