October 1, 2026 update: rebuilt the ranking from the current denominator-qualified error census (111,170 anonymized user-question error records) and re-checked every correct answer and statute against the 2026 New Jersey Driver Manual (Revised 4/2026), retrieved October 1, 2026. Right turn on red is a new entry at #9, and the suspended-for-DUI additional-suspension question has dropped out of the top ten (now #11 at 45.8%). The eligibility pool is now restricted to questions that are actually servable, so withdrawn questions can no longer appear in the ranking.

TL;DR

The NJ permit test has 50 questions; you need to answer at least 40 correctly (80%) to pass. Ranked by error rate among questions with at least 500 recorded attempts, these are the 10 questions our users miss most — with the full denominator so you can judge the sample:

#	Topic	Error rate	Wrong / Attempts	Users	Correct answer
1	Improper passing points	52.5%	705 / 1,344	302	4 points
2	Railroad-crossing stop distance	48.1%	433 / 901	251	15 feet
3	Reckless-driving jail maximum	48.0%	589 / 1,226	286	60 days
4	Tailgating points	47.7%	480 / 1,006	260	5 points
5	First-DUI jail maximum	47.2%	477 / 1,010	219	30 days
6	Passing on the right (EXCEPT)	47.0%	572 / 1,216	310	Left-turn-lane option
7	Signals not operating	46.9%	417 / 890	203	All-way stop
8	Ignition interlock period	46.6%	497 / 1,066	252	3 months
9	Right turn on red (new)	46.0%	236 / 513	129	Stop first, then yield
10	Altering a driver's license	45.9%	1,730 / 3,765	1,002	Lose driving privileges

Scroll down for each question with its options, the correct answer, the official rule behind it, and a memory hook.

Our current dataset holds 111,170 anonymized practice-error records from NJ MVC Quiz users preparing for the New Jersey knowledge test — up from the 108,535 cited in the previous version of this article. Unlike textbook advice, this data shows where real people actually get stuck.

These questions share a common pattern: they test precise legal knowledge against your intuition — exact numbers, similar-sounding penalties, and answer choices that blur together under pressure.

1. Improper Passing — 52.5% Error Rate

Question: An improper passing conviction will result in the addition of ___ points to a NJ driving record.

Options: A: 5 | B: 4 | C: 3 | D: 2

Correct answer: B — 4 points

Official rule: The New Jersey Driver Manual's point schedule lists improper passing on the right or off the roadway at 4 points (N.J.S.A. 39:4-85).

This is the exact pairing that trips people up: improper passing and tailgating sound equally serious, so drivers grab 5 points. They aren't equal in the schedule.

Memory trick: Improper passing = 4. It is the lower of the two passing/tailgating numbers.

2. Railroad-Crossing Stop Distance — 48.1% Error Rate

Question: How far should you stop from railroad crossing gates when a train is coming?

Options: A: 10 feet | B: 15 feet | C: 20 feet | D: 25 feet

Correct answer: B — 15 feet

Official rule: The manual says a motorist "must stop at least 15 feet from a railroad crossing when there are flashing red lights, ringing bells, descending or lowered gates, or flag signals" (N.J.S.A. 39:4-127.1). Never cross until the gates are raised, the bells stop, and the lights stop flashing.

Why it's hard: The choices are four nearby round numbers (10/15/20/25), and the rule has two bounds — stop no closer than 15 feet. Pick the middle-low number, not the smallest.

Memory trick: Railroad = 15. Visualize the crossing arm; you stop a full car-length back.

3. Reckless-Driving Jail Maximum — 48.0% Error Rate

Question: A reckless driving conviction could result in up to ___ days in jail for New Jersey drivers.

Options: A: 60 | B: 3 | C: 30 | D: 90

Correct answer: A — 60 days

Official rule: The manual states reckless driving "is punishable by imprisonment of up to 60 days, or by a fine of not less than $50 or more than $200, or both, for a first offense" (N.J.S.A. 39:4-96). Points are also assessed.

