2391-10 Written Exam - 01/12/11

[cr0ft]

Just sat this tonight. What does everyone that sat it tonight think of the paper?

 

[Scotchydog]

What did you all put for the two types of instruments that mease phase sequence - i werent sure if it was trying to get the two types of phase sequence testers in i.e the indicator and the digital one something along them lines

all though i just guessed the other one as a method of polarity i.e low resistence(reading) oh meter for DEAD and approved voltage indicator for LIVE

also i think i cocked up on the R1 + R2 on the lighting circuit as i didnt include the photocell just put the extremity of the circuit test r1+r2 and so on

 

[Banjo]

What did you all put for the two types of instruments that mease phase sequence - i werent sure if it was trying to get the two types of phase sequence testers in i.e the indicator and the digital one something along them lines

all though i just guessed the other one as a method of polarity i.e low resistence(reading) oh meter for DEAD and approved voltage indicator for LIVE

also i think i cocked up on the R1 + R2 on the lighting circuit as i didnt include the photocell just put the extremity of the circuit test r1+r2 and so on

For the phase sequence i put rotating disc type and indicator lamp type.

 

[Scotchydog]

yeah i agree that what it says in GN3 but my mind went blank when i read the question, allthough the exam was better than i thought i still think there was a lot of questions that i wasnt expecting just hope ive done enough dont think i got 80% maybe 70+, i will be gutted if i have to take it again

 

[NMc]

With 70+ Scotchydog you may be supprised. Now you have the long wait results due end Jan next year. Here's hoping

 

[ian.settle1]

Same here with the Q1 and 4, tht threw me a bit, then Q5 two things about the supply tht only find out from the supplier, I put frequency and earthing arrangement. section B I screwed up on ze test forgot it was a three phase board duh. Guess i'll be sitting it in Feb then lol

Why would you put frequecy as the whole of the country is 50hz?

 

[Des 56]

2 supply characteristics that can only be found out via enquiry to DNO

Ian I posted on this in another thread to the question above

The Pfc and the Ze can be measured or by enquiry
Frequency and voltage is nominal ,so these 2 cant be known by measurement only enquiry,city and guilds typical vague question

 

[Banjo]

2 supply characteristics that can only be found out via enquiry to DNO

Ian I posted on this in another thread to the question above

The Pfc and the Ze can be measured or by enquiry
Frequency and voltage is nominal ,so these 2 cant be known by measurement only enquiry,city and guilds typical vague question

Wouldn't the type and rating of the fuse be one aswell seeing as you can't pull the fuse to 100% know the tye and rating?

 

[Scotchydog]

what was it then got to admit i put earthing arrangements, frequency voltage

 

[Former Sponsor TM]

Guys, what about Ra of the electrode at the supply transformer??

 

[firemanowl]

If you look on the supply characteristics section on the test sheet in the fine print it says that you can only get nominal voltage and frequency from the supplier, just noticed it now. There was a question in Part B about the supply fuse or did I make that up?

 

[pfjt]

Can anybody the wording of q1

 

[pfjt]

Remember

 

[firemanowl]

I'm sure Q1 was what do you have to verify on an initial verification and Q4 was why do you carryout an initial verification or something like that. Seemed an overkill on the initial verification questions?

 

[tony mc]

Guys, what about Ra of the electrode at the supply transformer??

What was the question?

I should imagine no more than 21 ohms!

 

[Banjo]

Guys, what about Ra of the electrode at the supply transformer??

I can't remember that question? :S