Proper Way to thread pipe

[PLUMJOE]

Hello,
Im new to the forums. I just got done taking my tradsmen plumbing test, in texas. I passed everything except threading pipe, I reamed it, threaded the 3/4" pipe and cut it off. The second part of the test, was measuring the offset on 2 pieces of pipe. The center to center was 7". So I multiplied that by 1.414 and subtracted 1.5" to get roughly 8 3/8" piece. I did not pass can someone tell me what i did wrong?

[PLUMBER RICK]

plumjoe, did you do it in under 66 seconds:D


welcome to the forum;)

typically if you don't pass they will tell you what area you missed on.

not sure what they were looking for.

was this a journeyman's or contractors/ masters exam:confused:

rick.

[boillerman]

Welcome to the forum. I'm afraid I don't understand your question though. Our tests are obviously different, but it seems if you're measuring
the offset?, is that what you need to fit between them? It would obviously be less than 7" then, so that can't be what you're looking for.
Someone here will probably know what you're talkin about, keep checkin in.

As for the actual threading, perhaps they're looking at how deep you cut your threads.

[stokefire7]

Looked for a black 45, couldn't find one.

[Masterplumb]

Hello,
Im new to the forums. I just got done taking my tradsmen plumbing test, in texas. I passed everything except threading pipe, I reamed it, threaded the 3/4" pipe and cut it off. The second part of the test, was measuring the offset on 2 pieces of pipe. The center to center was 7". So I multiplied that by 1.414 and subtracted 1.5" to get roughly 8 3/8" piece. I did not pass can someone tell me what i did wrong?


Your measurements seem to be fine. Must be something else that caused you to fail. Didn't you get a report?

[JCsPlumbing]

When I took my test they wouldn't tell you what you missed if you failed. :(

J.C.

[Jay Mpls]

I'm with Master.. The math works out fine unless perhaps they caught something you missed w/ the threads.Were the proctors steers or....:dance:

[Masterplumb]

plumjoe, did you do it in under 66 seconds:D


welcome to the forum

typically if you don't pass they will tell you what area you missed on.

not sure what they were looking for.

was this a journeyman's or contractors/ masters exam:confused:

rick.

Did you ever think of contacting guinness? :help:

[row]

welcome... if your math is good maybe it was your threads... 11 threads?..... 7 in the fitting and 4 exposed? i had to do that in school too and unless your math didnt work out, you didnt ream, or the threads are bad/ too many you didnt pass, but if all that is good i dunno what the prob was.

[NHMaster3015]

If you were doing 45 offsets your math was spot on, so it musta a been something else.

[Bob D.]

If you were doing 45 offsets your math was spot on, so it musta a been something else.

For a 45 offset the math looks good yes, and I would expect that would be the exam question, but he does not say its a 45, that is an assumption we are making.

"The second part of the test, was measuring the offset on 2 pieces of pipe."

[NHMaster3015]

For a 45 offset the math looks good yes, and I would expect that would be the exam question, but he does not say its a 45, that is an assumption we are making.

"The second part of the test, was measuring the offset on 2 pieces of pipe."

He said he was multiplying by 1.414, so he was doing 45 degree offsets

[Bob D.]

He said he was multiplying by 1.414, so he was doing 45 degree offsets

You're right, he did day that.

[PLUMJOE]

Yea, sorry it was 3/4" pipe with 2 45s. i guess they didn't like how i reamed it or something. we get a report but it just tells you you failed that portion of the test but dosnt tell you what part of that portion you failed. thanxs for all the help. :)

[DuckButter]

Yea, sorry it was 3/4" pipe with 2 45s. i guess they didn't like how i reamed it or something. we get a report but it just tells you you failed that portion of the test but dosnt tell you what part of that portion you failed. thanxs for all the help. :)
I like how TX does the test, physically having to show your skills.
Too many are book smart and simply get a license based on their ability to memorize and math skills.
There are too many things you don't find in a code book that truly define our trade.

[Killertoiletspider]

Did you add the thread make up to your travel piece?

If not you fail because it was about an inch too short.

[boillerman]

I like how TX does the test, physically having to show your skills.
Too many are book smart and simply get a license based on their ability to memorize and math skills.
There are too many things you don't find in a code book that truly define our trade.
I like that too. In Mich now it's a copper rig, you build it and it has to
fit in their mold or something. When I took it, it was lead wiping. I failed my first time, but I knew why right away. 1/2 hour in, I redid my wye cause it stuck into the pipe about an 1.8". Let my wiping solder heat the whole time, then instead of waiting for it to cool, I thought I'ld be careful. Burned a hole immediately. Spent the whole day taking a test I knew I'ld failed.:(

[DuckButter]

I like that too. In Mich now it's a copper rig, you build it and it has to
fit in their mold or something. When I took it, it was lead wiping. I failed my first time, but I knew why right away. 1/2 hour in, I redid my wye cause it stuck into the pipe about an 1.8". Let my wiping solder heat the whole time, then instead of waiting for it to cool, I thought I'ld be careful. Burned a hole immediately. Spent the whole day taking a test I knew I'ld failed.:(

I'm sorry, but the mental image of the look on your face that day has a dark humor to it...thats just awful.

[stokefire7]

Hello,
Im new to the forums. I just got done taking my tradsmen plumbing test, in texas. I passed everything except threading pipe, I reamed it, threaded the 3/4" pipe and cut it off. The second part of the test, was measuring the offset on 2 pieces of pipe. The center to center was 7". So I multiplied that by 1.414 and subtracted 1.5" to get roughly 8 3/8" piece. I did not pass can someone tell me what i did wrong?

sounds like some stupid technicality:mad:

[PLUMJOE]

sorry, been awhile guys been busy. TY for all the replies. So without a doubt my math and number of threads are correct on 3/4 black iron pipe with 2 45s?:D