BLACKFIRE PASS RULES:
Where does it say if the dwarf engineer begins with engineering and tradecraft acquired?
For initiates, for example, they don't begin with piety or invocation acquired, but wizards start with their advanced skills.
Where does it say if the dwarf engineer begins with engineering and tradecraft acquired?
Not every priest have to cast spells, you are free to play as magicless one. This is fully supported by lore.
There is no chance of mage not being able to cast spells, this would be impossible to let him enter one of the Collegues of Magic, if he had no magical talent.
Yea, the old Dungeons & Dragons holdover for Clerics still holds sway over WFRP3 imho..but I can understand the point of a "Lay Priest."
Our group was debating the effect of a Dwarfen Engineer who doesn't begin with Dwarfen Engineering and Tradecraft. Without tradecraft you've got...?. 
jh