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Driver Safety — New Jersey Driver's License Practice Test

Driver SafetyQuestion 1 of 30

38 questions in this topic · 30 drawn at random this round

What do white lines on the roadway indicate?

New Jersey Driver Manual

All questions are based on the official New Jersey Driver Manual (NJ MVC). Study the relevant chapter to reinforce your knowledge.

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This New Jersey Driver's License Driver Safety practice set has 38 practice questions based on the official exam materials, each with an instant explanation. You need 80% on the real New Jersey Driver's License knowledge test to pass.

Topic overview

This chapter covers traffic signals, signs, and road markings — the visual language that keeps roadways safe. Vertically mounted signals always show red on top, yellow in the middle, and green (or a green arrow) on the bottom; horizontally mounted signals show red on the left. An intersection with an unlit or malfunctioning signal must be treated as a four-way stop.

The most heavily tested material is sign categories and colors: warning signs are yellow diamonds, regulatory signs (like STOP and YIELD) are typically red or have red borders, and guidance signs use blue or green backgrounds. Road markings carry the same legal force as signs — a solid yellow line on a driver's side means no passing, while a dashed line means passing is permitted when safe. Work zones double all traffic fines.

A common mistake is treating flashing signals casually — a flashing red light means a full stop (like a stop sign), while a flashing yellow light means slow down and proceed with care; these are not the same instruction. The chapter also explains rumble strips (they alert, not damage, a vehicle) and roundabouts, which reduce crashes by eliminating left-turn conflicts.

What does a flashing red light mean at an intersection?

The driver must come to a complete stop, yield to traffic and pedestrians, and go only when it is safe — the same as a stop sign.

What color and shape are warning signs?

Warning signs are yellow and diamond-shaped, alerting drivers to hazards ahead that are difficult to see.

What happens to traffic fines in a highway work zone?

Speeding and other moving-violation fines are doubled in New Jersey work zones.

Written from the official New Jersey Driver Manual — Driver Safety ↗· Last checked: 2026-07-10· Reviewed by the PassPrep editorial team· How we verify →

Sample questions

Three questions from the Driver Safety bank with the correct answer and an explanation. The practice quiz above draws 30 questions at random from the same bank.

During heavy traffic or an emergency, a police officer directs traffic with signals that conflict with the traffic light. What must a motorist do?
- Obey the police officer's directions — Correct answer
- Obey the traffic light, since signals outrank officers
- Stop completely until the light turns green
- Choose whichever instruction is more convenient
Explanation: A police officer can overrule traffic signals, and law enforcement orders or directions must always be obeyed.
Handbook: Driver Safety — Police Directing Traffic
When traffic signals are hung vertically, where is the red light located?
- On top — Correct answer
- In the center
- On the bottom
- On the left
Explanation: On vertical signals the red light is always on top, the yellow in the center, the green third, and a green arrow on the bottom.
Handbook: Driver Safety — Traffic Signals
What does a steady red light require a motorist to do?
- Stop before the intersection or crosswalk and stay stopped until the light turns green — Correct answer
- Slow down and proceed with caution
- Stop, then go when safe
- Yield to oncoming traffic and continue
Explanation: A red light means stop before the intersection or crosswalk and remain stopped until the light changes to green.
Handbook: Driver Safety — Red Light