Multiple choice

A sugar syrup (density = 1040 kg/m3 and viscosity = 1600 $\times$ 10–6 Pa.s) is required to be pumped into a tank (1.5 m diameter and 3 m height) by a 3 cm inside diameter pipe. If the liquid is required to flow under laminar conditions, the minimum time to fill the tank with the syrup will be

  1. 192.9 h

  2. 19.3 h

  3. 38.6 h

  4. 57.9 h
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This requires calculating flow rate for laminar conditions (Reynolds number < 2100). Given the complexity and missing parameters for pressure drop, this is a standard engineering problem where the answer is derived from volume/flow rate.

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