Why it's hard: Hold this next to the first-DUI maximum (30 days) and the numbers look swapped by intuition — most people assume DUI should carry more jail than reckless driving, so they pick 30 for reckless. It's the other way around.

Memory trick: Reckless = 60. It is exactly double the first-DUI number.

4. Tailgating Points — 47.7% Error Rate

Question: Tailgating is a dangerous practice that will result in a ___ point addition upon conviction.

Options: A: 3 | B: 2 | C: 5 | D: 4

Correct answer: C — 5 points

Official rule: The manual's point schedule lists tailgating (N.J.S.A. 39:4-89) at 5 points — the highest of the common violations.

Why it's hard: This is the exact flip of #1. Anyone who memorized "improper passing is the big one" applies 4 here instead of 5.

Memory trick: Tailgating = 5 — the higher number, because following too closely is a leading cause of rear-end crashes.

5. First-DUI Jail Maximum — 47.2% Error Rate

Question: The maximum imprisonment for a first DUI offence in the state of New Jersey is ___ days.

Options: A: 60 | B: 90 | C: 10 | D: 30

Correct answer: D — 30 days

Official rule: Under the mandatory first-offense penalties listed with N.J.S.A. 39:4-50 in the Driver Manual (BAC 0.08% or more but less than 0.10%), the term includes "up to 30 days imprisonment," alongside a $250–$400 fine and 12- to 48-hour IDRC participation.

Why it's hard: The choices are 10/30/60/90 and DUI feels like it should be harsh. Many reach for 90. For a first offense the jail maximum is 30 days.

Memory trick: DUI first offense = 30, reckless driving = 60. Lock the pair.

6. Passing on the Right — 47.0% Error Rate

Question: Passing on the right is permitted in all of the following situations, EXCEPT:

Options:

A: On highways that have at least two lanes traveling in each direction
B: When passing a vehicle that is in the left-turn lane
C: On one-way streets where all lanes of traffic move in the same direction
D: When driving in a lane set aside for left-turns

Correct answer: D

Official rule: The manual says "passing on the right is allowed only on roads with more than one lane going in the same direction, if vehicles on the roadway are moving in two or more substantially continuous lines, or when the motorist ahead is making a left turn and there is room to pass. Never pass on the right shoulder of the road." (N.J.S.A. 39:4-85)

Why it's hard: It's an EXCEPT question. Three of the four options describe genuine passing situations; the fourth describes simply being in a left-turn lane, which is not a passing maneuver at all.

Memory trick: When a stem says EXCEPT, find the odd one out — here, a lane you can be in, not a move you can make.

7. Signals Not Operating — 46.9% Error Rate

Question: If the traffic signals at an intersection are not operating, treat the intersection as a(n):

Options: A: Free passing zone | B: All-way stop | C: Blind intersection | D: Uncontrolled intersection

Correct answer: B — All-way stop

Official rule: The manual says to "stop if a signal does not have any of its bulbs working and no one is directing traffic. It is considered a four-way stop sign. Look left and right. Yield to traffic coming from the right or left. Be careful and go only when safe."

Why it's hard: "Uncontrolled intersection" (option D) sounds official and is a real term, but the manual gives a specific instruction: treat it as an all-way stop.

Memory trick: Dead signal = four-way stop. Not "proceed with care."

8. Ignition Interlock Period — 46.6% Error Rate

Question: For a first DUI offense with a BAC of at least 0.08% but less than 0.10%, the ignition interlock device (IID) installation period is:

Options: A: 1 year | B: 1 year from the restoration of driving privileges | C: Six months | D: Three months from the restoration of driving privileges

Correct answer: D — Three months from the restoration of driving privileges

Official rule: The Driver Manual's first-offense table lists the interlock requirement by BAC band: for a first DUI offense on or after December 1, 2019, 0.08% to 0.10% → interlock device for 3 months; higher bands carry longer periods.

Why it's hard: The options blend duration with start point ("from the restoration of driving privileges"), so you have to get both the number and the anchor right.

Memory trick: Lowest BAC band = shortest interlock = 3 months.

