17th ed exam

[lilman]

I just did the update exam with the IET; no course involved - simples. Cost

 

[Lee321]

Yes ,I copied it verbatimIt is a bum question , what factory runs through a giant RCD .

all factory's with high risk of fire quote "Locations with risks of fire due to the nature of processed or stored materials"

I can't think of a more "fire waiting to happen" factory than a paper mill !

a fire works factory maybe?

senario deke

a trunking is used for some fat singles to supply a load lets say its a 400a supply. over the years the trunkings got rusty/mechanically abused and the joints now have high resistance. a fault develops connecting the neutral of the load to the trunking. now a big portion of that 400a will flow down the trunking through the not so good joints and create heat!! if that happens to be where someone has stacked tons of paper or even a few shavings its at risk of setting it on fire and you can only imagine how fast fire could spread.

if a rcd is fitted at the source that current in high resistance earth paths is minimised to the rcd rating and hence less heat in those bad joints.

upto 1200A earth leakage mccb's. for larger 2000a etc an earth monitoring kit and shunt relays

.

 

[Lee321]

You think you have it bad? When my 2391 qualification is 5 years old, NAPIT expect me to take it again if I want to carry on doing PIR's!

sounds a bit stupid volt, but why would they want yo to take it again when you do it every day? your good enough yesterday but not to day lol

now that makes me laff. does the city and guilds qualification certificate have a expiry date on it ROTFWLROTFWLROTFWLheadbangheadbangheadbang

making it up as you go along or what

makes me not want to not ever join napit

 

[SPECIAL LOCATION]

I looked at the downloads (thanks) but some of the questions seemed wrong to me ,which is worrying. Ommission for circuit protection against overload may not be given to which of the following:-

Fire Alarms

Control circuits for fire extinguishinhg equipment

Exiter circuits for rotating machines

Supply circuit for lifting magnets.

I've never read about not having overload protection on any circuit although I have wired a pump to power a sprinkler system where the insurers told us to remove overload protection ie; HRC fuses and connect direct to the busbar system , we refused and told them to come and do it themselves as I could'nt find any reference to it.

Your answer: a) fire Alarms....

(your insurers were on about 433.3.3 (iv) this is an old reg.)

Don't forget the 17th ed exam isn't just about the new bits of 17th...

its about the whole of the regs in general!

this one is Reg 433.3.3 page 75 red book...

used to be

473-01-03 page 73 brown book

or

473-01-03 page 67 Yellow book.

Not a "17th" reg as such...

just a Bog standard reg that has been there for while now....

Its the old one about if you cut the power to protect from one hazard you actually introduce a potentially greater hazard....

So an overload alarm warning would be more appropriate to allow the item to be safely de-energised and isolated!

Our lecturers used to like the example of the magnet crane (ii) cut the power and the pile of metal comes crashing down on poor Brian's head :C

The trick to passing any C&G electrical exam is...

Read the question 5 times and FULLY understand the number of double negatives they have inserted!!!!!

"Omissions are NOT" = you may omit! :|

Cus the bottom line is there are only so many ways you can actually write a question to ask if something can be done of not!

:coffee

 

[Lee321]

SL all of the examples are listed! ???

433.3.3 (v)

 

[Evans Electric]

Your answer: a) fire Alarms....(your insurers were on about 433.3.3 (iv) this is an old reg.)

Don't forget the 17th ed exam isn't just about the new bits of 17th...

its about the whole of the regs in general!

this one is Reg 433.3.3 page 75 red book...

used to be

473-01-03 page 73 brown

or

473-01-03 page 67 Yellow book.

Not a "17th" reg as such...

just a Bog standard reg that has been there for while now....

Its the old one about if you cut the power to protect from one hazard you actually introduce a potentially greater hazard....

So an overload alarm warning would be more appropriate to allow the item to be safely de-energised and isolated!

Our lecturers used to like the example of the magnet crane (ii) cut the power and the pile of metal comes crashing down on poor Brian's head :C

The trick to passing any C&G electrical exam is...

Read the question 5 times and FULLY understand the number of double negatives they have inserted!!!!!

"Omissions are NOT" = you may omit! :|

Cus the bottom line is there are only so many ways you can actually write a question to ask if something can be done of not!

:coffee

The poor grammer did not help me one iota.

Or should that be;

It was not the poor grammer that did not help one iota .