When I went through the recruitment process for the airline I've worked for now for the past 8 years, we were put into either a B767 or B747-300 simulator for assessment. The usual stuff, all to be flown within regulatory tolerances, hand flown, no A/P or A/T. So I was going from flying C402s and C340s to being assessed in a B743 simulator (Most of the applicants like myself only had about 1000hrs TT - all on pistons)
Managed to pass (along with a lot of other applicants), got the job with an airline that flies only a fleet of Dash 8 Classics and Q400s.
So we had to be assessed on a jet to fly a turboprop. It's all down to the aptitude of the candidate, and how reliable the training system is of the organisation.
And a bit of the good ol' Power + Attitude = Performance.
Fuel-Off
