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Math Help - Annular Area

  1. #1
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    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
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  2. #2
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    Re: Annular Area

    post geometry problems in the geometry forum, please.
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  3. #3
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    Re: Annular Area

    Quote Originally Posted by Fonzy35 View Post
    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
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