第五課
Questions and Answers
- 1.
5.1 下列哪一項是在工作地點發現石油氣罐漏氣時，工友應即時採取的正確處理方法？
- A.
A. 自行盡快修好它
- B.
B. 盡快關上所有使用中的電器
- C.
C. 盡快打開門窗，讓空氣流通
Correct Answer
C. C. 盡快打開門窗，讓空氣流通Explanation
The correct answer is c. 盡快打開門窗，讓空氣流通 (Quickly open doors and windows to allow for ventilation). This is the correct response because when a gas leak is detected in the workplace, it is important to prioritize the safety of everyone present. Opening doors and windows allows fresh air to circulate and helps to dissipate the leaked gas, reducing the risk of an explosion or other hazardous situations. It is crucial to avoid trying to fix the leak oneself or simply turning off electrical appliances, as these actions may not effectively address the immediate danger posed by the gas leak.Rate this question:
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- 2.
5.2 下列哪一類滅火筒，不應用作撲滅易燃液體引起的火警？
- A.
A. 化學粉劑
- B.
B. 水劑
- C.
C. 泡劑
Correct Answer
B. B. 水劑Explanation
Water-based extinguishers are not suitable for extinguishing fires caused by flammable liquids. This is because water can spread the fire and cause the flammable liquid to splash or spread, making the fire worse. Water-based extinguishers are more effective for fires involving solid materials or certain types of gases.Rate this question:
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- 3.
5.3 《工廠及工業經營（危險物質）規例》內，閃點低於攝氏多少度的液體屬易燃物質？
- A.
A. 66度
- B.
B. 68度
- C.
C. 76度
Correct Answer
A. A. 66度Explanation
In the "工廠及工業經營（危險物質）規例" (Factory and Industrial Undertakings (Dangerous Substances) Regulation), liquids with a flash point below 66 degrees Celsius are considered flammable substances. This means that these liquids have a low ignition temperature and can easily catch fire when exposed to a source of ignition. Therefore, option a. 66度 is the correct answer.Rate this question:
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- 4.
5.4 下列哪一項是火警中常見的燃源？
- A.
A. 使用易燃性化學品
- B.
B. 電器失靈或負荷過熱
- C.
C. 使用助燃性化學品
Correct Answer
B. B. 電器失靈或負荷過熱Explanation
The correct answer is b. 電器失靈或負荷過熱. This is because electrical malfunctions or overloading can cause overheating and can potentially lead to a fire. Faulty wiring, damaged electrical cords, or using electrical appliances beyond their recommended capacity can all contribute to electrical failures and fire hazards. It is important to regularly inspect and maintain electrical systems to prevent such incidents.Rate this question:
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- 5.
5.5 《工廠及工業經營（應呈報工場的防火設備）規例》中，所有防煙門應怎樣？
- A.
A. 保持打開
- B.
B. 保持關閉但切勿上鎖
- C.
C. 部分結構是防火玻璃
Correct Answer
B. B. 保持關閉但切勿上鎖Explanation
In the "Regulations on Factories and Industrial Operations (Submission of Fire Protection Equipment for Factories)" all smoke doors should be kept closed but not locked.Rate this question:
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- 6.
5.6 根據《消防（裝置及設備）規例》滅火筒應多久由註冊承辦商檢查一次？
- A.
A. 2年
- B.
B. 1年
- C.
C. 6個月
Correct Answer
B. B. 1年Explanation
According to the Fire Service (Installation and Equipment) Regulations, fire extinguishers should be inspected by a registered contractor once a year.Rate this question:
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- 7.
5.7 為防止火勢及濃煙迅速蔓延，工場之出路門應怎樣？
- A.
A. 保持打開
- B.
B. 裝上捲閘
- C.
C. 裝上自動關閉設備
Correct Answer
C. C. 裝上自動關閉設備Explanation
To prevent the rapid spread of fire and smoke, it is recommended to install automatic closing devices on the exit doors of the factory. This means that in the event of a fire, the doors will automatically close, limiting the spread of flames and smoke to other areas of the building. This can help to contain the fire and provide more time for people to evacuate safely.Rate this question:
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- 8.
5.8 在火警發生時，下列哪一項出路門的措施可使工場內工人迅速地逃往安全地方？
- A.
