a. True
Assembly drawings normally include dimensions. These dimensions provide critical information about the size, shape, and position of each part in the assembly, and are essential for ensuring that the final product is assembled correctly. Assembly drawings may include different types of dimensions, such as linear dimensions (for length, width, and height), angular dimensions (for angles and rotations), and coordinate dimensions (for locating features relative to a reference point). Additionally, assembly drawings may include tolerances, which specify the allowable variation in the dimensions to ensure that the parts fit together properly.