Delaware DMV Practice Test 2025

Delaware § 4177 sets the adult DUI threshold at 0.08% BAC. Drivers under 21 face a 0.02% limit under § 4177L. Commercial motor vehicle operators face 0.04% under § 4177M. Delaware has two aggravated DUI tiers: 0.15% BAC and 0.20% BAC, each triggering enhanced mandatory sentencing. A third DUI offense is a Class G felony under § 4177.

Under Delaware § 2742, refusing a chemical test triggers license revocation: 1st refusal = 1 year; 2nd refusal = 18 months; 3rd or subsequent = 24 months. The officer must issue a 15-day temporary driving permit at the scene. The driver has 15 days to request a hearing. Delaware's 24-month maximum refusal penalty is among the longest in the region.

Delaware § 2710 requires applicants to be at least 16 years old, complete a driver education course at a Delaware public or private high school, and pass a knowledge test. Permit holders must complete 50 supervised driving hours (10 at night) and hold the permit for 12 months before applying for a Class D license. The supervisor must be at least 25 years old and have held a Class D license for 5+ years.

After the first 6 months (during which all driving must be supervised), Delaware permit holders may drive unsupervised from 6 AM to 10 PM. From 10 PM to 6 AM, a supervisor is required. Exceptions exist for work, school, and church activities under § 2710(c)(4).

Delaware § 4802 is PRIMARY enforcement — a police officer may stop a vehicle solely because an occupant is not wearing a seat belt. The civil penalty is $25 with no points assessed. Both the driver and all passengers 16 or older must wear a properly adjusted and fastened seat belt.

Delaware § 4176C prohibits holding a wireless electronic communication device while driving. First offense: $100 civil penalty. Subsequent offenses: $200–$300. Hands-free devices are permitted. Emergency calls to 911 are exempt. No points are assessed for violations.

Delaware § 4169 sets: 25 mph in residential and business areas; 20 mph in school zones (where signs are posted); 50 mph on rural two-lane roads; 55 mph on four-lane divided highways; 65 mph on Route 1 between Red Lion Creek and the Appoquinimink River. The school zone limit applies only where 20 mph signs are posted.

Delaware § 4350 requires dimming high beams within 500 feet of an oncoming vehicle (standard in most states) AND within 200 feet when following another vehicle. Most states use 300 feet for the following-vehicle rule — Delaware's 200-foot requirement is shorter, meaning you must dim sooner when behind another car than drivers in most other states.

Delaware § 4331 requires headlights: from sunset to sunrise; in fog, smoke, or rain; when windshield wipers are in use due to weather conditions; and when visibility ahead is insufficient to see persons or vehicles at 1,000 feet. The wiper-triggered requirement and the 1,000-foot visibility trigger are both commonly tested on the exam.

During the first 12 months of holding a Delaware Level 1 permit, permit holders may carry at most 1 non-family passenger in addition to the required adult supervisor. Immediate family members are exempt from this limit under § 2710(c)(5). Exceeding the passenger limit can result in permit suspension.