Free, full New York CDL general knowledge test practice right here in your browser — real exam format (50 questions, 80% to pass), diagnostic and adaptive modes, spaced-repetition review, and a readiness dashboard. No signup, no paywall — your progress is saved automatically on this device.
The purpose of the air storage tanks (reservoirs) in an air brake system is to:
A. Hold enough compressed air for several brake applications if the compressor stops — Reservoirs store enough compressed air to apply the brakes several times even if the compressor fails, giving a safety reserve.
Overloading your vehicle can lead to:
D. Brake failure, tire blowouts, and structural damage — Overloading puts excessive stress on brakes, tires, suspension, and frame, leading to potential failures.
Which of these statements about speed management is true?
D. Loaded trucks take longer to stop than empty trucks — Loaded trucks take longer to stop due to increased weight. More weight means more energy to dissipate when braking.
If you are being tailgated, you should:
D. Increase your following distance from the vehicle ahead — If tailgated, increase your following distance from the vehicle ahead. This gives you more room to slow down gradually, helping the tailgater too.
Before driving a bus, you must:
A. Ensure all passengers are seated and have seatbelts fastened where required — Ensure passengers are seated properly. Where seat belts are required, confirm all passengers have them secured before driving.
Exhaust system leaks are dangerous because they can:
D. Let toxic fumes into the cab — Exhaust leaks allow carbon monoxide (CO) — an odorless, colorless gas — to seep into the cab. CO causes drowsiness, impaired judgment, and can be fatal. Any exhaust leak found during pre-trip inspection is an out-of-service condition.
CDL safety scenario 38: When checking your CDL vehicle before a trip, which item must be secure before you move?
A. Cargo, doors, and emergency equipment — Cargo, doors, and emergency equipment. Commercial drivers are expected to manage this situation before it becomes a crash risk. The CDL manual emphasizes controlling the vehicle, inspecting safety-critical systems, and correcting hazards promptly.
During the in-cab inspection, you should check that:
A. Gauges, warning lights, horn, wipers, and mirrors all function properly — Confirming gauges, lights, horn, wipers, and mirrors work ensures you can monitor the vehicle and be seen and heard while driving.
Under the 60/70-hour rule, a driver whose company operates every day of the week may not drive after being on duty:
D. 70 hours in any 8 consecutive days — If the carrier runs every day, a driver may not drive after 70 hours on duty in any 8 consecutive days until hours rebuild.
Hazardous materials route restrictions generally require drivers to:
D. Follow designated routes and avoid restricted tunnels, bridges, and populated areas where required — Hazmat drivers must follow designated routes and obey local restrictions that keep dangerous loads away from tunnels, crowds, and sensitive areas.
The New York CDL general knowledge test has 50 questions, and you need 80% to pass — at least 40 correct answers. The practice tests on this page use the same format. The 80% passing score is a federal FMCSA standard used by every state.
80%. You can miss at most 10 of the 50 questions. The readiness dashboard on this page tracks whether you're consistently scoring above that bar.
Yes. Every practice test on this page and everything in the DMVPrep iPhone app is free — no ads, no paywall, no account.
Federal motor carrier safety regulations (FMCSA) — the same rules every state's CDL exam is drawn from. Every question in the DMVPrep app cites the regulation or handbook section it comes from.
Yes — the DMVPrep app includes all 3,745+ questions in Spanish, and the whole app works in Spanish.