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What is the pressure differential causing fuel flow if the venturi depression is found to be 105 cm of water?

(a) 10300.5 Pa

(b) 20300.5 Pa

(c) 50300.5 Pa

(d) 60300.5 Pa

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Right option is (a) 10300.5 Pa

To explain I would say: Pressure differential causing fuel flow = ΔPf, ρ = density of water, h = height of nozzle above the fuel level. ΔPf = g*h*ρ = 9.81*1.05*1000 = 10300.5 kg/m^2.

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