Question bank and answers of the latest national fire-fighting facility operators (primary fire-fighting facility operators) in 2022

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104. The following does not belong to C The causes of this kind of fire are （）.

A. Metallic sodium

B. Peanut oil

C. The TV

D. methane

answer ：ABC

analysis ： Classification of fire : Classification according to the type and combustion characteristics of combustibles in fire :C Class I fire refers to gas fire . Such as gas 、 Natural gas 、 methane 、 Ethane 、 propane 、 Hydrogen, etc .

105. According to the number of hydrant valves, indoor fire hydrants can be divided into :（）.

A. Single outlet indoor fire hydrant

B. Single hydrant valve indoor hydrant

C. Double outlet indoor fire hydrant

D. Double hydrant valve indoor hydrant

answer ：BD

analysis ： Indoor fire hydrants can be divided into single hydrant valve indoor fire hydrants and double hydrant valve indoor fire hydrants according to the number of hydrant valves .

106. The information displayed by the fire alarm controller has the wrong priority .（）.

A. Fire Alarm 、 regulatory 、 fault 、 shielding .

B. regulatory 、 fault 、 shielding 、 Fire Alarm .

C. Fire Alarm 、 fault 、 regulatory 、 shielding .

D. Fire Alarm 、 regulatory 、 shielding 、 fault

answer ：BCD

analysis ： Priority of information displayed by fire alarm controller : Fire Alarm 、 regulatory 、 fault 、 shielding

107. following （） It belongs to the closed automatic sprinkler system .

A. Wet system

B. Dry system

C. Pre action system

D. Deluge system

answer ：ABC

analysis ： Wet system 、 Dry system 、 The pre action system belongs to the closed automatic sprinkler system .

108. Electric spark is formed by breakdown discharge between electrodes , A large number of electric sparks converge into an arc . Common are （） etc. .

A. Electric leakage and spark of electrical equipment

B. Spark due to poor contact of electrical circuit

C. Electric arc during electric welding

D. Heated metal parts

answer ：ABC

analysis ： Electric spark is formed by breakdown discharge between electrodes , A large number of electric sparks converge into an arc . Common electric sparks are : Sparks when the electrical switch is turned on or off 、 Short circuit spark 、 Leakage spark 、 Poor contact sparks 、 The spark generated when the relay contact is opened and closed 、 Electric arc during electric welding, etc .

109. In flammable and explosive places , The correct thing to do is （）.

A. Use iron tools

B. Use copper tools

C. Use wooden tools

D. Do not wear spiked shoes

answer ：BCD

analysis ： Impact and friction are fire hazards , In flammable and explosive places , Do not use iron tools , Instead, use copper or wood tools . No spiked shoes , The ground shall be non sparking ground, etc .

 

110. For foam spray systems , Because it is a fighting armor 、 Automatic fire extinguishing system for the initial fire of class B and C liquid , therefore , It is required that the control mode of the system shall have （） function .

A. Automatically

B. semi-automatic

C. Manual

D. Emergency mechanical start

answer ：ACD

analysis ： For foam spray systems , Because it is a fighting armor 、 Automatic fire extinguishing system for the initial fire of class B and C liquid , therefore , The control mode of the system shall be automatic 、 Manual and emergency mechanical starting functions .

111. The setting requirements for the stairwell are correctly stated as （）.

A. The staircase shall not be set against the external wall

B. Combustible gas pipes shall not be laid in the staircases of public buildings

C. Combustible gas pipes and combustible gas meters shall not be laid in the staircases of residential buildings

D. The escape stairs of each unit of the unit house shall lead to the roof

answer ：BCD

analysis ： About the setting requirements of staircases :(1) Staircases are generally set against the external wall , Natural lighting and ventilation ;(2) No water boiler room shall be set in the staircase 、 Combustible material storage room 、 Garbage Road (3) There should be no protrusions or other obstacles that affect evacuation in the stairwell ;(4) A shall not be laid in the staircase 、 B 、 Class C liquid pipeline ;(5) Combustible gas pipes shall not be laid in the staircases of public buildings ;(6) Combustible gas pipes and combustible gas meters shall not be laid in the staircases of residential buildings ;(7) The escape stairs of each unit of the unit house shall lead to the roof .

112. An open flame is a naked fire that produces a combustion reaction , Common are （） etc. .

A. Electrostatic discharge spark

B. Gas welding and gas cutting flame

C. Candle flame

D. Lightning arc

answer ：BC

analysis ： An open flame is a naked fire that produces a combustion reaction , Open fire not only has great excitation energy and high temperature , And the free radicals produced by combustion reaction ( Or active ions ), It will also induce a chain reaction of combustible substances . Common bright flames are : Match flame 、 LIGHTER flame 、 Candle flame 、 Coal stove flame 、 LPG stove flame 、 Industrial steam boiler flame 、 Alcohol blowtorch flame 、 Gas welding, gas cutting flame, etc .

113. Cleaning and maintenance requirements for dry powder fire extinguishers include （） etc. .

A. The fire extinguisher shall be placed in a dry, ventilated and convenient place near the protected object

B. Once the fire extinguisher is opened, it must be recharged

C. Five years or before each refill , Hydrostatic test shall be conducted every two years , Only qualified ones can be used

D. Three years or before each refill of the fire extinguisher , Hydrostatic test shall be conducted every other year

answer ：ABC

analysis ： Cleaning and maintenance requirements for dry powder fire extinguishers include :(1) The fire extinguisher shall be placed in a dry, ventilated and convenient place near the protected object ;(2) Once the fire extinguisher is opened, it must be recharged ;(3) Five years or before each refill , Hydrostatic test shall be conducted every two years , Only qualified ones can be used .