Test 4 of 10 · 20 questions · Free 2026
NJ Permit Practice Test 4
A fixed 20 question set from the New Jersey bank with answers and plain English explanations. The real NJ exam is 50 questions, 80 percent to pass; take the full length version on the main practice page.
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Fixed test, 20 questions · Verified against the Driver's Handbook · Free
Real format: 50 questions, 40 correct to pass.
Test 4 has 20 questions. Every question explains itself the moment you answer.Fixed test: retakes serve these exact questions, handy for studying test by test.
All 20 questions in test 4
Every question below comes from the New Jersey question bank on this page. Open a question to see the correct answer and the explanation. Nothing here is hidden behind a signup.
1. What are New Jersey warning signs for?
- License renewal fees and document requirements
- Parking payment instructions at municipal meters
- Information about motorist services only
- Road conditions that need caution and specific hazards
Show answer
Road conditions that need caution and specific hazards. New Jersey warning signs identify road conditions that need caution and specific hazards encountered during road operations. They alert drivers to situations that may require slower speed, extra attention, or a changed path. License paperwork and parking fees belong to administrative or local rules, while motorist services are identified by guidance signs. Do not wait until the hazard is directly ahead. Read the warning early, scan for the named condition, and adjust speed and position before reaching it.
2. What must a New Jersey motorist always obey?
- The flow of traffic even when it exceeds the limit
- The speed limit
- An advisory speed as a mandatory minimum
- A 50 mph value regardless of road conditions
Show answer
The speed limit. The manual states that a motorist must always obey the speed limit. Keeping pace with traffic is acceptable only at a legal speed, and an advisory speed is not a mandatory minimum. A posted number such as 50 mph sets the legal ceiling for that location, but weather, traffic, and road hazards can require a slower speed. The cue on the pictured SPEED LIMIT sign is the word limit: it marks an upper boundary, not a promise that the same speed is safe in every condition.
3. How is a roundabout described in the New Jersey manual?
- A four-way stop with no circulating roadway
- A railroad crossing controlled by a crossbuck
- A divided highway where U-turns are required
- A one-way, circular intersection around a center island
Show answer
A one-way, circular intersection around a center island. A roundabout is a one-way, circular intersection in which traffic flows around a center island. That design is different from a conventional four-way stop, a railroad crossing, or a divided highway. Drivers should follow the circulating roadway and use the entry and exit lanes rather than cut across the center island. The keep-right image is a useful visual cue for staying on the proper side of the central obstruction, but the defining feature in the manual is the one-way circular intersection.
4. At a New Jersey railroad crossing, what does the white X-shaped crossbuck require?
- Stop only if a gate is lowered
- Yield the right-of-way to trains
- Speed up before a train reaches the crossing
- Treat the sign as a no-passing warning for cars
Show answer
Yield the right-of-way to trains. A crossbuck is the railroad crossing sign with the same meaning as a YIELD sign. Motorists must always yield right-of-way to trains, whether or not a gate is down. Waiting for an active warning device before yielding would leave the driver exposed to a train at a passive crossing. Trains cannot swerve to avoid a vehicle, so the crossbuck should prompt a deliberate check of the tracks and a safe wait.
5. What does the round yellow railroad sign warn of in New Jersey?
- A railroad crossing behind the vehicle
- A station where parking is required
- A railroad crossing ahead
- A crossing reserved for pedestrians only
Show answer
A railroad crossing ahead. The yellow circular RR advance-warning sign announces a railroad crossing ahead. It gives the driver time to reduce speed, look for trains, and avoid entering the crossing without room to clear it. A crossbuck marks the crossing itself, so confusing those two signs reverses their locations. The round shape is the key study cue: yellow and circular means prepare for the railroad crossing that is still ahead on the roadway.
6. A yellow-green five-sided sign appears near a New Jersey roadway. What does it identify?
- A school zone or school crossing
- A railroad crossing itself
- A no-passing zone
- A temporary construction detour
Show answer
A school zone or school crossing. The five-sided pentagon is reserved for school signs. It alerts the motorist to a school zone or school crossing, where children may be present and careful speed control is essential. Railroad signs use an X or a round yellow advance-warning shape, while no-passing signs use a yellow pennant. The pentagon’s unusual five-sided outline is the fastest way to separate a school warning from the other yellow sign families.
7. What hazard does the yellow pedestrian-crossing sign warn a New Jersey driver about?
- Pedestrians are prohibited from the area
- A sidewalk ends and vehicles have priority
- People may be crossing ahead
- Only bicyclists may cross the roadway
Show answer
People may be crossing ahead. A pedestrian warning sign calls attention to a crossing area where people may enter the roadway. It does not prohibit pedestrians, remove their crossing rights, or convert the space into a bicycle-only route. New Jersey’s manual emphasizes that warning signs alert drivers to hazards that can be difficult to see. The practical response is to scan the sides of the road, reduce speed as needed, and be ready to yield.
