(Solved):   (b) Figure 1 shows a Venturi meter with a U-tube manometer to measure the velocity of oil fl ...

 

(b) Figure 1 shows a Venturi meter with a U-tube manometer to measure the velocity of oil flow. The specific gravity of oil is \( 0.90 \), the specific gravity of the fluid in the manometer is \( 1.40 \). i. What is the pressure difference between points \( A \) and \( B \) ? ii. Calculate the oil velocity in the \( 200 \mathrm{~mm} \)-diameter section. iii. Determine the volumetric flow rate of the oil in \( \mathrm{m}^{3} / \mathrm{s} \). Density of water: \( \rho_{w}=1000 \mathrm{~kg} / \mathrm{m}^{3} \)