1. Yes he will, tho i would not advice to play players over 80 minutes total either.
2. Yes he will recive some training for 30min
3. Yes he will recive training for 30min and it's not often that plaeyr who played over 40min drops in form (atleast not in my team)
4. i give you one more example, If you train C/PF and your player plays 23min in C and 25min in PF he will recive full training.
Will playing positions affect the training of the player? Thanks.
If you mean the give preffered position to a player, then no. Height can affect some i think and age.