Greece Category D Theory study guide
Greece Category D Theory · Work through your exam, one topic at a time.
The Greek Category D theory examination is the knowledge test that candidates must pass to obtain a professional bus driving licence (άδεια οδήγησης Κατηγορίας Δ) in Greece. It is aimed at drivers who intend to work professionally with buses, including urban and interurban passenger transport, and it assumes a solid grounding in ordinary car driving rules before the heavier vehicle categories are addressed. The Greece Category D Theory study guide has 8 sections and about 4,127 words.
01Traffic Law and Road Signs
This domain tests your command of the Greek Highway Code (Κώδικας Οδικής Κυκλοφορίας, ΚΟΚ - Law 2696/1999 as amended), the signals of traffic officials, the meaning of each sign family, road markings, and the priority rules that decide who moves first. Questions are usually short scenarios: a bus at a junction, a sign you must identify from a description, or an obligation or penalty point.
402 words, about 2 min02Road Safety and Hazard Perception
Hazard perception questions test whether you read the road ahead as a bus driver: how far you can see, how quickly a loaded coach stops, where pedestrians and cyclists appear without warning, and how weather and fatigue degrade your judgement. The examiner wants anticipation, not reaction.
434 words, about 2 min03Vehicle Categories
This domain checks that you know which licence category covers the vehicle you are paid to drive, exactly where the category boundaries lie, and which age limits, medical conditions and professional qualifications attach to a Category D licence in Greece. D: motor vehicles designed and built to carry more than 8 passengers in addition to the driver.
417 words, about 2 min04Weights, Dimensions and Loads
This domain covers the legal size and mass limits for buses and coaches, how loads must be distributed and secured, and the practical arithmetic a driver does before departure. Expect questions that give you a vehicle, a passenger number and a luggage weight and ask whether it may move.
403 words, about 2 min05Driver Hours, Rest Periods and Tachograph
This domain tests Regulation (EC) 561/2006 as amended by Regulation (EU) 2020/1054, plus the tachograph rules that record compliance. Categories are unforgiving: a driver who misjudges a weekly total or takes a break in the wrong order fails.
409 words, about 2 min06Vehicle Mechanics, Maintenance and Pre-Trip Checks
This domain covers the daily walk-around, the systems that fail dangerously on a bus, and the paperwork that proves the vehicle is fit to carry passengers. The examiner asks what you check, what reading is acceptable, and what you do when it is not.
399 words, about 2 min07First Aid, Emergencies and Accident Procedure
This domain tests what you do in the first minutes after a collision or a medical emergency on board: protecting the scene, calling for help, giving basic life support within your competence, and meeting the legal duties that follow a crash in Greece. Stop safely, switch on hazard lights, put on a high-visibility vest before leaving the vehicle, and place the warning triangle where approaching traffic will see it - much further back on a motorway than on a country road.
415 words, about 2 min08Environmental Driving and Fuel Efficiency
This domain tests eco-driving as a professional skill: how your driving style, vehicle loading and route planning affect fuel burn, emissions and noise, and which habits the examiner expects you to reject as myths. Read the road 12–15 seconds ahead, lift off early for red lights and junctions, and avoid stop-start driving.
1,248 words, about 6 min