...........there's an old saying that goes for anything in life where a possible job is at hand............"chance favours the prepared mind".........obviously means there's a good chance if yr prepared.
To a point what Howard said is true but all employers will expect you to know something of the job at hand & in our case as pilots that usually means current ops & A/C type, general performance etc.
Anything in the DH range is well respected, I have a few hrs behind the wheel of a DH104 for Eg. & when I was snooping around for the job I read all I could about the old birds & it payed off.
Good luck but you won't need it much flying at around a 100 kts, wheels always down PT6 engines & the air inside the fuse is much the same as outside !:-)
Capt Wally