# Annular Area

• Dec 9th 2012, 08:43 AM
Fonzy35
Annular Area
Hi I have a multiple choice question on a math test at work and when I plug the numbers into the formula I am not getting a match with the choices given.

The question is:

What is the annular area in between a 2-3/8 tubing. 6.2lbs/ft, And a 1.25" coiled tubing pipe. 0109 wall thickness?

The Choices are: a) 1.47 in2 b) 3.67 in2 c) 2.19 in2 d) 5.06 cm2
• Dec 9th 2012, 09:52 AM
skeeter
Re: Annular Area
post geometry problems in the geometry forum, please.
• Dec 9th 2012, 10:02 AM
bjhopper
Re: Annular Area
Quote:

Originally Posted by Fonzy35
Hi I have a multiple choice question on a math test at work and when I plug the numbers into the formula I am not getting a match with the choices given.

The question is:

What is the annular area in between a 2-3/8 tubing. 6.2lbs/ft, And a 1.25" coiled tubing pipe. 0109 wall thickness?

The Choices are: a) 1.47 in2 b) 3.67 in2 c) 2.19 in2 d) 5.06 cm2

you must specify material of construction and actual diameter measurement.You cannot use trade sizes unless also specified.For example. A 2" ss tubing has an OD of 2.37" (standard strength) and weighs 3.653 lb per ft. Wall thickness = 0.109 ". Your given weight is probably wrong