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QUESTIONS ANSWERED CORRECTLY ENGR403 FIRE ENGINEERING EXAM ANTHONY ABU NOTES

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QUESTIONS ANSWERED CORRECTLY ENGR403 FIRE ENGINEERING EXAM ANTHONY ABU NOTES

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QUESTIONS ANSWERED CORRECTLY
ENGR403 FIRE ENGINEERING EXAM ANTHONY
ABU NOTES


◉Objective of fire safety system . Answer: Reduce the consequence of
fire.


◉How can we discover a fire? . Answer: Smoke, heat, light (fastest
way), sound


◉Premix flame . Answer: Blueish colour no soot. Fuel and air mix
before combustion


◉Diffusion flame . Answer: air mixes with fuel outside, real-life fire


◉What gas do we detect for? . Answer: Carbon monoxide.


◉Types of fire detectors . Answer: Flame detectors (radiation), gas
detectors (gases), smoke detectors (aerosols), thermal detectors (heat),
aspirating detectors (aerosols).

, ◉Types of smoke detectors . Answer: ionisation chamber smoke
detector, photoelectric smoke detector, linear beam detector.


◉Types of thermal detectors . Answer: Fixed alarm threshold (activation
at T), Rate of rise (activation at DT), combined fixed and RoR.


◉What is needed for a fire to burn . Answer: Oxygen, heat, fuel.


◉Class A fire . Answer: Ordinary combustible


◉Class B fire . Answer: Flammable liquids


◉Class C fire . Answer: Flammable Gases


◉Class D fire . Answer: Flammable metals


◉Class E fire . Answer: Energised electrical equipment


◉Class F fire . Answer: Cooking fat fires


◉Most common fire suppression agents . Answer: Water, foam, gases,
powder.

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