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2020 first grade fire engineer technical practice chapter exercises twenty-four

点击量: Release time: January 9, 2020 10:35:33 Source: Global Online School Traffic:

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    [Abstract] 2020 first-level fire engineer exam preparation has begun, Global Network School has organized "2020 First-Class Fire Engineer Technical Practice Chapter Exercises" for you. For more test preparation materials, simulation test questions, and real questions over the years, please continue to pay attention to Global Online School First class fire engineer exam channel!

    Related recommendations: 2020 first-tier fire engineer technical practice chapter exercise summary

    1. The size of the safety gap reflects the explosive transmission capacity of explosive gas mixtures. Explosive gas mixtures are classified into IIA, IIB, and IIC according to the size of the maximum test safety clearance. The maximum test safety clearance is under standard test conditions. After all concentrations of the test gas or vapor and air mixture in the shell are ignited, the two (2) mm long joint surfaces cannot ignite the two parts of the shell cavity of the explosive gas mixture outside the shell. The maximum gap between.

    A.15

    B.20

    C.25

    D.40

    2. The following statement about the continuous power supply time of the backup power supply for fire emergency lighting and light evacuation indication signs set in the building is incorrect ().

    A. Public buildings with a building height of 120m should not be less than 90min

    B. Residential buildings with a building height of 60m should not be less than 60min

    C. The elderly apartment with a building height of 18m should not be less than 60min

    D. Schools with a building height of 24m should not be less than 30min

    3. There is a total of 186 houses in Building No. 1 in a residential area, with a building height of 95m and a total building area of 23,000m2. The temporary high-pressure water supply system is used and a high-level water tank is installed. The water storage capacity of the high-level water tank should not be less than () m.

    A. 12

    B. 10

    C. 18

    D. 24

    4. "Water Supply Code for Fire Water Supply and Fire Hydrant System" GB50974-2014 is China's first special specification for fire water supply and fire hydrant system, covering system design, construction, commissioning, acceptance and system maintenance management. Drainage system design plays an important role. The following rules regarding the installation of indoor fire hydrants are incorrect ().

    A. The water-filled water column of the indoor fire hydrant shall be determined by hydraulic calculation and shall not be less than 10m

    B. The distance between indoor fire hydrants should be determined by calculation. When it is ensured that the filling water column with two water guns adjacent to the same layer reaches any part of the protected area at the same time, the distance between fire hydrants should not be greater than 32m; when one water gun is guaranteed to be full When the water column reaches any part of the room, it should not be greater than 50m

    C. The indoor fire hydrant should be set at a location that is obviously easy to access; the direction of the water outlet of the fire hydrant should be perpendicular to the wall surface where the fire hydrant is installed, and the height of the hydrant mouth from the floor should be 1.10m; uniform fire hydrant, water gun and Water hose, the length of each hose should not be greater than 25m

    D. The dynamic pressure of the fire hydrant mouth should not be greater than 0.5MPA. When it is greater than 0.7MPa, a pressure reducing device should be provided

    5. A national cultural relics protection unit was built in 1926, and was built by Chinese and foreign businessmen and government funds. It covers an area of about 23,000 square meters and a construction area of about 3750 square meters. There is an automatic fire alarm system and a sprinkler system to protect it. The effective area of the basic parameters of the sprinkler system design is () ㎡.

    A. 100

    B. 160

    C. 180

    D. 260

    6. An office building has a height of 32m, a total of 9 floors, and each floor area is 1200 ㎡. The building is equipped with a hydrant fire extinguishing system, a sprinkler system, and an automatic fire alarm system. If each floor of the office building is used as a calculation unit, the minimum fire extinguishing level with fire extinguishers on each floor is ().

    A.16A

    B.8A

    C.12A

    D.6A

    See answer

    Reference answer: CBCBBB

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    ”页面进行下载学习。 Global Network Alumni Tips: The above is the "2020 First-Class Fire Engineer Technical Practice Chapter Exercise" organized by the Global Network School Fire Engineer Channel for you. For more simulated test questions, real questions over the years, high-frequency test sites, test preparation strategies, please click below " Free Download "page for download learning.

    share to: Edit: Sun Qing

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