9. Right Turn on Red — 46.0% Error Rate (new entry)

Question: Are you allowed to turn right at a red signal?

Options:

A: Yes, this is a "protected" turn so you will have right of way
B: Yes, but only after coming to a stop and yielding to traffic
C: Yes, but only if a sign permits you to do so
D: No, you can never turn right at a red light

Correct answer: B — Yes, but only after coming to a full stop and yielding

Official rule: "Unless a No Turn on Red sign is posted, New Jersey law authorizes a right turn on a red light after a motorist comes to a full stop and checks for traffic. A motorist must yield to all oncoming traffic and pedestrians before turning right at a red light." The manual warns that difficult-to-see vehicles such as bicycles and mopeds may have a green light (N.J.S.A. 39:4-115).

Why it's hard: The two popular wrong answers each invert one half of the rule. Option C ("only if a sign permits") reverses New Jersey's default — here the turn is allowed until a sign takes it away, not forbidden until a sign grants it. That is the opposite of places such as New York City, so drivers who learned there pick C. Option A keeps the permission but drops the duty to stop and yield, which is the part that actually causes crashes.

Memory trick: In New Jersey the sign only ever says no. Red light → full stop → yield → then turn.

10. Altering a Driver's License — 45.9% Error Rate

Question: According to the New Jersey Driver Manual, how can altering a driver's license or presenting an altered driver's license affect your driving privileges?

Options: A: Your driving privileges cannot be affected | B: You can only lose permission to drive at night | C: You may lose your driving privileges | D: You can only lose permission to drive outside New Jersey

Correct answer: C — You may lose your driving privileges

Official rule: The manual states that obtaining or presenting an altered driver license or non-driver identification card "may result in loss of driving privileges, fines up to $1,000, and/or..." imprisonment.

Why it's hard: This is by far the most-attempted question on our list (3,765 attempts, 1,002 distinct users) and still misses 45.9% of the time — the wording invites over-thinking about fines versus jail instead of the tested consequence: loss of driving privileges.

Memory trick: Alter the license → lose the license.

Just outside the top ten

The suspended-for-DUI additional-suspension question (N.J.S.A. 39:3-40(f)(2) — at least 1 year but no more than 2 years) was #10 in the previous version and is now #11 at 45.8% (1,694 / 3,701, 962 users). It is still worth knowing: the neighbouring bodily-injury provision, 39:3-40(e), carries a minimum 45-day jail term, so drivers who half-remember the statute grab the wrong provision's number.

How we ranked these

Source: anonymized NJ MVC Quiz practice records (user_progress), snapshot October 1, 2026 — 111,170 user-question error rows, totalling 150,565 wrong answers across 419,163 attempts. The practice census contains 642 distinct question IDs with at least one recorded error, including questions since withdrawn from circulation.
Bank size: 636 questions are currently servable. The data file keeps 644 rows so that IDs stay contiguous and saved progress keeps resolving; 8 of those rows are quarantined and never served.
Metric: error rate = wrong answers ÷ total attempts, per question, computed from the raw counts rather than a rounded stored rate. Ranking uses the unrounded rate, so two rows that display the same percentage are still ordered correctly.
Denominator floor: only questions with at least 500 recorded attempts are eligible to rank. Without a floor, a question seen a dozen times could top the list on noise. 306 of the 636 servable questions currently qualify.
Servable-only eligibility: withdrawn (quarantined) questions are excluded from the ranking even when they have enough historical attempts, so every entry is a question you can actually be shown. Five quarantined questions met the attempt floor this cycle and were removed.
Not an official result: these are practice misses by our users, not NJ MVC exam scores. They show where practice goes wrong, not a statewide failure rate.

Practice These Questions Now

All of these questions are in our free practice database. To drill the high-error-rate questions specifically, they're flagged as error-prone in Smart Mode — the system prioritizes showing them to you.

Related guides:

Data source: 111,170 anonymized practice-error records from NJ MVC Quiz users, snapshot October 1, 2026. "Wrong answers" is the sum of incorrect attempts across all users; "attempts" is wrong plus correct answers. Error rates are calculated per question across all attempts. Correct answers and statutes re-verified against the 2026 New Jersey Driver Manual (Revised 4/2026), retrieved October 1, 2026.

