Final answer:
Yes, a chairman who notices a breach of the rules can call a point of order.
Step-by-step explanation:
Yes, a chairman who notices a breach of the rules can call a point of order. According to the parliamentary procedure, a point of order is a statement raised in a meeting or assembly when a member believes that the rules of the meeting are being violated. The point of order is used to draw attention to the violation and request that the rules be followed. For example, if a meeting has a rule that only one person can speak at a time, and the chairman notices two people speaking simultaneously, they can call a point of order to address the violation and remind the participants to follow the rule.