City Guilds Model Questions Vol1 2020 Engineering Question 27
Practice objective / multiple choice question 27 from the 2020 City Guilds Model Questions Vol1 Engineering examination.
Water flows through a horizontal steel pipe that is 200 m long and 0.20 m in diameter. The Darcy friction factor for the pipe is \(f = 0.02\). The volumetric flow rate is \(Q = 0.020\) m³ s⁻¹. The pump efficiency is 65 % and the density of water is \(\rho = 1000\) kg m⁻³.\n\n(a) Calculate the head loss due to friction using the Darcy-Weisbach equation.\n(b) Determine the electrical power that must be supplied to the pump (in kW).\n(c) If the pump operates 8 h per day for a 30‑day month and electricity costs \(\text{₦}15\) per kWh, find the monthly electricity cost.
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About This Question
This is City Guilds Model Questions Vol1 2020 Engineering Question 27. It is one of the objective questions from the 2020 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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