위산기 필기 - 위험물산업기사 필기 시험 대비

In the written exam for the Industrial Engineer in Hazardous Materials (Hazardous Materials Technician), General Chemistry is usually the deciding factor between passing and failing.

This is not an app that merely increases the number of questions. For the Physical and Chemical Properties of Matter (General Chemistry) section, where many test-takers struggle—instead of simply showing the correct answer and moving on—we have focused on explaining the calculations and chemical equations step-by-step. Furthermore, the cognitive science-based FSRS algorithm analyzes the forgetting curve for each question to automatically determine the optimal review time, ensuring that the amount of information retained is significantly different even with the same amount of time invested.

[Key Features]

1,009 Questions, Full Range of 3 Subjects

From the Physical and Chemical Properties of Matter (General Chemistry) to fire prevention and extinguishing methods, and the properties and handling of hazardous materials. We have created this app in-house, reflecting the exam standards for the Industrial Engineer in Hazardous Materials written exam.

Step-by-Step Explanations for General Chemistry

For the calculations and chemical equations in General Chemistry that test-takers get stuck on the most, we go through the solution process step-by-step rather than just checking the answer. You can preview up to 5 sets of detailed explanations for free.

Learning Core Concepts

It doesn't stop at just solving problems. When you tap a unit in the Weakness Analysis, the app organizes and displays the unit's key concepts, including definitions, key exam points, common pitfalls, and connections to related concepts. You can correct confusing concepts by switching between problem-solving and reviewing the information.

Problem Search

Find problems instantly using keywords you are curious about. You can select the search range—including passages, answer choices, and explanations—to collect and solve only the problems containing specific concepts.

Various Solution Modes

You can choose to solve problems by subject or unit, and progress and proficiency levels are displayed for each unit. You can start with unsolved problems or focus on tackling weak units.

FSRS Smart Review

The app extends the review interval for questions you answer correctly and quickly revisits frequently missed questions. You don't need to create a review schedule yourself; the app takes care of the problems you need to review today.

Review Notifications

It reminds you of review times just when you are about to forget. Daily study reminders and FSRS review time notifications help maintain your study flow. Weakness Analysis Heatmap

View correct answer rates by subject and unit at a glance. Visually identify your weak areas and move directly to solving problems in those units.

Review Box

Gather incorrect answers and questions to review in one place. You can leave personal notes for each question, allowing you to review by seeing the reasons for your confusion alongside your organized concepts.

Practical Mock Exams

60-question format identical to the actual exam (3 subjects × 20 questions, 90 minutes). Scoring reflects the minimum passing score (40 points) and average passing score for each subject, and allows you to manage your highest scores and exam history.

Learning Statistics and Continuous Study

Check your daily problem-solving count, correct answer rate trends, and continuous study days in real-time. Records that accumulate little by little every day help build consistency.

Exam Schedule D-Day

Check the upcoming Hazardous Materials Industrial Engineer written exam schedule directly on the Home screen.

Pre-Exam Checklist

A checklist appears on the Home screen when the exam is within 7 days. Prepare calmly for the day of the exam by checking your supplies and mindset one by one.

Light & Dark Themes

You can follow the system settings or choose your own, ensuring comfortable viewing even when studying late at night.

Tablet Support

You can study comfortably on tablets as well as mobile phones, with a layout optimized for large screens.

Offline Learning

You can solve problems even without an internet connection. Study without interruption, even on subways or airplanes.

Device Synchronization

Once you log in, your study records and review schedules are securely stored, allowing you to continue studying even if you switch devices.

[Content Guide]

We do not include past exam questions. This is because the Hazardous Materials Industrial Engineer written exam is conducted as a computer-based test (CBT), meaning actual exam questions are not publicly disclosed. Furthermore, since the copyright for past questions belongs to the administering body, copying and pasting them verbatim is not permitted. Instead, we have analyzed the exam criteria for the Hazardous Materials Industrial Engineer written exam and created study questions tailored to the format and difficulty level of the actual exam. The content consists of core question types with a high probability of appearing on the exam, and we do not restore or duplicate past questions. This app is an independent private learning tool designed to assist with studying for the Hazardous Materials Technician written exam. It is not affiliated with or represents any government or public institution, such as the Human Resources Development Service of Korea (HRDK) or Q-Net.

[Recommended for]

Non-majors frustrated by getting stuck on general chemistry calculations and chemical reaction equations

Office workers and career changers aiming to pass through self-study

Those who gave up because managing incorrect answers was cumbersome

Those preparing for related qualifications such as Industrial Safety Engineer or Gas Engineering

(c) 2026 DAYLAB, contact@daylab.dev

[Terms and Policies]

Terms of Use: https://dayprep.co/wisanki/terms

Privacy Policy: https://dayprep.co/wisanki/privacy

[Content Source and Non-Governmental Information]

This app is an independent private learning tool designed to assist with studying for the Hazardous Materials Technician exam. We have no affiliation, sponsorship, or approval relationship with government or public institutions, such as the Human Resources Development Service of Korea’s National Qualification Portal Q-Net, and do not represent such organizations. We do not act as agents for government agencies or political organizations, nor do we guarantee passing. Please check the latest announcements from the administering agency below for the exam schedule and detailed criteria.

Official Exam Schedule, Registration, and Subject Information: https://www.q-net.or.kr/