A fluid with density 0.05 g/cm3 and viscosity Steve Gibbs @The Thermal

Question 17 / 33: A fluid with density 0.05 g/cm3 and viscosity 0.05 cP flows through a 1 inch ID pipe at a flow rate of 1 gpm. Which of the following best describes the type of flow? I. Laminar II. Turbulent III. Transitional

A I only

B II only

C III only

D I and III only

E II and III only

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Explanation:

This is a simple calculation. First, calculate v = 3860 cm3/min x 1 min/60s /(0.5x0.5x2.54x2.54x3.14) = 12.7 cm/s. Re (in cgs units [grams-cms-seconds]) = 0.05 x 12.7 x 2.54/0.05 = 32.26. Because Re << 2150, the flow can be considered laminar.

Quiz Home Page

https://www.jobilize.com/thermal-fluid-systems-mcq-quiz-by-dr-steve-gibbs

Thermal-Fluid Systems ME303

Author:

Dr.Steve GibbsProfessor

The Saylor Foundation

USA

Access: Public Instant Grading

Attribution: Dr. Steve Gibbs. Thermal-Fluid Systems. The Saylor Academy 2014, http://www.saylor.org/courses/me303/

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