City Guilds Model Questions Vol1 2017 Engineering Question 50
Practice objective / multiple choice question 50 from the 2017 City Guilds Model Questions Vol1 Engineering examination.
A pneumatic system delivers air at a mass flow rate of \(2.5\) kg/min. The air temperature is \(25^{\circ}\)C and the absolute pressure is \(150\) kPa. Assuming ideal‑gas behaviour (molar mass \(M=28.97\) g·mol⁻¹, \(R=8.314\) J·mol⁻¹·K⁻¹), calculate: (a) the volumetric flow rate in cubic metres per minute at the given conditions, and (b) the minimum internal diameter of a circular pipe that will keep the air velocity below \(15\) m·s⁻¹. Give the diameter to the nearest millimetre.
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About This Question
This is City Guilds Model Questions Vol1 2017 Engineering Question 50. It is one of the objective questions from the 2017 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Hard .
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