A. 工場出路門須向外開出
- B.
B. 工場出路門應上鎖
- C.
C. 工場出路門須向內開入
Correct Answer
A. A. 工場出路門須向外開出Explanation
When a fire occurs, it is important for the factory exit doors to open outward. This allows the workers inside the factory to quickly escape to a safe place. If the doors open inward, they may be blocked by the pressure from the crowd trying to exit, making it difficult for people to escape. Therefore, having the factory exit doors open outward is the most effective measure to ensure a swift evacuation during a fire emergency.Rate this question:
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- 9.
5.9 熱力的傳播方法有傳導、對流及下列哪一項？
- A.
A. 分子分解
- B.
B. 光波傳送
- C.
C. 輻射
Correct Answer
C. C. 輻射Explanation
The correct answer is c. 輻射 (radiation). In addition to conduction and convection, radiation is another method of heat transfer. Radiation is the transfer of heat through electromagnetic waves, such as infrared radiation. Unlike conduction and convection, radiation does not require a medium to transfer heat and can occur even in a vacuum.Rate this question:
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- 10.
5.10 一支常用的水劑滅火筒的容量是多少？
- A.
A. 15公升
- B.
B. 9公升
- C.
C. 5公升
Correct Answer
B. B. 9公升Explanation
The correct answer is b. 9公升. This is the correct answer because it states that the capacity of a commonly used fire extinguisher is 9 liters.Rate this question:
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- 11.
5.11 一般泡沫劑滅火筒的射程距離可至多遠？
- A.
A. 2米
- B.
B. 4米
- C.
C. 6米
Correct Answer
B. B. 4米Explanation
The correct answer is b. 4米. The range of a general foam fire extinguisher can reach up to a maximum distance of 4 meters. This means that the foam can be sprayed at a distance of up to 4 meters from the extinguisher, allowing for effective firefighting and extinguishing of fires within that range.Rate this question:
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- 12.
5.12 使用水劑滅火筒時，應射向火源哪位置才有效將火撲滅？
- A.
A. 火源頂部
- B.
B. 火源中間
- C.
C. 火源底部
Correct Answer
C. C. 火源底部Explanation
When using a water extinguisher to put out a fire, it is most effective to aim at the bottom of the fire source. This is because water is heavier than fire and will sink to the bottom, cooling and extinguishing the flames from the base. Aiming at the top or middle of the fire may not effectively reach the source of the fire and may not extinguish it completely. By aiming at the bottom, the water can quickly suppress the fire and prevent it from spreading further.Rate this question:
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- 13.
5.13 下列哪一項措施，是最有效幫助員工學習正確使用滅火設備的方法？
- A.
A. 滅火設備上加上使用指示標貼
- B.
B. 播放有關的職安影帶，幫助員工了解使用方法
- C.
C. 滅火設備上加上使用指示標貼，及為員工安排滅火設備的實習
Correct Answer
C. C. 滅火設備上加上使用指示標貼，及為員工安排滅火設備的實習Explanation
Adding usage instructions on fire extinguishing equipment and arranging practical training for employees on how to use the equipment is the most effective measure to help employees learn the correct use of fire extinguishing equipment. This combination of visual cues and hands-on experience ensures that employees have clear instructions and practical knowledge on how to operate the equipment correctly in case of a fire emergency.Rate this question:
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- 14.
5.14 工場內使用易燃物料時，應怎樣處理？
- A.
A. 禁止僱用有吸煙習慣的工友
- B.
B. 關閉所有門窗
- C.
C. 嚴禁吸煙和控制其他火種
Correct Answer
C. C. 嚴禁吸煙和控制其他火種Explanation
When using flammable materials in a factory, it is important to strictly prohibit smoking and control any other potential sources of fire. This is necessary to prevent accidents and ensure the safety of the workers and the facility. Smoking can easily ignite flammable materials, and other sources of fire can also pose a significant risk. Therefore, it is crucial to enforce strict regulations and measures to prevent any potential ignition sources and minimize the risk of fire in the workplace.Rate this question:
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- 15.
5.15 為何在易燃液體儲存或使用區域要有良好的空氣流通？
- A.
