Testing! Practice Questions for \"Fire Safety Technology Practice\" for First-Class Registered Fire Engineers

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Multiple-choice question (Among the options for each question, only 1 option best fits the requirements). 1. In case a LPG filling station uses buried storage tanks, the fire-fighting water demand for the fire hydrants at such stations should not be less than ( ). A.10L/s B.15L/s C.20L/s D.30L/s 2. Non-operational accidents at gas stations can be divided into fires related to fuel and fires that are not related to fuel. Which of the following is not a fire involving non-oil products? ( ) A. Electrical fires B. Improper management of open flames C. Spreading of fires outside the station affecting the station interior D. Leaks from oil tanks and pipelines 3. Connection passages are installed between two tunnels in a circular tunnel; the appropriate spacing between such connection passages is generally ( ). A. 300–500m B. 400–800m C. 250–300m D. 300–600m 4. Stations that combine fuel filling and LPG refueling are classified into ( ) categories based on the volume of the gasoline/diesel storage tanks and the LPG storage tanks. A. Two B. Three C. Four D. Five 5. The underground equipment rooms located within urban traffic tunnels occupy a large area but have few people present; the maximum allowable floor area for each fire compartment should not exceed ( ). A. 600m2 B. 900m2 C. 100m2 D. 1500m2 Multiple-choice question (for each question, 2 or more of the options meet the requirements.) Wrong choice: no points for this question; incomplete choice: 0.5 points for each selected option. 1. A office building with 33 floors above ground and 4 floors below ground. The basement level serves as a car park, with a construction area of 3,840 m2. The building is equipped with an automatic fire alarm system and a sprinkler fire extinguishing system, features scissor stairwells, and has mechanical pressurized ventilation equipment. Therefore, when designing a mechanical smoke exhaust system for the basement floor, factors such as ( ) need to be taken into consideration. A. Division of smoke prevention zones B. Location of mechanical exhaust outlets in the smoke exhaust ducts C. Whether an air supply system is required D. The exhaust capacity of the smoke exhaust fans should be determined based on a ventilation rate of not less than 6 times per hour E. Smoke exhaust methods 2. Which of the following automatic sprinkler systems necessarily require inflation equipment? ( ) A. Wet system B. Dry system. C. Pre-action system D. Deluge system E. Water curtain system Reference answers and explanations Multiple-choice questions 1.B For gas stations that use buried storage tanks for liquefied petroleum gas, the fire-fighting water flow rate at the primary stations should be no less than 15 L/s; at the secondary and tertiary stations, it should be no less than 10 L/s. When LPG cylinders are installed above ground, the fire-fighting water flow rate from the fire hydrants should be no less than 20 L/s, and the continuous supply time should be no less than 3 hours. 2. Options A, B, and C relate to fires that are not caused by oils; option D relates to fires associated with oils. 3.B A connecting passage is installed between the two tunnels of the circular tunnel. The spacing between connection channels should generally be 400–800 m. 4. Stations that provide both gasoline refueling and LPG filling are classified into 3 grades based on the volume of the gasoline and diesel storage tanks as well as the LPG storage tanks. 5.D The underground equipment rooms located within urban traffic tunnels occupy a large area and have few people present; the maximum allowable floor area for each fire compartment should not exceed 1500 m2. Multiple-choice question 1. ABCD. This question primarily examines the factors that should be taken into account when installing a mechanical smoke exhaust system. When designing the mechanical smoke exhaust system on the basement level, consideration should be given to the division of smoke control zones, the location of the smoke exhaust ducts and outlets, whether an air supply system is necessary, and the smoke exhaust capacity of the exhaust fans should be determined based on a ventilation rate of not less than 6 times per hour. Therefore, the answer to this question is ABCD. 2. In BC automatic sprinkler systems, inflatable devices are required in dry systems and pre-action systems.