The primary structural, mechanical, and steering components that make up a standard bicycle.

The fundamental components that make up a basic direct current electrical circuit.

The main internal structural layers of a radial tire alongside the key external components of an automotive wheel assembly.

The major architectural elements and interior spaces of a medieval Romanesque church.

The fundamental mechanical and electrical components of a standard brushed direct-current electric motor.

The four sequential stages of an internal combustion four-stroke engine cycle.

The primary shallow and deep structural foundation types used in construction shown in cross-section.

The primary components and circuits of a standard residential electrical distribution system from mains supply to household outlets.

Primary driver controls, instruments, and cockpit components in a modern automobile.

Essential anatomical parts, rigging, and sails of a standard modern sloop-rigged sailboat.