A. 冷卻易燃液體，減低其蒸發速度
- B.
B. 防止易燃氣體積聚而發生爆炸或火警
- C.
C. 保持易燃液體之品質
Correct Answer
B. B. 防止易燃氣體積聚而發生爆炸或火警Explanation
In areas where flammable liquids are stored or used, it is important to have good air circulation to prevent the accumulation of flammable gases, which can lead to explosions or fires. Adequate airflow helps to disperse any flammable vapors that may be present, reducing the risk of ignition and ensuring the safety of the area.Rate this question:
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- 16.
5.16 工場內的所有走火通道，都要裝置甚麼？
- A.
A. 適當滅火筒
- B.
B. 防火標語及海報
- C.
C. 出口指示燈及緊急照明
Correct Answer
C. C. 出口指示燈及緊急照明Explanation
In factories, it is necessary to have exit signs and emergency lighting in all fire escape routes. This is important to ensure the safety of employees and facilitate their evacuation in case of a fire or emergency. Exit signs help to clearly indicate the way to the nearest exit, while emergency lighting ensures that the escape routes are well-lit even in the event of a power failure. These measures help to prevent panic and confusion during an emergency and enable a swift and orderly evacuation.Rate this question:
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- 17.
5.17 帶電的電器發生火警時，應用下列哪一種滅火器具？
- A.
A. 二氧化碳滅火筒
- B.
B. 消防喉轆
- C.
C. 泡劑滅火筒
Correct Answer
A. A. 二氧化碳滅火筒Explanation
When an electric appliance catches fire, it is important to use a fire extinguisher that is safe to use on electrical fires. The best option in this case is a carbon dioxide (CO2) fire extinguisher. CO2 extinguishers work by displacing oxygen, effectively smothering the fire without conducting electricity. This makes them suitable for use on electrical fires, as they do not pose a risk of electric shock. Therefore, option a, the carbon dioxide fire extinguisher, is the correct choice in this scenario.Rate this question:
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- 18.
5.18 下列哪一項是走火通道必須維持的？
- A.
A. 裝置閉路電視及煙霧感應器
- B.
B. 保持通道暢通，切勿阻塞
- C.
C. 祇准擺放不易燃物料
Correct Answer
B. B. 保持通道暢通，切勿阻塞Explanation
The correct answer is b. 保持通道暢通，切勿阻塞 (Keep the passage clear and unobstructed). This means that it is necessary to maintain a clear pathway for emergency evacuation in case of a fire. Blocking or obstructing the pathway can hinder the escape of people and can lead to dangerous situations. Therefore, it is important to ensure that the passage remains unobstructed at all times to ensure the safety of individuals in case of a fire.Rate this question:
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- 19.
5.19 在狹窄及空氣不流通的地方，使用二氧化碳滅火筒，可能構成下列哪一種危險？
- A.
A. 缺氧
- B.
B. 爆炸
- C.
C. 中毒
Correct Answer
A. A. 缺氧Explanation
在狹窄及空氣不流通的地方使用二氧化碳滅火筒可能會構成缺氧的危險。二氧化碳是一種滅火劑，使用時會將周圍的氧氣排除，這可能導致人們在這種環境中缺乏足夠的氧氣供應，從而引起缺氧的情況。因此，在使用二氧化碳滅火筒時應該特別注意環境的通風情況，以確保人們不會因為缺氧而受到傷害。Rate this question:
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- 20.
5.20 火警發生時，令人致命的主要原因是？
- A.
A. 窒息
- B.
B. 燒傷
- C.
C. 灼傷
Correct Answer
A. A. 窒息Explanation
The correct answer is a. 窒息. When a fire occurs, the main cause of fatality is often due to suffocation caused by the smoke and toxic gases produced. Inhaling these substances can lead to a lack of oxygen in the body, resulting in difficulty breathing and ultimately, suffocation. This is why it is crucial to have proper fire safety measures in place, such as smoke alarms and evacuation plans, to prevent the risk of suffocation during a fire emergency.Rate this question:
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- 21.
5.21 火警發生時，使用滅火筒應站在下列哪位置？
- A.
A. 任何位置
- B.
B. 下風位
- C.
