SuStel:
> My answer is that in none of these sentences
> do we see question words as part of a noun-
> noun construction. In the first two we see an
> independent time expression (DaSjaj) and the
> question word ghorgh each standing alone.
> In the second two we see a locative
> noun (tera'Daq) and the question
> word nuqDaq each standing alone. There are
> no noun-noun constructions here.

So, would you accept the {ghorgh} and {nuqDaq} examples which I wrote, as being correct ?

{ghorgh DaSjaj mamej}
when do we depart on monday ?

{DaSjaj ghorgh mamej}
on monday when do we depart

{nuqDaq tera'Daq mIl'oDmey tu'lu'}
where on earth someone finds bears ?

{tera'Daq nuqDaq mIl'oDmey tu'lu'}
on earth where someone finds bears ?

Tentatively, yes. There's no rule that says locative or temporal phrases must be unique, that two such phrases can't exist in the same sentence, but you are following the rule that says locative phrases (and others) come at the beginning of the sentence.

Understand that this is not an exact science. There are degrees of confidence in various constructs, and not everyone feels the same about every example. Sometimes you'll stretch the grammar farther than some people are willing to go; at these times you need to consider whether you yourself are confident in the grammar you're using and whether you could accommodate your listeners with an alternative expression.

-- 
SuStel
http://trimboli.name