Yes. At least in many if not most cases. Some pre-qualifiers don't allow them, but you can also use a motorized cart in some pre-qualifiers. You can also use certain non-conforming equipment at a pre-qualifier...but not in the qualifier. Many/most PGA pros don't have to pre-qualify.
Yes
no
The Nationwide Tour would be the tour before the PGA Tour, the top 25 on the Nationwide tour at the end of the season win PGA Tour cards.
No rule against it. Although they would probably prefer it be covered.
PGA Tour of Australasia was created in 1973.
PGA Tour on USA was created in 1982.
PGA Tour on ABC was created in 1966.
PGA Tour on CBS was created in 1956.
The PGA Tour is associated with the sport of golf.
Professional Golfers Association of America started in 1916.
Tiger Woods PGA Tour was created in 2003.
PGA Tour Network was created on 2005-06-09.