CSCS - Construction Skills Certification Scheme Fire Safety and Emergency Questions and Answers — Questions and Answers
Question 1: For a fire to start and continue to burn, three components are required, often known as the 'fire triangle'. What are these three essential components?
- Spark, Matches, and Lighter
- Wood, Paper, and Diesel
- Oxygen, Heat, and Fuel (Correct answer)
- Water, Foam, and CO2
Correct answer: Oxygen, Heat, and Fuel
The fire triangle illustrates the three fundamental elements needed for combustion: a source of fuel (something to burn), a source of heat (an ignition source), and oxygen (to sustain the reaction). Removing any one of these elements will extinguish a fire.
Question 2: You see flames coming from a temporary electrical distribution board on a construction site. Which type of fire extinguisher is the most appropriate and safest to use?
- Water (Red label)
- CO2 (Black label) (Correct answer)
- Wet Chemical (Yellow label)
- Foam (Cream label)
Correct answer: CO2 (Black label)
CO2 extinguishers are designed for fires involving live electrical equipment as the carbon dioxide is non-conductive and leaves no residue. Using water on an electrical fire is extremely dangerous as it can cause electrocution.
Question 3: Which of the following is a critical legal requirement for fire escape routes on a construction site?
- They only need to be checked for obstructions at the end of the day.
- They can be partially blocked by materials as long as a person can squeeze past.
- They are only required for the main site cabins, not active work areas.
- They must be kept clear of obstructions and be clearly signposted at all times. (Correct answer)
Correct answer: They must be kept clear of obstructions and be clearly signposted at all times.
The Regulatory Reform (Fire Safety) Order 2005 requires that all emergency routes and exits must be kept clear of any obstruction and be clearly marked at all times to allow for swift and safe evacuation.
Question 4: What is a primary responsibility of a designated Fire Warden or Fire Marshal during an active fire alarm and evacuation?
- To immediately run outside and call the fire brigade.
- To attempt to fight the fire, regardless of its size.
- To direct personnel to the assembly point and perform a sweep of their designated area to ensure it is clear. (Correct answer)
- To gather important tools and equipment before leaving the building.
Correct answer: To direct personnel to the assembly point and perform a sweep of their designated area to ensure it is clear.
A key role of a fire warden is to ensure an orderly evacuation by guiding people to safety and checking that their designated area is clear of personnel, if it is safe to do so.
Question 5: Which of the following is the correct practice for storing flammable liquids, such as petrol or solvents, on site?
- In a designated, well-ventilated, and fire-resistant store or cabinet. (Correct answer)
- In the open air to allow any vapours to disperse quickly.
- Alongside compressed gas cylinders to keep all hazardous materials together.
- Inside the site office for better security against theft.
Correct answer: In a designated, well-ventilated, and fire-resistant store or cabinet.
Flammable liquids must be stored in suitable fire-resistant cabinets or dedicated stores that are well-ventilated to prevent the build-up of explosive vapours and protect them from sources of ignition.
Question 6: You are asked to move a large, upright compressed gas cylinder (e.g., oxygen or acetylene) across the site. What is the safest method for transporting it?
- Roll the cylinder on its bottom edge.
- Drag the cylinder by its protective valve cap.
- Carry it horizontally with a co-worker.
- Secure it in an upright position on a purpose-built cylinder trolley. (Correct answer)
Correct answer: Secure it in an upright position on a purpose-built cylinder trolley.
Compressed gas cylinders must be transported in an upright and secured position using a proper cylinder trolley or cage to prevent them from falling and damaging the fragile valve.
CSCS - Construction Skills Certification Scheme Fire Safety and Emergency Questions and Answers
For a fire to start and continue to burn, three components are required, often known as the 'fire triangle'.
What are these three essential components?