sorry i don't knwo what they will ask...have never been in your situation
if the Sw doesnt like you she may be hostile and aggressive so you will need to keep your cool
They will probably ask things like:
who will care for the child - are you or your DP at home full time?
what kind of activities etc will he do when he stays with you?
do you have any other experience of children?
if you have children living at home, how will they cope with the new arrival?
if your children are younger, have you considered any risks to them? How well do they knwo this relative?
what are your house rules? how flexibel are these? how will they apply to your relative and to your other children ( if any)
as you say you come from a very different background from the child, how will you seek to overcoem these cultural differences?
how will you cater for his religious, language and cultural needs?
what are your views on discliplne? How will you cope with his behavioural issues?
she shoudl only ask about financial issues if it seems that you woudl be struggling to suuport him during your stay. She shoudlnt ask about your sex lives but its not unknown, if they want to be nasty. If she does, i woudl ask politely how that information is relevant to caring for the child.
If its suspected that the child has been sexually abused they may ask what you knwo about sexual abuse etc
cat shoudl not be an issue unless child has allergies or a history of aggression. lots of kids with attachment issues are abusive to pets
you won't need to hide the alcohol but they may ask you to watch what and how you drink, if the child has been exposed to violence or abuse related to alcohol . You may need to check that the child doesnt have access to alcohol in your home
hope that helps. sorry its not very coherent, kisd running mad here