C. 上風位
Correct Answer
C. C. 上風位Explanation
When a fire occurs, standing in the upwind position is the correct location to use a fire extinguisher. This position allows the user to approach the fire from a safe direction, as the wind will blow the smoke and flames away from them. Standing in the downwind position would expose the user to the smoke and heat, making it more difficult to effectively extinguish the fire. Therefore, the correct answer is c. 上風位 (upwind position).Rate this question:
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- 22.
5.22 用木製造之防煙門，其整體實心的厚度不得少於多少毫米？
- A.
A. 44毫米
- B.
B. 34毫米
- C.
C. 24毫米
Correct Answer
A. A. 44毫米Explanation
The correct answer is a. 44毫米. According to the question, the solid thickness of a wooden smoke door must be at least 44毫米.Rate this question:
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- 23.
5.23 火警發生時，下列哪一項是正確的緊急應變措施？
- A.
A. 應拿滅火筒奮不顧身去撲滅猛烈的火勢
- B.
B. 大叫救命，收拾重要物件後立刻逃生
- C.
C. 發出警報，在安全情況下試圖撲救及盡快疏散逃生
Correct Answer
C. C. 發出警報，在安全情況下試圖撲救及盡快疏散逃生Explanation
The correct answer is c. This option states that in the event of a fire, the correct emergency response measures are to sound the alarm, attempt to extinguish the fire if it is safe to do so, and evacuate as quickly as possible. This approach prioritizes the safety of individuals by alerting others to the fire, taking action to control the fire if possible, and ensuring a swift evacuation to minimize harm.Rate this question:
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- 24.
5.24 下列哪一種固體物品起火是水劑滅火筒不能撲救的？
- A.
A. 木材
- B.
B. 紙張
- C.
C. 金屬鈉
Correct Answer
C. C. 金屬鈉Explanation
金屬鈉在與水接觸時會產生劇烈的化學反應，釋放出氫氣，並且產生高溫火焰。水劑滅火筒無法撲滅金屬鈉的火焰，因為水會加劇這種反應，使火勢更加猛烈。因此，金屬鈉起火時需要使用其他滅火劑，如二氧化碳滅火筒或乾粉滅火器。Rate this question:
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- 25.
5.25 《工廠及工業經營（應呈報工場的防火設備）規例》是由下列哪一個政府部門執行？
- A.
A. 消防處
- B.
B. 機電工程署
- C.
C. 勞工處
Correct Answer
C. C. 勞工處Explanation
The correct answer is c. 勞工處 (Labour Department). This department is responsible for enforcing the "Regulations for Factories and Industrial Undertakings (Submission of Fire Services Installations of Factories) Regulation". They oversee the safety and welfare of workers in factories and industrial establishments, including ensuring compliance with fire safety regulations.Rate this question:
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- 26.
5.26 消防喉轆是樓宇常見的防火裝置之一，喉轆的水喉一般長度為多少？
- A.
A. 10米
- B.
B. 30米
- C.
C. 50米
Correct Answer
B. B. 30米Explanation
The correct answer is b. 30米. The question is asking about the typical length of the water hose in a fire hose reel, which is a common fire protection device in buildings.Rate this question:
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- 27.
5.27 手控火警鐘系統，其功能除啟動後能通知樓宇內其他人士知悉火警發生外，還有下列哪一項作用？
- A.
A. 開動緊急照明裝置
- B.
B. 開動火警偵測器
- C.
C. 開動消防泵來加壓供水
Correct Answer
C. C. 開動消防泵來加壓供水Explanation
The correct answer is c. 開動消防泵來加壓供水. The hand-controlled fire alarm bell system not only notifies others in the building of the fire alarm, but it also activates the fire pump to increase water pressure for firefighting purposes. This is an important function as it ensures that there is enough water pressure to effectively combat the fire and minimize its spread.Rate this question:
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- 28.
5.28 火警偵測器主要可分多少種類？
- A.
A. 1類
- B.
B. 2類
- C.
C. 3類
Correct Answer
C. C. 3類Explanation
火警偵測器主要可分為三種類型。Rate this question:
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- 29.
5.29 下列哪一種滅火劑的應用不屬於窒息法？
- A.
A. 二氧化碳
- B.
B. 化學泡劑
- C.
