Which statement best describes a tapped hole?

Which statement best describes a tapped hole?

• A. Has internal threads
• B. A conical-shaped recess around a hole, often used to receive a tapered screw.
• C. A line used to show the alternate positions of an object without interfering with the main drawing.
• D. An assembly drawing in which parts are moved out of position along an axis.

Answer: (A)

A tapped hole is a hole that has internal threads cut into it, so a screw or bolt with matching external threads can be threaded into it. This internal threading is what defines a tapped hole and allows parts to be fastened together securely. The other ideas describe features that don’t provide internal threads: a countersink or conical recess is meant to seat a tapered screw but doesn’t create threads, and lines or exploded views describe how parts appear or move in drawings rather than how fasteners engage. In practice, tapping creates the female threads after drilling, enabling the fastener to grip the coordinated hole with the correct pitch and depth for a strong joint.

A tapped hole is a hole that has internal threads cut into it, so a screw or bolt with matching external threads can be threaded into it. This internal threading is what defines a tapped hole and allows parts to be fastened together securely. The other ideas describe features that don’t provide internal threads: a countersink or conical recess is meant to seat a tapered screw but doesn’t create threads, and lines or exploded views describe how parts appear or move in drawings rather than how fasteners engage. In practice, tapping creates the female threads after drilling, enabling the fastener to grip the coordinated hole with the correct pitch and depth for a strong joint.