2020 fire engineer exam practice every day 1.2.

1. 18-storey residential building with a building height of 54m, one staircase and four households, each with a building area of 90m? Each unit is equipped with a fire elevator and a passenger elevator. The total number of indoor fire hydrants installed in each unit of the building should not be less than ().

Answer 9

18

C.27

Cao 36

2. The design flow of indoor fire hydrant in a multi-storey public building is15l/s. When the automatic sprinkler system is fully protected, the design flow of indoor fire hydrant can be reduced to () l/s..

Answer 5

B.7.5

C. 10

D. cannot be reduced

3. The following automatic sprinkler system, closed nozzle is ().

A. Fire separation water curtain system

B. Protective cooling water curtain system

C. rainwater system

D. Protective cooling system

4. When the conveying pipe of the deluge system controlled by the conveying pipe depressurizes, which of the following is incorrect ()?

Linkage open deluge valve.

B. Automatically start the spray pump

The hydraulic alarm went off.

D pressure switch does not act.

5. The automatic sprinkler system with fire separation function is ().

A. Wet system

B. Dry system

C. Pre-action system

D. Water curtain system

6. The wet system is suitable for the environment where the temperature is not lower than 4℃ and not higher than ().

A. 100℃

90 degrees centigrade

About 85℃

Diameter 70℃

7. The following statement about fire protection design of boiler room in civil buildings is incorrect ().

A. When there is an oil storage room in the boiler room, its total oil storage should not be greater than 1m?

B the boiler room arranged in the building shall be separated from other parts by a fireproof partition wall with a fire resistance of not less than 2.00h and a nonflammable floor with a fire resistance of1.50 h.

C. On the fuel supply pipeline of the boiler in the building, before entering the building and in the equipment room, an automatic cut-off valve or a manual cut-off valve is set.

D the lower part of the oil tank in the oil storage room of the boiler room should be equipped with facilities to prevent oil from escaping.

8. A single-story studio with a building area of 550m? The rain fire extinguishing system is fully protected, and the indoor clearance height is 8m. The following statement about rain fire extinguishing system is incorrect ().

A. the water spraying intensity of the system shall not be lower than 12L/(min? m？ ), the studio should be equipped with at least 4 rain alarm valves.

B the water spraying intensity of the system shall not be lower than 16L/(min? m？ ), the studio should be equipped with at least 3 rain alarm valves.

C system water spray intensity is not less than 12L/(min? m？ ), the studio should be equipped with at least 3 rain alarm valves.

D system water spray intensity should not be less than 16L/(min? m？ ), the studio should be equipped with at least 4 rain alarm valves.

9. A building is located in Harbin, with annual ambient temperature below 4℃, maximum indoor clear height of 8m and suspended ceiling. The building is equipped with a closed automatic sprinkler system according to the secondary level of medium risk, and () should be selected.

A. rapid reaction nozzle

B. Hidden sprinkler

C. Dry drooping nozzle

D. Early suppression and rapid reaction nozzle

10. Among the following options, the one that does not belong to the passive measures of building fire prevention is ().

A. Fire prevention spacing of buildings

B. Fire resistance rating of buildings

C. Safe evacuation facilities