JOB INTERVIEW QUESTION FOR BOILER COMPANY

[ChrisR]

3 electrical checks:
Live to earth , should be 230isVAC
Live to Neutral, ditto,
Neutral to earth a very small voltage, depending on your meter.

Low water content on gravity ? NO.
They rely on a pump to get the heat out of the boiler.

But always
check the manufacturers instructions

check the manufacturers instructions

check the manufacturers instructions

check the manufacturers instructions

 

[ollski]

3 electrical checks:
Live to earth , should be 230isVAC
Live to Neutral, ditto,
Neutral to earth a very small voltage, depending on your meter.

Surely thats one electrical check chris?

 

[tommyapps]

it wasnt the agency that sent me for an interview, it was the boiler companies decision.. there just acting as the "middle man"..

 

[gasman26]

Low water content on gravity - noooooooooo

Check for suitably rated fuse according to boiler/system

Earth Continuity - Under 1 Ohm, between appliance earth & at various points around the case

Short Circut Check - Between L&N Zero - ohms or oL indicates a short circuit (fuse removed while testing)

Resistance to earth check - Between L&E All swiches & t/stats switched on ( but still no power) Should be getting a reading above 1Mohm (fuse removed while testing)

Mains volt tests & polarity

L-N 240v
L-E 240v
N-E 0-15v

 

[gasright]

little tip:

if your stuck on these tests

Put them on a credit card sized piece of paper, laminate it and then keep for referance in your wallet.

I always keep little referance cards in my wallet for

gas rating
ventilation
purging

as do most engineers

 

[scatmanjohn]

gasman26 wrote;

oL indicates a short circuit

 

[corgiman]

gasman26 wrote;

oL indicates a short circuit

surely that cant be right

and dont call me shirley

 

[nickso]

gasman26 wrote;

oL indicates a short circuit

surely that cant be right

and dont call me shirley

shirley is right....thats wrong

 

[scatmanjohn]

Shirley....You noticed as well did ya.

 

[gasman26]

I take the oL comment back, don`t know where that came from

 

[corgiman]

Shirley....You noticed as well did ya.

I did and dont call me shirley

(well not untill you take me dancin anyway saucy )

 

[corgiman]

I take the oL comment back, don`t know where that came from

gasman its wednesay all is forgiven and forgotten wednesday

 

[ChrisR]

Typical of ACS questions really - when you've seen the answer you can work out what the question meant to ask!

 

[corgiman]

I love the way they are written

"do you do or do you dont do something what some may do when the meant not to do what you would have done"

A Huh?
B 2.5cm2
C NCS
D all of the above

 

[tommyapps]

much