GATE 2025 AR — Planning – Question 45
A 12×8 m room, 4 m high, contains 80 m³ combustible material of density 3 kg/m³ and calorific value 4000 kcal/kg. Find floor-area fire load in kcal/m², as an integer.
Practise this question in The GATE Grind →
Show answer and explanation
Correct answer: 10000 to 10000
Explanation
Combustible mass is 80×3=240 kg and total heat potential 240×4000=960000 kcal. Floor area is 12×8=96 m². Fire load is 960000/96=10000 kcal/m². The room’s 4 m height is not part of the area denominator.