DRTS Light-Vehicle Theory study guide
DRTS Light-Vehicle Theory · Work through your exam, one topic at a time.
The DRTS Light-Vehicle Theory exam is a knowledge test for people who want to drive a car, van, or other light vehicle on public roads, whether as a first-time learner or as a driver moving through a licensing system. It checks whether you can read the road correctly and predict what other people will do before you ever sit behind the wheel unsupervised. The DRTS Light-Vehicle Theory study guide has 8 sections and about 2,537 words.
01Road Signs, Signals, and Markings
Signs fall into three families: regulatory (red/white or black/white, they command - STOP, YIELD, speed limit, no entry), warning (yellow diamond or pentagon, they advise - curves, pedestrian crossings, school zones), and guide/informational (green, blue, or brown, they orient - destinations, services, recreation). Shape carries meaning independent of words: an inverted triangle means yield, an octagon means stop, a pennant marks a no-passing zone, a round sign warns of a railroad crossing ahead, and a crossbuck marks the crossing itself.
332 words, about 2 min02Right-of-Way Rules and Intersections
Right-of-way is never "taken" - it is yielded. At an uncontrolled intersection, the first vehicle to arrive proceeds first; if two arrive at the same time, the vehicle on the right has the right-of-way.
348 words, about 2 min03Speed Limits and Safe Following Distance
Posted limits are maximums for ideal conditions, not targets. You must drive at a speed reasonable for weather, visibility, road surface, traffic density, and your own visibility - the "basic speed law" or "safe speed rule." Common default limits in residential and business districts cluster around 25-30 mph, but always follow posted signs.
325 words, about 2 min04Traffic Laws and Driving Regulations
Candidates must know the core operating statutes: licensing and vehicle registration requirements, mandatory insurance or financial responsibility, seat belt and child restraint rules, and the prohibition on driving without a valid license. Signals are required before turning, changing lanes, and stopping or slowing; most jurisdictions require a signal for a set distance (commonly 100 feet) before a turn.
317 words, about 2 min05Vehicle Safety, Equipment, and Maintenance
A candidate should know the equipment the law requires and how it fails. Required equipment typically includes working headlights (low and high beam), taillights, brake lights, turn signals, hazard flashers, a horn, mirrors, a speedometer, seat belts, and a parking brake.
315 words, about 2 min06Sharing the Road with Other Users
Motorcycles, bicycles, pedestrians, large trucks, and school buses each demand a different mental model. Motorcycles are entitled to a full lane; never share a lane with one, and give extra following distance because their braking and visibility differ from a car's.
299 words, about 1 min07Hazard Awareness and Defensive Driving
Defensive driving is a scanning discipline. Aim your eyes far ahead - roughly 12-15 seconds of travel - and use the mirrors every 5-8 seconds to build a picture of what is behind and beside you.
306 words, about 2 min08Alcohol, Drugs, and Driver Fitness
Alcohol impairs judgment, reaction time, coordination, and vision before a driver feels "drunk." In the United States, a blood alcohol concentration (BAC) of 0.08% is the standard per se limit for drivers 21 and older; commercial drivers are held to 0.04%, and drivers under 21 face zero-tolerance laws, often 0.00-0.02%. Penalties escalate with repeat offenses and high BAC.
295 words, about 1 min