C. 水劑
Correct Answer
C. C. 水劑Explanation
水劑是一種常見的滅火劑，但它的應用不屬於窒息法。窒息法是通過排除氧氣來撲滅火災，而水劑主要是通過冷卻和隔離火源來達到滅火的效果。因此，水劑的應用不符合窒息法的原則。二氧化碳和化學泡劑則可以通過排除氧氣來窒息火災，因此它們的應用屬於窒息法。Rate this question:
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- 30.
5.30 紅色消防花灑頭的操作溫度為攝氏多少度？
- A.
A. 78
- B.
B. 68
- C.
C. 66
Correct Answer
B. B. 68Explanation
The correct answer is b. 68. This suggests that the operating temperature of the red fire sprinkler head is 68 degrees Celsius.Rate this question:
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- 31.
5.31 在濃煙中逃生，若沒有防煙面罩，應以濕毛巾掩口鼻及做甚麼以避免吸入致命濃煙？
- A.
A. 設法蹲低或貼近地面爬行
- B.
B. 緩步跑離開濃煙範圍
- C.
C. 站立或步行前進
Correct Answer
A. A. 設法蹲低或貼近地面爬行Explanation
In a situation where there is thick smoke and no smoke mask available, the correct action to avoid inhaling deadly smoke is to crouch low or crawl close to the ground. This is because smoke rises and the lower levels of the room or area will have less smoke and better air quality. By staying low, one can minimize the risk of inhaling toxic smoke and increase the chances of safely escaping the smoke-filled environment.Rate this question:
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- 32.
5.32 根據消防處《各種滅火筒之適當用途及保養方法》通告，滅火氈共分為哪兩類？
- A.
A. 重型及輕型滅火氈
- B.
B. 工業型及家庭型滅火氈
- C.
C. 大型及小型滅火氈
Correct Answer
A. A. 重型及輕型滅火氈Explanation
According to the "Proper Use and Maintenance Methods of Various Fire Extinguishers" notice from the Fire Services Department, fire blankets are classified into two categories: heavy-duty and lightweight fire blankets.Rate this question:
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- 33.
5.33 法例規定如果沒有向有關當局申請牌照，商戶不可儲存石油氣瓶超過多少容量？
- A.
A. 100公升
- B.
B. 130公升
- C.
C. 160公升
Correct Answer
B. B. 130公升Explanation
According to the given information, the question asks about the maximum capacity of LPG cylinders that a business is allowed to store without obtaining a license. The correct answer is b. 130公升, which means that if a business stores LPG cylinders exceeding 130 liters in capacity without obtaining a license, it would be in violation of the law.Rate this question:
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- 34.
5.34 滅火有3種基本的方法，包括冷卻法、窒息法和下列哪一項？
- A.
A. 隔離法
- B.
B. 沖擊法
- C.
C. 吹風法
Correct Answer
A. A. 隔離法Explanation
The correct answer is a. 隔離法. The question asks for the third basic method of fire extinguishment, which includes cooling method, suffocation method, and another method. The options provided are 隔離法 (isolation method), 沖擊法 (impact method), and 吹風法 (blow-drying method). Among these options, only 隔離法 (isolation method) is a valid method of fire extinguishment.Rate this question:
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- 35.
5.35 根據《危險品（一般）規例》，危險品的標籤大小不得少於多少？
- A.
A. 100毫米 x 100毫米
- B.
B. 150毫米 x 100毫米
- C.
C. 200毫米 x 150毫米
Correct Answer
A. A. 100毫米 x 100毫米Explanation
According to the Dangerous Goods (General) Regulations, the size of the label for dangerous goods must be at least 100 millimeters by 100 millimeters.Rate this question:
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- 36.
5.36 如果不幸被困於火場，下列哪一項是正確的處理方法？
- A.
A. 乘搭升降機逃生
- B.
B. 將門關上，用毛氈將門底的空隙塞住，立即致電999及走向近街的窗前呼救
- C.
