2382-622 exam question

[IvayloP]

Hi there. I am a student part time for level 1 &2 in UK. I will have an exam 2382-622 but I stuck to one of the questions. Actually when I looked for information around and make some thinking about it I think the answer would be,B - Maximum demand, because everything else can be directly measured or calculated. Am I right with that though.
I don’t know why the picture can’t be attached. The answers are
A- nominal voltage
B- maximum demand
C- prospective fault current
D- earth fault loop impedance

 

[westward10]

On page 510 is Electrical Inspection Certificate.

Correct and if you look it tells you the answer as to which one of the four it is.
Can we please not give him the answer he needs to find it.

 

[Tom256]

Correct and if you look it tells you the answer as to which one of the four it is.
Can we please not give him the answer he needs to find it.

Understood and quite correct.

 

[IvayloP]

I had to open this sait throgh the computer. So here are the picture ofte question and page 510 from BS7671. Nominal voltage,PFC and Earth fault loop impedance are characteristics of the supply. Maximum demand is characteristic of the load but the question here is - Which characteristic of a public supply can ONLY be determined by enquiry? So here isn't importatnt what is included into the characteristics of the supply,they asked only which of them can't be measured or calculated and only can be achieved by enquiry. This is the way that I understood that qiestion. If the maximum demand isn't supply characteristic so we can exclude it from that, because they asking about the characteristic of a public supply. I hope now everithing is clear. What are your assumptions?
Edit i saw it . There is a little note under nature of supply parameters. Number 1 can be determined only by enquiry,an number 2 enquiry and measurement. So by enquiry Nominal voltage and Nominal frequency, and because there isn't Nominal frequency among the answears the correct answear is Nominal voltage. Someone here led me to that conclusion on previous posts. We can measure the voltage but we wouldn't know that this value is the correct value before it be confirm from power company. Alright guys , thank you about your help. Now I am ready for the tomorrow's exam- I hope

Nominal

 

[Tom256]

What are your assumptions?

I do not understand what you are asking.

 

[IvayloP]

I do not understand what you are asking.

Didn't you see the pictures into the post? Tom you were the person who gave me a clue about the nominal voltage .

 

[Tom256]

All the best in the exam.
Understanding how the questions are worded and what is being asked of you is important in your future exams.

Someone here led me to that conclusion on previous posts. We can measure the voltage but we wouldn't know that this value is the correct value before it be confirm from power company

Pleasure to assist. The key word is Nominal. Taking time to understand the reason will serve you well.

 

[westward10]

Good luck let us know how you get on.