My quiz would first ask people what category they get lumped into: Republican or Democrat. They'd have to choose one or the other, just for the sake of a point.
I'd ask people their views on the following things:
New World Order: happening/not happening.
Global warming: our fault/ not our fault.
Audit the fed: do it/don't bother.
End of capitalism: Please/hell no.
The national debt: not a serious worry/killing us.
The trade deficit: worry/don't worry.
Wind and Solar energy: Only develop them/what a joke.
Nuclear energy: needed/no way.
Mass vegetarianism: need it/no way.
National service requirement: good idea/wrong-o.
Capitalism: Maintain/phase out.
With Dems ruling, the future is going to be worse/better.
Healthcare reform: unneeded/needed free/public option or nothing.
American exceptionalism is: Jingoistic/a good example.
The electoral college: abolish/keep.
End political parties: yes/no.
Illuminati-shadow government: definitely exists/pshaw.
Freedom of speech: Threatened/not threatened.
School choice: absolutely/no.
Illegal immigration: amnesty/stop the flood.
English as state language: Yes/no.
Get us out of Afghanistan: Yes/no
Early term abortion: okay/no way
Civil Union for all: yes/no
Gay marriage: yes/no
I am completely confident you couldn't tell a person's political tendencies by their answers.