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  1. S

    calculating diversity for lighting circuit

    Hi I'm sitting my unit 4 exam for C &G 2330 electrotechnical course. I'm a little confused to calculate the answer to this question I can't get the same answer 10 x 60w fluorescent lamps will have an assumed current demand at 230v of a. 2.6A b. 4.35 A c. 4.7 A d. 7.83...
    • swc
    • Thread
    • answer arial aus calculating circuit diversity guide lighting lighting circuit question serif
    • Replies: 18
    • Forum: Australia
  2. A

    NICEIC Certification Scheme 2391-10 Blended NICEIC

    Hello all, First of all, apologies if this has been posted elsewhere before, I've searched but couldn't find the answer I was after, hence this post. I've just got a couple of questions really. I'm a qualified electrician and now looking to do my 2391 course with NIC... I've just been looking...
  3. P

    Well what is the answer?

    6÷2(1+2)=? :p
  4. E

    Curious Question buzzing and dimmers...

    Back when I was in training I always remember the boss had a problem with a buzzing dimmer on downlighters. Solved it by changing the voltage of the dimmer.... Can someone tell me why the dimmer buzzed, didn't take enough interest at the time but would like to know why???
    • Electricalserv
    • Thread
    • answer aus buzzing didn't dimmer dimmers question voltage
    • Replies: 5
    • Forum: Australia
  5. P

    can 240 drills be changed to 110

    as above rearly just wondered if i can change a 240 3pin plug to 110 mabe a stupid question but i dont no the answer lol
  6. B

    Can this be done in a home situation (probably a simple answer)?

    This will either be a yes or no question, and for an experience electrician - will hopefully be able to answer quickly and concisely! Anyway... I have so far basically taken an 4-gang ordinary extension lead, cut the 'extension' end off, pushed the cable through a wall, and terminated with a...
  7. B

    Construction Industry Scheme

    Are those of you who are small companies doing solar pv registered under the HMRC Construction Industry Scheme (if you care to admit it in a public forum). The reason I ask is that I thought I would be able to avoid it as I do not subcontract to other companies, but I spotted something on...
  8. P

    2391 exam question. pls give an answer

    A single phase power circuit supplying an item of equipment,having a full load current of 25 A,is to be checked to confirm voltage drop compliance.The circuit is installed using 6.0 mm2 cooper conductors,with a circuit length of 35m. a) Calculate the maximum permissible voltage drop for this...
  9. J

    Worx Versacut battery life?

    Has anyone else got a Versacut and can tell me how long their batteries last? Mine will only do about 3-5m of 20mm T&G floorboards before it needs charging, is that normal?
  10. M

    Ill probably answer my self later

    testing a hotel chain type you have all stayed in them anyways DBs for rooms 1or2 are mounted in side service ducts over the years and possibly since build some of the stop cocks and pipe work are above the DBs and Im concerened as due to the age some have leaked in the past my question is...
  11. M

    How to answer the question??

    Hey I'm new here but am trying to get into college to take an electrician course. I have been sent a question about how to change a light fitting safely. As I have zero experience doing this, could you reccommend me some useful websites for this info? Preferbly in simple steps. It also...
  12. S

    Can anyone answer this 17th exam question?

    39. From Appendix 12 the maximum permitted voltage drop for a 230V singl-phase lighting circuit, fed from the public LV distribution system, is: A. 20A B. 32A C. 45A D. 50A and if you would be kind enough to explain how you find it out!!
    • shakin2011
    • Thread
    • 17th answer anyone aus course edition exam question training
    • Replies: 9
    • Forum: Australia
  13. B

    Answer me this!

    Hi all, I am a new member on the forum and am currently training to become a spark. I was practising on some theory questions and a seemingly easy question has me stumped. If you fancy a crack then have a go and let me know where iv'e gone wrong. The question is... What is the length of a 6.0mm...
    • Bryan_D
    • Thread
    • answer aus
    • Replies: 2
    • Forum: Australia
  14. N

    Help Please with Parallel connection affect on Resistance!

    Hi i have this question that i am not sure of the answer. Can you please Help? State the effect on measured resistance when cables are connected in parallel. Answer: The resistance value will be reduced. For example in resistance for Zs testing in ohms has a measured value that is...
  15. A

    Happy to answer business questions guys

    Just wanted to mention that I'm happy where I can to answer any business questions. For all my sins, I'm a Ba Hons in Business with accounting, and have many years experience at the coal face. If I can help, I will.
    • accordfire
    • Thread
    • answer business happy questions
    • Replies: 6
    • Forum: Business Related
  16. K

    Homework

    Homework As I said in the thread “Question” this is becoming a problem on other engineering boards with students wanting the answers to a question set by their tutor. As a rule of thumb help will be given in pointing them in the right direction, but NOT the outright answer. A classic was...
    • Knobhead
    • Thread
    • answer aus electrical work homework question
    • Replies: 0
    • Forum: Australia
  17. R

    Smoke alarms and rcbo's - have looked at other threads but still no definitive answer

    Hi All, Quick question, Have dual RCD board, one circuit on its own is a smoke alarm. I have read all this stuff about smoke alarms being on their own RCBO or with the RCD gang. Can someone please explain why it would be bad practice to put a smoke alarm circuit with others ? My...
  18. Z

    installation activities

    Hi there can any one let me know the 6 installation activities on domestic and industrial installation please. many thanks.
  19. D

    scenario to answer

    ok this crossed my mind other day and where do you stand?? answer honestly in you opinion you install a new CU with RCBO's for a little old lady who has not much money and her old box is damaged due to mechanical damage! you do the usual pre checks to see if it will change out ok! you...
    • DurhamSparky
    • Thread
    • answer aus
    • Replies: 25
    • Forum: Australia
  20. M

    Need answer to these questions - 2330-302

    This paper was used for my last exam which i did fail, then did another paper and passed, would would love to have correct answers to these please. I have put the questions and below i have put how many marks the question is worth. I need your help on this please.:) 1) A low resistance...

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