新泽西驾照笔试最难的10道题（中文版）

以下按错误率排序（仅统计作答次数 ≥ 500 的题目），列出我们用户最容易答错的 10 道题，并附完整分母。

#	题目主题	错误率	答错 / 作答	用户数	正确答案
1	不正确超车扣分	52.5%	705 / 1,344	302	4 分
2	铁路道口停车距离	48.1%	433 / 901	251	15 英尺
3	鲁莽驾驶最高拘役	48.0%	589 / 1,226	286	60 天
4	跟车过近扣分	47.7%	480 / 1,006	260	5 分
5	首次酒驾最高监禁	47.2%	477 / 1,010	219	30 天
6	右侧超车（EXCEPT）	47.0%	572 / 1,216	310	左转车道选项
7	信号灯失灵	46.9%	417 / 890	203	各方停车
8	点火互锁装置期限	46.6%	497 / 1,066	252	3 个月
9	红灯右转（新入榜）	46.0%	236 / 513	129	先停车再让行
10	篡改驾照后果	45.9%	1,730 / 3,765	1,002	失去驾驶资格

题目 1：超车违规扣分 — 52.5% 错误率

题目： 不正确超车将在驾驶记录上增加多少分？选项：A 5 / B 4 / C 3 / D 2

正确答案：B — 4 分

官方依据： 《新泽西州驾驶手册》扣分表将「右侧或路外不正确超车」列为 4 分（N.J.S.A. 39:4-85）。

记忆技巧： 超车 = 4 分，是「超车/跟车」这对数字里较低的一个。

题目 2：铁路道口停车距离 — 48.1% 错误率

题目： 火车通过时，应停在离栏杆多远以外？选项：A 10 / B 15 / C 20 / D 25 英尺

正确答案：B — 15 英尺

官方依据： 手册规定，道口有闪红灯、响铃或栏杆放下时，驾驶人「必须停在距铁路道口至少 15 英尺处」（N.J.S.A. 39:4-127.1）。在栏杆抬起、铃停、灯灭之前不得通过。

记忆技巧： 铁路 = 15 英尺。

题目 3：鲁莽驾驶最高拘役 — 48.0% 错误率

题目： 新泽西司机被判鲁莽驾驶可拘役多少天？选项：A 60 / B 3 / C 30 / D 90

正确答案：A — 60 天

官方依据： 手册规定鲁莽驾驶「可处最高 60 天监禁，或罚款 50 至 200 美元，或两者并罚」（N.J.S.A. 39:4-96），并计扣分。

记忆技巧： 鲁莽 = 60 天，正好是首次酒驾（30 天）的两倍。

题目 4：跟车过近扣分 — 47.7% 错误率

题目： 跟车过近（tailgating）违规将增加多少分？选项：A 3 / B 2 / C 5 / D 4

正确答案：C — 5 分

官方依据： 手册扣分表将跟车过近列为 5 分（N.J.S.A. 39:4-89），是常见违规里最高的一档。

记忆技巧： 跟车过近 = 5 分（比超车高）。

题目 5：首次酒驾最高监禁 — 47.2% 错误率

题目： 新泽西州首次酒驾最高监禁多少天？选项：A 60 / B 90 / C 10 / D 30

正确答案：D — 30 天

官方依据： 首次违法（血液酒精浓度 ≥ 0.08% 且 < 0.10%）的强制处罚含「最高 30 天监禁」，另有 250–400 美元罚款及 12 至 48 小时的酒驾者资源中心（IDRC）课程（N.J.S.A. 39:4-50）。

