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maths

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  1. D Skelton

    How's your maths?

    I'm just wondering whether anyone can see any benefit to some electrically related maths questions? If so I'm happy to post a few. Just testing the water really :)
  2. N

    is anyone here as bad as maths as me?

    ive been going through some of the calculations in a book i was kindly sent via email form someone from this forum and i am really struggling with it. I have never been maths orientated, was in the bottom set in school which meant i could only get a D at GCSE and had to get a tutor to help me...
  3. Rockingit

    IR Maths not adding up....

    Currently on site and getting very confusing IR results on an EICR...any suggestions welcome! TT @ 43.7 Ring with R1R2 values OK at around .5 as an average. IR value consistently .049 R1R2. Have SCOURED the place with the owner and no hidden sockets, spurs etc or neons. Voltage is 233, so by...
  4. N

    I need help with the Maths

    Hello All, I need some with the maths for the city and guilds 2330 electrotechnical certification for electricians level 2. The question is calculate the power required to raise 15 M3 of water per minute through a vertical distance of 35m. 1 litre of water has mass of 1kg. the mass of...
  5. D Skelton

    Electricians should know their maths full stop! Do you?

    Ok, so following on from darkwood's original thread on basic maths I thought I'd start a thread for people to add a few things that are a little more complex than basic multiplication and division. Nothing too hard but should still be easy peasy for any spark! I'll start with this: Make G...
  6. W

    Diversity calcs - need more copper my way, cant do the maths.....

    Alright there lads, Its been a little while since my last post ive been AWOL somewhat and been involved in other business. But now i have returned to the world of ball ache and once again, in need of some advice. I hope you are all well. i need to spend some time over the next few days trying...
  7. La Poste

    HNC maths bridging course

    Greetings. I have heard the maths bridging course mentioned quite a few times but I still don't know what it is. So has anyone a link or some guidance to the course number for the maths bridging course. I hope to eventually study an HNC later. Thanks.
  8. B

    Not electrical but I need some maths help.

    Trying to work out how much air M^3/min an airline will be releasing to atmosphere. I've searched google and can't really find a formula I can use without going massively in depth with it. I only want a fairly accurate rough answer. Can anyone help. Heres some information: The airline is...
  9. M

    Commercial EPC course - Day 1

    Having had to pay out way over £1000 plus VAT twice in recent months to get commercial EPC`s done I decided enough was enough and I would do the course myself. Started course today in Fleet Hants, very early this morning with only three of us on the course. Both of the others are Domestic Energy...
  10. B

    Maths in electrics

    Hi, im about to finish my level 2 course, ive just retook my maths gcse and i have a D at the moment so if i don't get a C im not sure what happens. I understand most colleges require a C Or above for level 3 without an apprenticeship but if i got an apprenticeship with a company would colleges...
  11. S

    what maths level

    Hello all. I was wondering how much importance is placed on Maths when training to become an Electrician. Its something I have often considered but have always been put off because maths is not my strong point. Please advise Thank you
  12. S

    Maths

    Hi all back on night shift A conductor has across-sectional area of 20mm2, a lenght of 48m and is made of material with resistivity of 0.02 u ohms m .Its resistance is
  13. S

    maths gone blank

    HI all back on nite shift A 2.5 kw heater is in use for 7.5 hours daily and energy cost 7.1p per unit. the total cost of running the heater over a month of 28 days is = How to work it out
  14. K

    A-Levels or not? work experience help and degree help

    hi :) i am 17 and i am a student and i have completed my 2330, 2382, 2393 and 2377. i am currently completing my work experience which shud last about 1 year. I want to specialize in power distribution and transmission or design and i aim to start uni to get my bachelors in electrical...
  15. T

    maths exams past and present

    UK Maths Past and Present 1. Teaching Maths In 1970 A logger sells a truckload of timber for £100.. His cost of production is 4/5 of the price. What is his profit? 2. Teaching Maths In 1980 A logger sells a truckload of timber for £100. His cost of production is 80% of the price. What is his...
  16. K

    maths question

    a capacitor of capacitive reactance 50ohms an inductor of 80 ohms inductive reactance and a resistor of 40 ohms are connected in series to a 200v 50hz supply the impedance will be: the answer is 50ohms but i dont know the workings out. anyone know how to do this. cheers
  17. K

    maths question

    a capacitor of 100uf is connected in parallel with a 20ohm pure resistor. the group is connected to a 200v 50hz supply calculate the power dissipated in the combination. the answer is 2000w but i dont know the workings out anyone please? is it as easy as p=v2/r im sure there is more than that.
  18. P

    4 hours of maths

    well that`s another four hours of maths done. time for the codeine:) now
  19. I

    electrical maths

    hi all ,pleas could some one help me with this::confused: a 12mm squared cable with 90 degrease thermosetting rubbers is to be used in conjunction with lighting,small power, data and fire alarms insullations. it is protected by a 40 A fuse to BS 88 part2 in an installation where loop...
  20. Dan

    ContractorForum: C&g 2330: Hi all does any one know what level the maths is in the 23

    ContractorForum: C&g 2330: Hi all does any one know what level the maths is in the 2330 level 3 coures? after you achieve the 23.. http://------/5cf2Ln More... Follow us on Twitter.

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