Complete Solution
California Driver's License Written Exam (Vietnamese Language) | Key Domains: California Vehicle
Code (CVC) Road Rules, Traffic Signs & Signals, Right-of-Way Laws, Safe Driving Practices, Alcohol &
Drug Impairment Laws, Parking Regulations, and Sharing the Road with
Bicycles/Motorcycles/Pedestrians | Expert-Aligned Structure | Bilingual Exam Prep Format
Introduction
This structured Vietnamese-language California DMV Written Test 1 for 2026/2027 provides a
complete set of practice questions with correct answers and rationales in both Vietnamese and
English. It emphasizes comprehension of California-specific traffic laws, recognition of standard
road signs, and application of safe driving principles as required for passing the California DMV
written knowledge test.
Exam Structure:
• Practice Test 1 (Full Simulation): (46 QUESTIONS)
Answer Format
All correct answers must appear in bold and cyan blue, accompanied by concise rationales
explaining the specific California Vehicle Code (CVC) rule, the correct meaning of a sign or signal, the
safest driving action in a scenario, and why alternative options are illegal or unsafe according to
California law. Rationales will be provided in English for clarity and reference.
1. Dấu hiệu này có nghĩa là gì? (Hình: Dấu hiệu “STOP” màu đỏ hình bát giác)
What does this sign mean? (Image: Red octagonal “STOP” sign)
A. Giảm tốc độ và chuẩn bị dừng lại
B. Dừng lại hoàn toàn trước vạch dừng
C. Nhường đường cho các xe khác
D. Dừng lại chỉ khi có xe đến
B. Dừng lại hoàn toàn trước vạch dừng
,The red octagonal STOP sign (CVC §22450) requires a complete stop at the limit line (or before
entering the crosswalk). You must come to a full stop—wheels not moving—even if no traffic is visible.
Option A describes a yield sign. Option C is for “YIELD” signs. Option D is illegal.
2. Nồng độ cồn trong máu (BAC) hợp pháp tối đa cho người lái xe trên 21 tuổi ở California là
bao nhiêu?
What is the legal blood alcohol concentration (BAC) limit for drivers aged 21 or older in
California?
A. 0.01%
B. 0.05%
C. 0.08%
D. 0.10%
C. 0.08%
Under California Vehicle Code §23152(b), it is illegal for a driver 21 or older to operate a vehicle with a
BAC of 0.08% or higher. For commercial drivers, the limit is 0.04%. For drivers under 21, any
measurable BAC (0.01%) is a violation (zero-tolerance law).
3. Khi nào bạn phải nhường đường cho người đi bộ?
When must you yield to pedestrians?
A. Chỉ khi họ ở trong vạch kẻ đường (crosswalk)
B. Khi họ đang băng qua đường tại giao lộ, dù có vạch kẻ hay không
C. Chỉ khi đèn báo người đi bộ màu xanh
D. Chỉ khi cảnh sát ra hiệu
B. Khi họ đang băng qua đường tại giao lộ, dù có vạch kẻ hay không
, CVC §21950 requires drivers to yield to pedestrians crossing at intersections, whether marked or
unmarked. California law gives pedestrians the right-of-way in these situations, even if they are not in
a painted crosswalk. Failing to yield can result in fines and points.
4. Dấu hiệu hình tam giác màu vàng với chữ “YIELD” màu đỏ có nghĩa là gì?
What does a yellow triangle-shaped sign with red “YIELD” lettering mean?
A. Dừng lại bắt buộc
B. Giảm tốc độ, sẵn sàng dừng lại, và nhường đường
C. Đường ưu tiên
D. Cấm rẽ trái
B. Giảm tốc độ, sẵn sàng dừng lại, và nhường đường
The YIELD sign (CVC §22453) means you must slow down, be prepared to stop, and give the
right-of-way to vehicles or pedestrians in or approaching the intersection. Unlike a STOP sign, a full
stop is only required if traffic conditions demand it.
5. Bạn có thể đậu xe cách vòi chữa cháy bao xa?
How far must you park from a fire hydrant?
A. 5 feet
B. 10 feet
C. 15 feet
D. 20 feet
C. 15 feet
CVC §22514 prohibits parking within 15 feet of a fire hydrant, unless the vehicle is attended by a
licensed driver who can immediately move it. This ensures firefighters have access during emergencies.