8. What kind of roadway information do New Jersey warning signs provide?
- Caution about road conditions and specific hazards
- A destination and route to a service facility
- A general license renewal deadline
- A parking fee schedule
Show answer
Caution about road conditions and specific hazards. Warning signs alert motorists to road conditions that need caution and to specific hazards that may arise during roadway operations. They are not route directories, licensing notices, or payment schedules. The pictured signal-ahead symbol is one example of advance warning, so the driver should anticipate a traffic control device and prepare to respond. The broader study cue is the yellow diamond shape and black symbol or wording used for many warnings: they tell you to prepare for what is ahead.
9. What color and shape generally identify New Jersey warning signs?
- White and rectangular with a green route number
- Yellow and diamond-shaped with a black symbol or word message
- Blue and circular with a white service symbol
- Orange and triangular with a slow-moving vehicle symbol
Show answer
Yellow and diamond-shaped with a black symbol or word message. The manual says warning signs are yellow and diamond-shaped, with a black symbol or word message. That format distinguishes a warning from a white regulatory sign, a blue motorist service sign, and the fluorescent orange triangle used for slow-moving vehicles. The pictured STOP AHEAD sign is an advance warning, not the actual stop point. Use the color and shape as the first recognition step, then read the symbol to identify the condition that requires extra attention.
10. What temporary conditions can orange road work signs warn about?
- Only permanent speed limits on rural highways
- A vehicle's registration expiration date
- The location of every railroad crossing
- Lane closings, lane shifts, flaggers, uneven pavement, and detours
Show answer
Lane closings, lane shifts, flaggers, uneven pavement, and detours. Orange, diamond-shaped road work signs can warn about lane closing, lane shifts, flaggers, uneven pavement, and detours. These conditions may temporarily change traffic patterns, so drivers should read the signs, follow directions, and be ready to slow or stop. The merge image may resemble a work-zone lane change, but an orange work sign is the temporary warning category. A permanent speed limit, registration date, or railroad location requires a different sign or document.
11. What should a motorist do after reading a road work warning sign?
- Accelerate before the lane pattern changes
- Ignore the sign if no worker is visible
- Follow the directions and prepare to slow down or stop
- Stop in the active travel lane immediately
Show answer
Follow the directions and prepare to slow down or stop. The manual directs motorists to always read road work signs, follow directions, and prepare to slow down or stop. Preparation gives the driver time to respond to a lane reduction or other temporary change without an abrupt maneuver. Accelerating toward a narrowing lane increases conflict, and the absence of a visible worker does not cancel the warning. Stopping in an active lane creates another hazard unless a flagger or sign directs it. The lane-reduction image reinforces the need to anticipate the change early.
12. Two opposing arrows appear on a yellow New Jersey warning sign. What change should you anticipate?
- Two-way traffic begins
- A divided highway begins
- Passing is permitted in both directions
- The road becomes one-way
Show answer
Two-way traffic begins. Opposing arrows warn that two-way traffic begins, often where a one-way section is ending. The sign does not announce a divided highway, which uses a different split-arrow symbol, and it does not grant permission to pass. Nor does it continue one-way operation. After seeing the warning, expect vehicles approaching from the opposite direction and keep a proper position on the right side of the roadway.
13. What legal force do New Jersey road markings have?
- Only advisory force when traffic is light
- Force only for commercial drivers
- The same force of law as signs or traffic signals
- No force unless a police officer is present
Show answer
The same force of law as signs or traffic signals. New Jersey treats road markings as legally binding controls, giving them the same force of law as signs or traffic signals. A driver cannot ignore a line or arrow because traffic is light, and the rule applies to ordinary motorists as well as commercial drivers. The pictured divided-highway symbol is a useful reminder that roadway separation must be respected, but the legal principle covers markings throughout the road system. Check the color, pattern, and placement before crossing or changing lanes.
14. What do New Jersey road work signs alert motorists to?
- Temporary roadway conditions such as lane shifts and detours
- Permanent license restrictions
- The current color of a traffic signal
- A guaranteed dry road surface
Show answer
Temporary roadway conditions such as lane shifts and detours. Road work signs alert motorists to temporary roadway conditions, including lane closings, lane shifts, flaggers, uneven pavement, and detours. These changes can alter the normal traffic pattern, so a driver should read the sign and prepare for a slower or different path. The pictured slippery-road symbol is retained as a sign-study image, but the tested fact here concerns temporary work-zone information. A permanent license rule, signal color, or dry surface is not what an orange work sign communicates.
