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  1. #1
    Join Date
    Aug 2008
    Location
    just outside Ottawa, Ontario, Canada
    Posts
    27
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    Red Seal exam questions

    Hey all. I am a licensed fitter 1 in Ontario with his 313D. It's been a while since I posted on here but I've got a stupid question and I cant remember the answer. I currently have my 313D and am challenging the A in a week. I failed the A with a 69% in 1998 and copped out and got the D instead and have regretted it ever since. Now older and wiser if a little foggier with age I am going to go write again. I took the red seal practice exam online and passed but the two questions I got wrong were both about hole and sleeve sizing through walls " What is the minimum required sleeve diameter when installing a 50 mm (2 in.) nominal pipe with 38 mm (1 1/2 in.) insulation through a 200 mm (8 in.) concrete block exterior wall?" I dont remember the formula or guide lines for this, cant find it in my text book nor online. Can anyone help me give this old brain a shot.

  2. #2
    Join Date
    Aug 2008
    Location
    just outside Ottawa, Ontario, Canada
    Posts
    27
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    Thread Starter
    omg I was way over thinking it nevermind! I can do all the complex calculations to figure out electrical and temperature loads but I get stuck on why a question is wrong on something like this. 1 1/2" insulation is 3" of space added to the pipe....sigh I need more coffee

  3. #3
    Join Date
    Apr 2018
    Posts
    3
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    My hours for 313d has been approved and wants to appear for exam.. can any one give me link to access practice quetions??

  4. #4
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    27,856
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    It's always better to post a new thread instead of adding to an old thread that is two years old.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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