Fire Safety in Specialist Trades Flashcards

What precautions should a plumber take when using a blowtorch in a cupboard or enclosed space?

Answer: Remove all combustibles, use a heat-resistant shield, have a fire extinguisher to hand, and allow 60-minute fire watch after

When using a blowtorch in an enclosed space, all combustibles must be removed or protected with fire-resistant materials. A suitable fire extinguisher must be available. A 60-minute fire watch is required after the work. Consider using push-fit fittings to eliminate the need for heat.

What is the L.A.S.S.O. mnemonic used for on construction sites?

Answer: Location of fire, Alert others, Summon fire service, Safe evacuation, Operations suspended

L.A.S.S.O. provides a fire action sequence: Locate the fire, Alert others nearby, Summon the fire service (call 999), Safely evacuate, Operational fire-fighting only if safe to do so. This ensures life safety is always the priority.

What are the four elements of the fire triangle?

Answer: Fuel, oxygen, heat (plus chain reaction for the fire tetrahedron)

The fire triangle consists of fuel, oxygen, and heat. Removing any one element extinguishes the fire. The expanded fire tetrahedron adds the chain reaction, which is how some suppression agents (halon, dry powder) work by interrupting the chemical chain.

What is a PAT test relevant to in construction fire safety?

Answer: Portable Appliance Testing ensures electrical tools are safe and will not cause a fire from electrical fault

Portable Appliance Testing (PAT) checks that portable electrical equipment is electrically safe. Faulty equipment with damaged insulation or incorrect earthing can cause fires. Regular PAT testing on construction sites is an important fire prevention measure.

What should be included in a fire emergency plan for a specialist contractor?

Answer: Evacuation routes and assembly point, fire alarm procedure, roles and responsibilities, and method of calling the fire service

A fire emergency plan must include: designated evacuation routes and assembly point, how the fire alarm is raised, the method of calling the fire service, named persons responsible for sweep and roll call, and arrangements for people with mobility issues.

What is the minimum requirement for fire detection on a construction site under current guidance?

Answer: An appropriate system of fire detection and alarm appropriate to the site size and risk — from shouting to automatic detection

Current CDM 2015 guidance and fire safety guidance requires an appropriate fire detection and alarm system proportionate to the site's size and risk. Large complex sites require automatic fire detection and audible alarms; smaller sites may rely on a person shouting and a klaxon.