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TS EAMCET · Physics · Mechanical Properties of Fluids

A horizontal pipeline carrying gasoline has a cross-sectional diameter of \(5 \mathrm{~mm}\). If the viscosity and density of the gasoline are \(6 \times 10^{-3}\) Poise and \(720 \mathrm{~kg} / \mathrm{m}^3\) respectively, the velocity after which the flow becomes twrbulent is

  1. A \(>1.66 \mathrm{~m} / \mathrm{s}\)
  2. B \(>3.33 \mathrm{~m} / \mathrm{s}\)
  3. C \(>1.6 \times 10^{-3} \mathrm{~m} / \mathrm{s}\)
  4. D \(>0.33 \mathrm{~m} / \mathrm{s}\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(>1.6 \times 10^{-3} \mathrm{~m} / \mathrm{s}\)

Step-by-step Solution

Detailed explanation

Given, Diameter of pipe \((d)=5 \mathrm{~mm}=5 \times 10^{-3} \mathrm{~m}\) Density of gasoline \((\rho)=720 \mathrm{~kg} / \mathrm{m}^3\). Viscocity of gasoline \((\eta)=6 \times 10^{-3}\) Poise We know that,…