I've had a quick go at your problem Mooney and I get a similar answer but out by one order of magnitude (what's that between friends!).

This could be because I'm completely wrong, or because we agree and one of us has just misplaced a decimal point by one.

It's a long time since I've done these and had to resort to Wikipedia to get me going, so no promises that I'm correct, but hopefully a look at how I did it may be helpful.

I started with the change of width formula here:

Poissons Ratio Width Change Forrmula

Rearranging that allows calculation of change in length (Delta L). With Delta L we can calc Strain, which gives Stress, which finally gives Force.

I get F = 2.09MN

My full working is here:

Working pdf

Hope that helps.

PS, my apologies to Gus: I'm mechanical, not electrical, and not the best person to help with the AC voltage problem. Fingers crossed someone else will be along before long.

Edited: 05 January 2012 at 12:57 AM by Gruff

Cheers Gruff for taking the time out to work it all out too.

I've used similar methods to yourself and also referred to Wikipedia for formulas etc.....

Thanks again! Time to tackle question number 2 now which looks like a testing one!

HI
can some one help me pls in my first TMA ENGINEERING SCIENCE am facing difficulty in q2&q3


yousuf

Has anyone done Electrical Services Module as I am currently on this? Finished Safety engineering module.
arussell1973@aol.com

Hi all, new to the forum. I'm also currently studying this HNC. I've succesfuly completed analytical methods and Engineering science. I've nearly completed Mechanical Principles, but getting very stuck with the last TMA. Any help from anyone would be much appreciated. Also if anyone else wants any help with the first 2 modules, let me know.

Hi there, i am currently struggling with the 1st TMA for Mech Principles if you could help me out please?

Done the 1st question and im a little unsure if im heading in the right direction for the 2nd question.

Please PM me on here for my e-mail address.

Thanks!

Hi All,

I have recently started the HNC electrical through distance learning, and struggling to get to grips with the TMA 1 of Engineering Science, is there anyone who can give me some advise?

Thanks

Hi dan,

Im working through the HNC and im struggling on the engineering science TMA have you got any ideas that could help?

Hi Mooneymagic,

Im working through my HNC in engineering science but really struggling with the TMA 1 can anyone help with the bending moment?

Hi guys,
I've created facebook group if you are interested? It's for HNC Electronics Engineering students with TUOLE (COLU).

http://www.facebook.com/groups/234034030031019/

Hi there,

I have just got to my first TMA in the engineering science. I am also struggling to get my head round the questions. How did you find it. do you have any advice where to find information on these questions

Many thanks

Jon

Hi
I'm at the begining of engineering science and was winding if anyone would like to share notes or offer any assistance, that
Would b greatly appreciated

Thanks

Hi all, im new here!! so hello!! I am really stuck on Mech principles TMA1 Qn 2, Qn 1 I found quite simple can anybody help me with this? I have already completed AME ENS and BMA (I think they are the correct acronyms for them)

thanks x x

Hey I am really stuck on Mech principles TMA1 Qn 2, How did you tackle it?

thanks x x

Hi all, any one completed Mechanical Principles? i'm stuck on TMA 4. I've completed AME and ENS, so anyone needing help and willing to give me a hand let me know. cheers.

Hello,

I am new to the forum and have a few questions.
I have just finished year 1 of a HNC in Manufacturing engineering and am planning to transfer to the HNC Mechanical at COLU in the next 2 weeks. I understand I can use my completed units in Analytical Methods & Eng Science so that means I have 6 units left to complete.
I just wanted to know how long each unit takes roughly, as I am planning on changing career and just wanted to see how long it was taking everyone else to complete their units. Thanks in advance and look forward to using this forum to exchange ideas soon!

Cheers.

hi everyone..

just joined this forum for some help off people that are doing the hnc electrical/electronic engineering.. had my engineering science about a week now and just got to lesson 4 theory of bending and it has brought me to a brick wall lol... am not understanding where its getting these X10-12 or X10 power 9 or X10-3 know its coming from newtons theory but some equation it just seems to be chucked it with no explanation to why its there.....

Hello mattyh3

I have an Engineering Science pdf that explains bending moments I can email it to you if you like - sent my application away last Wednesday for HNC Mech engineering so just waiting to hear back.
My email is (pmoran23@hotmail.com)

Regards.

hi
is there anyone that can help with engineering science TMA 1 Q3 seem to be struggling with these after finding Q1and Q2 easyish but 3 has just stopped me dead with not been sure where to start etc,, lesson books dont seem to be a great help with this one... any kind of help would be great..

my email is matthew.harrison1@ntlworld.com
if anyone can share ideas
thanks matt

Edited: 11 July 2012 at 09:37 PM by mattyh3

Hello ladies and gents has any one completed the PLC module or attempted it as i have got a few issues i could do with sharing notes and ideas i have previously completed AM and science