False.
A measuring cylinder can be used to measure the volume of regular-shaped solids, provided they are small enough to fit inside the cylinder and the solid does not dissolve or react with the liquid in the cylinder. The process involves measuring the initial volume of liquid in the cylinder, then immersing the solid in the liquid, and finally measuring the new volume. The difference between the two volume readings gives the volume of the solid.
However, for irregular-shaped solids, measuring cylinders may not be the most accurate or convenient tool for measuring volume. In such cases, methods like water displacement or using specialized equipment like volumetric flasks or graduated cylinders with precise markings might be more suitable.