Traffic Rules and Road Signs
Traffic law is built on a simple hierarchy: signals from a police officer override traffic lights, traffic lights override signs, and signs override general road markings. Questions love to test this order by placing a green light next to a stop sign or a directing officer. Learn the sign families by shape and colour, because you may be asked to identify a sign from a written description rather than a picture. Triangles warn, circles instruct (red rings prohibit, blue circles usually compel), rectangles inform, and octagons mean stop. Road markings carry equal weight: a solid centre line means no crossing, broken means overtake only when safe, and double white lines with one broken side mean the broken side may cross.
Right-of-way at junctions is the other big topic. At an unmarked equal junction, yield to traffic from your right (in left-hand-drive jurisdictions, the reverse applies - check your local code). When turning across oncoming traffic, you give way. Roundabouts usually require giving way to traffic already circulating. Speed limits, safe following distances, and rules on overtaking, parking, and pedestrian crossings round out the domain - and questions frequently disguise a limit question as a scenario ("in a built-up area with street lights").
Trap: a question may describe a situation where a sign and a marking conflict; the sign wins. Rule of thumb: if in doubt, the more restrictive instruction applies until you can confirm otherwise. Worked example: you approach a junction with a give-way sign but no markings on your road; a car is approaching from your right. The sign tells you to give way, so you slow and prepare to stop - the absence of markings does not grant you priority.