City Guilds Model Questions Vol1 2019 Engineering Question 20
Practice objective / multiple choice question 20 from the 2019 City Guilds Model Questions Vol1 Engineering examination.
Water flows steadily through a horizontal pipe that narrows from a diameter of \(0.30\text{ m}\) to \(0.15\text{ m}\). The upstream pressure is \(250\text{ kPa}\) and the downstream pressure is \(200\text{ kPa}\). The volumetric flow rate is \(0.020\text{ m}^{3}\!\!/\text{s}\). Assuming water density \(\rho = 1000\text{ kg}\!\!/\text{m}^{3}\) and neglecting elevation changes, calculate (a) the head loss due to the contraction (in metres, to two decimal places) and (b) the power that must be supplied by a pump that adds \(30\text{ kPa}\) to the upstream pressure to maintain the flow (in kilowatts, to two decimal places).
Answer Options
About This Question
This is City Guilds Model Questions Vol1 2019 Engineering Question 20. It is one of the objective questions from the 2019 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.