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What is the fire demand for a city having population of 1,40,000 using Buston’s formula?

What is the fire demand for a city having population of 1,40,000 using Buston’s formula? Correct Answer 67000 litre/minute

Concept:

Buston's formula:

According to this formula 

Q = 5663√ P

Where,

Q = Fire demand in liter per minute.

P = Population in thousands.

Calculation:

Given:

P = 140.(as P in thousand)

Q = 5663√140

Q = 67005.5 litre/minute.

67005.5 is nearly equal to 67000.

∴ The fire demand for a city is 67000 liter/minute.

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