Final answer:
A point of order may be raised on the chair when the chair is not following the established rules, making biased rulings, or not maintaining order in the meeting.
Step-by-step explanation:
A point of order may be raised on the chair in parliamentary procedure. One example is when the chair is not following the established rules of the meeting, such as allowing a member to speak out of turn or not recognizing a member who wishes to make a motion.
Another example is when the chair is making biased rulings, showing favoritism towards certain members or not giving fair consideration to all viewpoints. A third example is when the chair is allowing disruptive behavior or not maintaining order in the meeting.