If your talking to a VFR only PPL they will more than likely not have a clue what a rate one turn is or for that matter know it should take 2 mins to complete. And there is no requirement for a turn and bank indicator to be fitted to VFR aircraft.
I see you NZ the PPL's might be taught it down there.
What you will get though is a 25-30 deg banked turn and how long that takes will depend on how fast the aircraft will be going.