In board exams, questions from Chapter 12 typically focus on calculating the surface area and volume of solids. These can include both direct calculation problems, where you simply apply the formulas, and more complex word problems that involve real-life situations, such as finding the amount of material needed to cover a tank or determining the volume of water a container can hold. There may also be questions involving the combination of solids, where you need to calculate the surface area or volume of an object made up of more than one solid. These questions test both your conceptual understanding and problem-solving skills.