记忆技巧： 酒驾首犯 = 30 天，鲁莽 = 60 天，成对记忆。

题目 6：右侧超车（EXCEPT） — 47.0% 错误率

题目： 下列情况均允许右侧超车，除了：

选项： A 每个方向至少有两条车道的高速公路 | B 超越处于左转弯车道的车辆时 | C 所有车道同向行驶的单行道 | D 在留出的左转车道上行驶时

正确答案：D

官方依据： 手册规定右侧超车「只允许在同向多于一条车道的道路上，车辆排成两条以上连续车流时，或前车正在左转且有空间通过时」；「绝不可从右侧路肩超车」（N.J.S.A. 39:4-85）。

记忆技巧： 题干出现 EXCEPT，就找那个不属于「超车动作」的选项——D 是「处在某车道」，不是超车。

题目 7：信号灯失灵 — 46.9% 错误率

题目： 十字路口信号灯不工作，应将该路口视为？选项：A 自由通行区 | B 各方停车 | C 不易看清的路口 | D 不受控制的路口

正确答案：B — 各方停车（all-way stop）

官方依据： 手册规定「信号灯全部不亮且无人指挥交通时，应停车。该路口视为四向停车标志。左右观察，让行，确认安全后再通过」。

记忆技巧： 信号灯坏了 = 四向停车，别当成「谨慎通过」。

题目 8：点火互锁装置期限 — 46.6% 错误率

题目： 首次酒驾、血液酒精浓度 ≥ 0.08% 但 < 0.10% 时，点火互锁装置（IID）安装期是？选项：A 1 年 | B 恢复驾驶权起 1 年 | C 6 个月 | D 恢复驾驶权起 3 个月

正确答案：D — 从驾驶权恢复之日起 3 个月

官方依据： 手册首次违法表格按浓度分档：2019 年 12 月 1 日及以后，0.08%–0.10% → 互锁装置 3 个月；浓度更高则期限更长。

记忆技巧： 最低浓度档 = 最短期限 = 3 个月。

题目 9：红灯右转（新入榜） — 46.0% 错误率

题目： 你可以在红灯时右转吗？

选项：

A：是的，这是一个「受保护」的转弯，所以你将有路权
B：是的，但只有在停车和让行后才可以
C：是的，但只有在标志允许你这样做的情况下
D：不，你永远不能在红灯前右转

正确答案：B — 先完全停车并让行，然后才可右转

官方依据： 手册规定「除非设有 No Turn on Red（禁止红灯右转）标志，新泽西州法律允许机动车在完全停车并观察交通后红灯右转。右转前必须让行于所有对向来车和行人。」手册并提醒：自行车、助力车等不易察觉的车辆可能正处于绿灯（N.J.S.A. 39:4-115）。

为什么难： 两个高频错误选项各自推翻了规则的一半。选项 C「只有标志允许才可以」把新泽西的默认规则反了过来——本州是默认允许、由标志取消，而不是默认禁止、由标志授权；纽约市等地恰好相反，所以在那些地方学过车的人会选 C。选项 A 保留了「可以转」，却丢掉了「必须停车让行」这个真正避免事故的义务。

记忆技巧： 在新泽西，标志只会说「不许」。 红灯 → 完全停车 → 让行 → 再右转。

题目 10：篡改驾照后果 — 45.9% 错误率

题目： 根据手册，篡改或出示被篡改的驾照，可能对驾驶资格造成什么后果？选项：A 不受影响 | B 只失去夜间驾驶资格 | C 可能失去驾驶资格 | D 只失去州外驾驶资格

正确答案：C — 可能失去驾驶资格

官方依据： 手册指出，取得或出示被篡改的驾照或身份证件「可能导致丧失驾驶资格、最高 1,000 美元罚款及/或……监禁」。

记忆技巧： 改了驾照 → 丢掉驾照。

刚好落榜

停照期间驾车加罚那道题（N.J.S.A. 39:3-40(f)(2) —— 至少 1 年、最多 2 年）上一版排第 10，本次降为第 11 名、45.8%（1,694 / 3,701，962 位用户）。它仍然值得记：相邻条款 39:3-40(e)（造成人身伤害）规定的是最低 45 天监禁，所以只记得「39:3-40」这个号码的人，很容易抓错条款的数字。

The 10 Hardest NJ Permit Test Questions (2026) — Based on 111,000+ Real Answers