C. 躲藏在衣櫃內，等候救援
Correct Answer
B. B. 將門關上，用毛氈將門底的空隙塞住，立即致電999及走向近街的窗前呼救Explanation
The correct answer is b. This is the correct response because in the event of being trapped in a fire, it is important to close the door to prevent the fire from spreading into the room. By using a towel or cloth to block the gap at the bottom of the door, it helps to prevent smoke from entering the room. Calling emergency services (999) immediately is crucial for getting help as soon as possible. Lastly, moving towards a window facing the street and calling for help increases the chances of being noticed and rescued.Rate this question:
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- 37.
5.37 根據消防處的標準，防火氈的尺碼不能少於多少？
- A.
A. 800 x 800毫米
- B.
B. 1000 x 1000毫米
- C.
C. 1200 x 1200毫米
Correct Answer
C. C. 1200 x 1200毫米Explanation
According to the fire department's standards, the minimum size for a fire blanket should be 1200 x 1200 millimeters.Rate this question:
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- 38.
5.38 根據消防處的標準，消防喉轆之射水距離應不少於多少米？
- A.
A. 3
- B.
B. 6
- C.
C. 9
Correct Answer
B. B. 6Explanation
According to the standards of the fire department, the minimum shooting distance for a fire hose reel should be 6 meters.Rate this question:
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- 39.
5.39 根據消防處的標準，下列那一項不是「EXIT出口」顯示牌上半透明背景與字體的顏色配搭？
- A.
A. 白底綠字
- B.
B. 紅底白字
- C.
C. 綠底黑字
Correct Answer
B. B. 紅底白字Explanation
According to the standards of the fire department, the color combination for the "EXIT出口" sign should have a semi-transparent background and font color. The correct color combination for the sign is a white background with green font (option a) or a green background with black font (option c). However, the color combination of a red background with white font (option b) does not meet the standards for the "EXIT出口" sign.Rate this question:
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- 40.
5.40 根據消防處發出的「裝置及設備之檢查、測試及保養守則」，聲響警報系統須由註冊消防裝置承辦商，最少每隔多久檢查一次？
- A.
A. 6個月
- B.
B. 12個月
- C.
C. 24個月
Correct Answer
B. B. 12個月Explanation
According to the "Guidelines for Inspection, Testing, and Maintenance of Devices and Equipment" issued by the Fire Services Department, the audible alarm system must be inspected by a registered fire service contractor at least once every 12 months.Rate this question:
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- 41.
5.41 根據《工廠及工業經營（應呈報工場的防火設備）規例》，工場內的易燃物品總貯存量不應超逾多少公升，否則需向消防處提出申請？
- A.
A. 20
- B.
B. 35
- C.
C. 50
Correct Answer
B. B. 35Explanation
According to the "Factory and Industrial Undertaking (Fire Precautions) Regulations", if the total storage capacity of flammable substances in a factory exceeds 35 liters, an application must be submitted to the Fire Services Department.Rate this question:
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- 42.
5.42 根據勞工處的「小心使用易燃物料」，防止火警發生的基本安全措施，不包括下列哪一項？
- A.
A. 保持工作地點整齊清潔
- B.
B. 提供良好通風設備
- C.
C. 設置足夠的水劑滅火器
Correct Answer
C. C. 設置足夠的水劑滅火器Explanation
The correct answer is c. 設置足夠的水劑滅火器. This means that providing sufficient water-based fire extinguishers is not included as a basic safety measure to prevent fires, according to the guidelines of the Labour Department. The other options, maintaining a clean workplace and providing good ventilation, are mentioned as basic safety measures to prevent fires.Rate this question:
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- 43.
5.43 二氧化碳滅火筒之重量與當出廠供使用時所刻於筒身上之重量作比較，若發覺損耗超過百分之幾，便應將筒內之氣體放射釋出及將筒交回供應商？
- A.
A. 5
- B.
B. 10
- C.
C. 20
Correct Answer
B. B. 10Explanation
The correct answer is b. 10. This is because the statement mentions that if the weight of the carbon dioxide fire extinguisher is found to have a loss of more than a certain percentage compared to the weight marked on the cylinder when it was supplied, the gas inside the cylinder should be released and the cylinder should be returned to the supplier. The question asks for the percentage of loss that triggers this action, and the correct answer is 10%.Rate this question:
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- 44.
5.44 下列哪種滅火氈方可被接納為消防處要求的設備？
- A.
A. 「輕型」滅火氈
- B.
