Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN:9781285444543
Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Chapter2: Measurement, Materials, And Safety
Section2.3: Semi-precision Measurement
Problem 4RQ: List the parts of the combination set.
Related questions
Question
The pressure drop in a venturi meter (Fig. P3.128) varies only
with the fluid density, pipe approach velocity, and diameter
ratio of the meter. A model venturi meter tested in water at
20 ° C shows a 5-kPa drop when the approach velocity is 4 m/s.
A geometrically similar prototype meter is used to measure
gasoline at 20 °C and a flow rate of 9 m 3 /min. If the prototype
pressure gage is most accurate at 15 kPa, what should the
upstream pipe diameter be?
Transcribed Image Text:2
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