For the specific question, YES, if you look at bridge vlan settings you will see what has been entered by you as the admin or dynamically assigned by the router.
Note that when you put a PVID on the Bridge port settings (where they belong), the router will dynamically assign an untagged port on the vlan-id where applicable but I PREFER to do it manually in the bridge vlan settings so they show up in the config script when I am troubleshooting and can visually map the traffic flows easier.
The best article to read is
http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1
I am assuming the hap devices will be more like switch access points and will not do any routing (not advised anyway as RB4011 is more than up to the task 
)