15. A yellow curved-arrow sign appears before a New Jersey roadway bend. What should the driver do?
- Turn only at the next intersection
- Follow a detour around construction
- Accelerate until the curve is complete
- Slow down before entering the curve
Show answer
Slow down before entering the curve. A curved-arrow warning identifies a bend in the road and gives the driver time to prepare. Slowing before entering helps maintain control; waiting until the vehicle is already turning makes the adjustment more abrupt. The symbol is not a mandatory direction sign for an intersection and does not indicate a construction detour. Let the warning shape your speed before the curve, then maintain a steady path through it.
16. How does the New Jersey manual distinguish a speed hump from a speed bump?
- A speed hump is shorter and more raised
- A speed hump is longer and flatter
- A speed hump is a painted lane divider
- A speed hump marks a railroad crossing
Show answer
A speed hump is longer and flatter. The manual describes a speed hump as a longer, flatter version of a speed bump, which is more raised. Both are roadway devices intended to slow cars, but their shape and length differ. The sharp-turn image is retained for this sign topic, while the tested fact comes from the speed-control section. Do not confuse a hump or bump with a painted center line or a railroad warning. Slow before reaching either device and follow the surrounding traffic controls.
17. What kinds of hazards can New Jersey warning signs identify?
- Only toll booths and route numbers
- Only vehicle inspection stations and rest areas
- Only lane-use rules printed on white signs
- Road conditions, deer crossings, railroad crossings, school crossings, or curved roadways
Show answer
Road conditions, deer crossings, railroad crossings, school crossings, or curved roadways. The manual says warning signs can alert motorists to road conditions, deer crossings, railroad crossings, school crossings, or curved roadways. These signs call for attention and caution because the roadway or nearby hazard may change how a driver should proceed. Route guidance and motorist services belong to other sign categories. The narrow choices also omit several hazards named in the manual. When a yellow warning sign appears, scan ahead, reduce speed when needed, and prepare for the condition it identifies.
18. A yellow diamond with a black plus sign warns of what?
- A hospital entrance
- A crossroad
- A no-passing zone
- A lane ending at the shoulder
Show answer
A crossroad. The plus-shaped warning represents a crossroad, where vehicles may enter from either side ahead. Scan both directions, adjust speed, and prepare for crossing or turning traffic. A hospital is a service symbol, while a no-passing restriction uses roadway markings or a pennant. A lane ending has a merge or lane-reduction symbol. The plus sign announces an upcoming intersection; it does not itself grant priority or require a turn.
19. What do road work signs alert New Jersey motorists to?
- A variety of temporary roadway conditions
- Permanent route destinations only
- Railroad schedules at crossings
- Parking rules in residential districts
Show answer
A variety of temporary roadway conditions. Road work signs alert motorists to temporary roadway conditions created by construction or maintenance. The manual specifically directs drivers to watch for lane closings, lane shifts, flaggers, uneven pavement, and detours. A destination sign is guidance information, a railroad schedule is unrelated, and a residential parking rule is not a work-zone message. Treat orange work-zone signs as an advance cue to control following distance, expect changing traffic patterns, and be ready to slow or stop.
20. When a traffic signal shows a green arrow alone, what may the driver do?
- Travel in any direction after stopping
- Ignore the arrow and follow the next red signal
- Proceed only as shown by the arrow and yield to pedestrians
- Enter only after another car moves
Show answer
Proceed only as shown by the arrow and yield to pedestrians. A green arrow authorizes movement only along its displayed direction. It is not permission to select another turn or lane, and another vehicle does not determine whether the movement is allowed. The driver still watches for pedestrians in the crossing path. Read the arrow as a directional instruction, then proceed carefully when the route is clear. The signal controls direction, not careful observation.
Compare with the official New Jersey sample questions: New Jersey Driver Manual. Need paper? Printable NJ practice test with answer key.
Frequently asked questions
How many questions are on this New Jersey practice test?
This fixed set has 20 questions. It is test 4 of 10 from the 200 question New Jersey bank. The real NJ exam asks 50 questions and you need 40 correct.
What is the passing score for the real New Jersey test?
80 percent, or 40 of the 50 questions, must have correct answers That figure comes from the official New Jersey source cited on the DMV facts page.
How does this fixed test relate to the full New Jersey bank?
Each numbered test is a fixed set of 20 questions in a fixed order, so you can retake the same test later and compare. Tests 1 to 10 together cover every question in the New Jersey bank once. The full practice page mixes the whole bank at random.
Last verified 2026-09-05. See the New Jersey DMV facts page for sourced state details.
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