B. 「輕型」及可供重複使用的滅火氈
- C.
C. 「重型」及可供重複使用的滅火氈
Correct Answer
C. C. 「重型」及可供重複使用的滅火氈Explanation
The correct answer is c. "重型"及可供重複使用的滅火氈 (Heavy-duty and reusable fire blanket). This answer is accepted by the fire department as it meets their requirements for firefighting equipment. "重型" (Heavy-duty) indicates that the fire blanket is made of durable and flame-resistant material, capable of withstanding intense heat and flames. "可供重複使用的" (Reusable) means that the fire blanket can be used multiple times, making it a cost-effective option for firefighting purposes.Rate this question:
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- 45.
5.45 根據消防處規定，食肆面積超過230平方米的處所或位於地庫，而面積超過多少平方米的處所，須設有滅火花灑系統？
- A.
A. 165
- B.
B. 144
- C.
C. 126
Correct Answer
C. C. 126Explanation
According to the regulations of the Fire Services Department, premises with an area exceeding 230 square meters or located in a basement must have a fire sprinkler system. Therefore, premises with an area exceeding 126 square meters must also have a fire sprinkler system.Rate this question:
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- 46.
5.46 當木料、橡膠或紙張?火燃燒，下列哪一種滅火筒是不適合用來灌救此類火警？
- A.
A. 二氧化碳滅火筒
- B.
B. 泡劑滅火筒
- C.
C. 水劑滅火筒
Correct Answer
A. A. 二氧化碳滅火筒Explanation
When wood, rubber, or paper is on fire, using a carbon dioxide fire extinguisher is not suitable because carbon dioxide extinguishers work by displacing oxygen, which is necessary for combustion. However, wood, rubber, and paper can burn without the presence of oxygen, so using a carbon dioxide extinguisher would not be effective in extinguishing the fire. Foam or water-based fire extinguishers would be more appropriate for this type of fire.Rate this question:
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- 47.
5.47 下列哪一類不屬於一般火警偵測器的類別？
- A.
A. 熱能式偵測器
- B.
B. 煙霧式偵測器
- C.
C. 觸覺式偵測器
Correct Answer
C. C. 觸覺式偵測器Explanation
The correct answer is c. 觸覺式偵測器 (touch-based detector). This option does not belong to the general category of fire detectors. The other two options, a. 熱能式偵測器 (thermal detector) and b. 煙霧式偵測器 (smoke detector), are commonly used types of fire detectors.Rate this question:
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- 48.
5.48 設有火警警報系統的工作地點，而又沒有公眾人士在內停留，每年至少應舉行多少次火警演習？
- A.
A. 1次
- B.
B. 2次
- C.
C. 3次
Correct Answer
A. A. 1次Explanation
Fire drills should be conducted at least once a year in a workplace with a fire alarm system but no members of the public present. This ensures that employees are familiar with the emergency procedures and can evacuate safely in the event of a real fire. Conducting regular fire drills helps to reinforce the importance of fire safety and allows for any necessary adjustments or improvements to be made to the emergency response plan.Rate this question:
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- 49.
5.49 走火通道門閘上的電鎖裝置，怎樣才符合消防處的要求？
- A.
A. 電鎖隨時可以在無須使用鑰匙的情況下，從內開啟
- B.
B. 在電力故障時，裝置會自動解鎖
- C.
C. 以上兩者皆是
Correct Answer
C. C. 以上兩者皆是Explanation
The correct answer is c. Both a and b are required to meet the requirements of the fire department. This means that the electric lock on the fire passage gate must be able to be opened from the inside without the need for a key at any time, and it must also automatically unlock in the event of a power failure.Rate this question:
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- 50.
5.50 根據屋宇署的《提供火警逃生途徑守則》，如非公眾娛樂場所房間的可容納人數為31-200人，該房間的出口數目應不少於多少個？
- A.
A. 2個
- B.
B. 3個
- C.
C. 4個
Correct Answer
A. A. 2個Explanation
According to the guidelines provided by the Buildings Department, if the capacity of a room in a non-public entertainment venue is between 31-200 people, the number of exits should be at least 2.Rate this question:
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Mar 22, 2023Quiz Edited by
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Oct 24, 2018Quiz Created by
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