Question

The rate of flow of glycerine of density \(1.25 \times 10^3\) kg m\(^{-3}\) through the conical section of a pipe if the radii of its ends are 0.1 m and 0.04 m and the pressure drop across its length 10 N m\(^{-2}\) is

• A. \(6.93 \times 10^{-4}\) m\(^3\) s\(^{-1}\)
• B. \(7.8 \times 10^{-4}\) m\(^3\) s\(^{-1}\)
• C. \(10.4 \times 10^{-5}\) m\(^3\) s\(^{-1}\)
• D. \(14.5 \times 10^{-5}\) m\(^3\) s\(^{-1}\)

Hint:

Flow rate \(Q = A_1v_1 = A_2v_2\). Bernoulli's equation gives relationship between velocities and pressure drop.

Answer 1

The Correct Option is A