100+ Free Vietnam GPLX C Practice Questions

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Not published by CSGT/MPS in the reviewed official source pages Pass Rate

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Question 1

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What does a circular speed-limit sign show?

The minimum following distance in meters

The recommended tire pressure

The number of vehicles allowed in a convoy

The maximum speed allowed where the sign applies

to track

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2026 Statistics

Key Facts: Vietnam GPLX C Exam

Category C Theory Questions

CSGT 2025 guidance

600

Official Question Bank

CSGT 2025 guidance

Serious Unsafe-Traffic Question Per Test

CSGT 2025 guidance

>7,500 kg

Category C Vehicle Mass Scope

2025 licence-category source

B/C1

Lower Categories Included

2025 licence-category source

14 / 11

Road-Sign / Sa-Hinh Questions

CSGT 2025 guidance

Vietnam GPLX C is a 40-question heavy-truck theory test under the 2025 CSGT/MPS question-bank structure. Category C covers trucks and special-use vehicles over 7,500 kg and includes B/C1 vehicles. The official Category C test draws from the 600-question bank and includes exactly one serious unsafe-traffic question that fails the theory test if answered incorrectly. The official distribution is 10 general traffic-rule questions, 1 serious unsafe-traffic question, 1 culture/ethics/rescue/fire-safety question, 2 driving-technique questions, 1 vehicle-construction and repair question, 14 road-sign questions, and 11 sa-hinh questions.

Sample Vietnam GPLX C Practice Questions

Try these sample questions to test your Vietnam GPLX C exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under Vietnam's 2025 driver-license categories, what vehicle scope best describes Category C?

A.Trucks and special-use vehicles over 7,500 kg, with lower B and C1 vehicles included

B.Motorcycles up to 125 cm3 and low-power electric motorcycles only

C.Passenger vehicles with more than 29 seats only

D.Cars with automatic transmission only

Explanation: Category C is the heavy goods category in the 2025 Vietnamese license structure. It covers trucks and special-use vehicles over 7,500 kg and also includes the lower B and C1 vehicle scopes.

2Which lower vehicle categories are included within the 2025 Category C license scope?

A.Only A1 motorcycles

B.Only D passenger buses

C.B and C1 vehicles

D.Only three-wheeled motorcycles

Explanation: The official 2025 scope for Category C includes the lower B and C1 categories. A Category C candidate still needs to understand the rules that apply to those lighter vehicle classes.

3How many theory questions are used on the 2025 Category C GPLX theory test according to the CSGT guidance?

A.25 questions

B.35 questions

C.40 questions

D.60 questions

Explanation: The 2025 CSGT guidance states that the Category C theory test uses 40 questions drawn from the official 600-question bank. This practice bank is larger so you can rehearse across the full topic range.

4What is the special effect of the serious unsafe-traffic question in a Category C theory test?

A.It is optional and does not affect the result

B.It counts only as a road-sign question

C.It fails the theory test if answered incorrectly

D.It is used only for driver-school grading

Explanation: The official 2025 guidance says the Category C test includes one serious unsafe-traffic question. Answering that question incorrectly causes failure of the theory test, regardless of performance on the other questions.

5Which topic set is part of the official Category C theory-test coverage?

A.Aircraft navigation, maritime signals, and rail dispatching

B.General rules, serious unsafe situations, signs, driving technique, vehicle construction, and sa-hinh handling

C.Only truck repair procedures

D.Only road signs and no traffic-situation questions

Explanation: The Category C theory test is broad. It covers general traffic rules, serious unsafe situations, culture and rescue awareness, driving technique, construction and repair, road signs, and sa-hinh traffic-situation handling.

6The 2025 CSGT guidance says Category C questions are drawn from what official source?

A.A bank of 600 road-motor-vehicle theory questions

B.A private driver-school workbook only

C.A local city taxi exam only

D.An aircraft-pilot theory bank

Explanation: Category C theory tests are drawn from the official 600-question bank used for road motor-vehicle licensing. Candidates should therefore study across all official content sections instead of memorizing one narrow worksheet.

7When a traffic controller's hand signal conflicts with a traffic light, what should a driver follow?

A.The traffic controller's signal

B.The traffic light only

C.The vehicle horn of the largest truck

D.The direction chosen by the fastest vehicle

Explanation: A traffic controller's lawful signal takes priority because it manages the immediate situation at the intersection or hazard. Category C drivers must be ready to obey controllers even when the signal light would normally allow another movement.

8What should a driver do at a steady red traffic light?

A.Slow down and continue if the road looks clear

B.Stop before the stop line or crosswalk and wait for permission to proceed

C.Sound the horn and proceed first if driving a truck

D.Enter the intersection and stop in the middle

Explanation: A steady red signal requires a stop before entering the controlled intersection, usually before the stop line or crosswalk. Stopping in the intersection blocks other traffic and creates a collision risk.

9What is the safest response to a yellow traffic light when you can stop safely before the line?

A.Accelerate to beat the red light

B.Stop before the stop line

C.Move into the opposite lane

D.Stop after the crosswalk

Explanation: A yellow signal warns that the right to proceed is ending. If a Category C vehicle can stop safely before the stop line, stopping is the safer and expected response because heavy vehicles need more room to clear intersections.

10What does a continuous solid lane line normally mean for a driver?

A.Lane changes across the line are restricted

B.The line marks a recommended truck parking area

C.Drivers must straddle the line for better visibility

D.The line applies only to motorcycles

Explanation: A continuous solid line normally separates traffic streams or lanes where crossing is restricted. A truck driver should stay in the proper lane until a permitted broken-line section or lane-change area appears.

