The amount of overlap that one part has with another when assembled is called what?

• A. Accent
• B. Interference
• C. Neural Component
• D. Continuum of Learning Theory

Answer: (B)

In assembly, the amount of overlap between two mating parts is described as an interference fit. This occurs when the external dimension of one part is larger than the internal dimension it must fit into, so the pieces must be pressed or forced together. The overlap between them creates interference, meaning the parts grip each other tightly once assembled. The more overlap, the stronger the interference and the tighter the fit. This is different from a clearance fit, where there’s a small gap and no overlap. The other terms listed come from unrelated areas—accent relates to pronunciation, a neural component to neuroscience, and continuum of learning theory to educational psychology—so they don’t describe this mechanical concept.