hi guys,
i am looking at joining elecsa but was wondering what are the questions you get asked in the assessment like? are they about testing ? Regs? any advice would be great.
cheers
hi all new to this site and was wondering if anyone had the answers to junes 2391 exam paper,i attained a copy and was wanting to check my answers cheers
hi guys came across 2 questions in a past paper but not sure how to give a correct responce for it in an exam i am probably thinking about this one a bit too much and i know the answer is simple but putting the answer on paper is not happing for me any help wil be appreciated thanks in advance...
A 1.5mm2 conductor has a design current of 4 a and a length of 10 meters. its volt drop is 29 mv/A/m what is the volt drop across the terminals.
Can anyone show me how to work this nasty little bugger out
Answers are
11.6v
17.4 v
1.16v
1.74 v
lofty84
Thread
answer
aus
because
electrical work
length
metre
out
volts
work
Hi guys,
What are the rules and common practices for unfused spurs on a standard ring main?
If you use 2.5 for the spur than how is that properly protected with 32A MCB
Hi,
Im new to these forums so please go easy on me!!
Ive been asked to set something up for a friend, an add-on to his CCTV setup. Basically he wants to be able to dial into his building via mobile phone, and be able to talk over loudspeaker.... either to people breaking in... or to tell...
1) What are the main types, their advantages and limitations of different electrical connections?
2) What are the procedures for the connection of single and multiphase circuits?
3) What are the implications on the choice of connections with regard to permanent or temporary purposes?
Any...
ive got my assessment coming up for niceic domestic contractor one of my jobs is a new distribution board and the other one is a additional socket i just want some information into what the assessor will be asking for and what is the overall process and how long do they spend at each of the...
Hi, Just started studying for my 2330 level2 and want to be able to test myself as I go to see if it's sinking in!
I signed up with OLCI training and have their coursework but also bought trevor linsleys book too. Completed the Health and safety section and done a free online exam for that...
Hi all,
Just done some samples papaes, the confused Qs are as below:
Q. The minimum cross-sectional area of any conductor in a caravan is
a.1.5mm2
b.2.5
c.4
d.6
the answer is a, however, I found from P.191, the min. is 2.5mm2 for 16A
Q. The maximum permissible height for a caravan inlet is...
tcfreeman08
Thread
answer
caravan
confused
electricians vans
fuse
height
quite
van
vehicle
Hey I am trying to do this formula but I can't work out the last number to get answer the bit I can't do is the 10-6 to get the answer.
frequency of 1 KHZ
2x3.142x1000 x220x10-6 - = 723.4ohms
Frequency 20 KHZ
2x3.142x20000x220x10-9 = 36.2ohms
Can anyone describe how to do the last...
Mikeymike77
Thread
answer
electrical work
frequency
help!
need help
out
resistance
times
where
working
A special LED has a forward voltage of 2.2 V, and requires 10mA to produce its rated output. It is to be powered using a 9 V battery:
a. Calculate the value of the LED’s series current-limiting resistor...
Two resistors, R1 and R2 are connected in parallel. R1 is 2kW, R2 is 4kW. What is the equivalent resistance of this network (answer rounded to nearest whole Ohm):
Could you tell me how can you get the answer?
turbomen
Thread
answer
electrical work
equivalent
network
question
resistance
roman
symbol
times
Hi all, hope you can settle this little difference of opinion.
Got a small job extending a lighting circuit to put extra light in an attic. No RCD at the moment. One view says must put in RCD at least for the lighting circuit we modify but t'other says not needed cos the extension is not buried...
just wondered if anyone can find this one as i couldn`t
A single phase ac installation from a lighting db contains a common conduit with 8 single core cables the grouping factor to be applied is
a 0.59
b 0.65
c 0.75
d 0.8
may be i was rushing but could not find one of these in...
TONY JONES
Thread
17th edition
answer
course
edition
exam
question
training
Hi,
two questions really. i think the answer to the 1st one is no but ill ask anyway.
1. Is it possible to get a installation tester that you can use to PAT test. i know most installation testers use 100mA earth test current. thats would only be suitable for IT appliances, right?
2. has...
1) Step-up and Step-down transformers are used to change voltage and?
a) current
b) resistance
c) power
d) all of the above
2) Long-distance transmission of electricity requires?
a) high current, low voltage, and low resistance
b) low current, high voltage, and...
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