17th edition wrong answers

[Cazmac1]

Hi all, I'm currently studying for the 17th edition exam and brought a load of past papers from ebay.
I come across a few questions that I think the wrong has been given. I would like some help to clarified weather the answer is correct or not.
I will post any questions that I have an issue with and hopefully you guys will help give me the correct answer.

If you have the follow circuits how many live conductors are there

2 x 15A lighting circuits
2 x 32A ring circuits
1 cooker circuit
1 immersion circuit.

Now I always been told that the neutral is a live conductor so I worked it out as 12 is my answer correct?

 

[Sintra]

I get 16

 

[Deleted member 9648]

16 as well..

2 x 15A lighting circuits 4
2 x 32A ring circuits 8
1 cooker circuit 2
1 immersion circuit. 2
=16

 

[platty1005]

16 - 2 for each radial and 4 for each ring final

 

[Cazmac1]

Thanks for that I think 16 is the correct answer, But I'm sure this was not the answer on the paper.

 

[oxocube]

12, a ring final is one circuit consisting of L&N.

But C&G are famous for asking unanswerable stupid questions.

 

[Cazmac1]

I just found the paper and the answer given as being correct was 8, which is 100% wrong.

 

[Sintra]

12, a ring final is one circuit consisting of L&N.

But C&G are famous for asking unanswerable stupid questions.

Where i come from a ring final is one circuit with 2 x L & 2 x N.

 

[Cazmac1]

It can't be 12 as it is not even listed in the answer options.
the options are
A 6
B 8
C 16
D 24

 

[Monkey]

love it

 

[telectrix]

where i come from a ring final is one circuit with 2 x l & 2 x n.

i have to disagree. Ok , i can see what you mean, but if you've got 10 socket oulets with the cables joined at each socket, the you could say you've got 22

 

[Cazmac1]

I see where your coming from but I'm pretty sure that I can recall a teacher telling me that the a ring is classed as have 2 neutrals and two lives. don't ask me to tell you why

 

[vernam616]

I think everyone is looking too far into the question, i had this one myself and it does seem a little odd however take it for what it is, when it says live i reckon they just mean LINE conductors

Some 16yr old on works experience at C&G probs wrote this one out

 

[oxocube]

Dis-regarding what is the right or wrong answer to this stupid question, what is the point? what is the answer supposed to demonstrate? tiz ********.

 

[Octopus]

If you count them at the CU its got to be 16 but 8 "ends" are actually 4 so maybe its 12!

As others have said maybe its one of those classic unanswerable questions or more likely, like BS7671 open to interpretation!

LOL

 

[telectrix]

but because its a continuous cable, albeit jointed at every socket outlet, its still 1 conductor for the L and 1 conductor for the N.

 

[platty1005]

The only place all the live conductors are in one place is the CU so counting the number of LIVE conductors present there can only be one answer 16

 

[Deleted member 26818]

Could it have been Line conductors?

 

[Sintra]

Could it have been Line conductors?

Could be what C&G meant, then the answer would be 8

 

[platty1005]

Cazmac 1 - please post the complete question to avoid all confusion

The reason Ring and Radial circuits are quoted is to test your understanding of the DIFFERENCE between the 2 so
If the Question is LIVE conductors answer 16
If question is LINE conductors answer is 8