About the Vietnam GPLX C Exam

The Vietnam GPLX Category C theory test is the heavy truck theory exam under the 2025 licence-category framework. Category C covers trucks and special-use vehicles with designed total mass over 7,500 kg and includes the lower B and C1 vehicle scopes. CSGT's 2025 guidance for the official 600-question bank states that Category C theory tests use 40 questions. Each test includes one serious unsafe-traffic question; answering that question incorrectly causes the theory test to fail. The 40-question structure covers general traffic rules, one serious unsafe situation, traffic culture and ethics with rescue and fire-safety awareness, driving technique, vehicle construction and repair, road signs, and sa-hinh traffic-situation handling.

Assessment

CSGT's 2025 guidance states that Category C theory tests use 40 questions selected from the official 600-question bank: 10 general traffic-rule questions, 1 serious unsafe-traffic question, 1 traffic-culture/ethics/rescue/fire-safety question, 2 driving-technique questions, 1 vehicle-construction and repair question, 14 road-sign questions, and 11 sa-hinh traffic-situation questions.

Time Limit

Not published in the reviewed official source pages

Passing Score

Not published in the reviewed official source pages; the official guidance states that one serious unsafe-traffic question appears on each test and the theory test is not passed if that question is answered incorrectly

Exam Fee

Not published in the reviewed official source pages (Traffic Police Department (CSGT), Ministry of Public Security)

Vietnam GPLX C Exam Content Outline

10 of 40

General Traffic Rules

Road-user duties, obedience to signals and police directions, lane discipline, intersections, crossings, yielding, emergency vehicles, speed, following distance, cargo safety, and prohibited unsafe behavior.

1 of 40

Serious Unsafe-Traffic Situations

Critical questions from the official serious-safety pool; answering this item incorrectly fails the theory test regardless of the rest of the paper.

1 of 40

Traffic Culture, Ethics, Rescue, and Fire Safety

Professional conduct, patience, non-aggressive driving, assistance after crashes, emergency calls, fire-safety awareness, rescue, and respect for pedestrians and vulnerable road users.

2 of 40

Driving Technique

Truck control, hill descent, wet-road braking, blind spots, wide turns, off-tracking, fatigue management, expressway merging, emergency control, and safe cargo-aware driving.

1 of 40

Vehicle Construction and Repair

Basic truck systems, brakes, tires, steering, lights, mirrors, pre-trip inspection, dashboard warnings, roadworthiness, and defect response.

14 of 40

Road Signs

Warning, prohibition, mandatory, guide, STOP, yield, no-entry, truck prohibition, weight, axle-load, width, height, speed, parking, road-works, railway, pedestrian, roundabout, and lane-arrow signs.

11 of 40

Sa-Hinh Traffic Situations

Priority and conflict-resolution questions shown as traffic diagrams: intersections, left turns, roundabouts, crossings, narrow bridges, obstructions, emergency vehicles, expressway decisions, and blocked junctions.

How to Pass the Vietnam GPLX C Exam

What You Need to Know

Passing score: Not published in the reviewed official source pages; the official guidance states that one serious unsafe-traffic question appears on each test and the theory test is not passed if that question is answered incorrectly
Assessment: CSGT's 2025 guidance states that Category C theory tests use 40 questions selected from the official 600-question bank: 10 general traffic-rule questions, 1 serious unsafe-traffic question, 1 traffic-culture/ethics/rescue/fire-safety question, 2 driving-technique questions, 1 vehicle-construction and repair question, 14 road-sign questions, and 11 sa-hinh traffic-situation questions.
Time limit: Not published in the reviewed official source pages
Exam fee: Not published in the reviewed official source pages

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

Vietnam GPLX C Study Tips from Top Performers

1Study the official structure first: road signs and sa-hinh together account for 25 of the 40 Category C theory questions.

2Treat serious unsafe-traffic questions separately because one appears on every test and a wrong answer fails the theory test.

3Memorize the Category C vehicle scope: trucks and special-use vehicles over 7,500 kg, with B and C1 vehicles included.

4Practise sa-hinh situations by identifying the controlling signal, sign, road marking, priority road, emergency vehicle, and whether your truck can fully clear the conflict area.

5For truck-specific items, focus on stopping distance, blind spots, wide turns, load securement, brakes, tires, hill driving, and road signs that limit weight, height, width, or truck entry.

6Use these English questions for comprehension, then review official Vietnamese terms and sign images before test day.

Frequently Asked Questions

How many questions are on the Vietnam GPLX Category C theory test?

CSGT's 2025 guidance states that Category C theory tests use 40 questions selected from the official 600-question bank.

What vehicles does the 2025 Category C licence cover?

The 2025 licence-category source states that Category C covers trucks and special-use vehicles with designed total mass over 7,500 kg and includes the lower B and C1 vehicle scopes.

What is the serious unsafe-traffic question rule?

The official guidance states that every test includes one serious unsafe-traffic question. If that question is answered incorrectly, the theory test is not passed.

What topics are on the Category C theory test?

The official Category C 40-question structure includes 10 general traffic-rule questions, 1 serious unsafe-traffic question, 1 traffic-culture/ethics/rescue/fire-safety question, 2 driving-technique questions, 1 vehicle-construction and repair question, 14 road-sign questions, and 11 sa-hinh traffic-situation questions.

Is there an official passing correct-answer threshold in these sources?

The reviewed official source pages describe the 40-question structure and the serious unsafe-traffic fail rule, but they do not publish a separate Category C passing correct-answer threshold.