100+ Free HK Green Card (Construction) Practice Questions

Pass your Mandatory Basic Safety Training Course (Construction Work) — Construction Industry Safety Card (Green Card) exam on the first try — instant access, no signup required.

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Sample HK Green Card (Construction) Practice Questions

Try these sample questions to test your HK Green Card (Construction) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under Hong Kong occupational safety law principles taught in Green Card training, what is an employer's primary duty regarding employees at work?

A.Ensure the safety and health of employees during work

B.Only provide safety training after an accident occurs

C.Transfer all safety responsibility to the Labour Department

D.Require employees to buy their own personal protective equipment

Explanation: An employer should ensure the safety and health of employees during work. Employees must also take care of their own safety and health and that of others at the workplace. Green Card training emphasises shared but distinct duties under Hong Kong OSH law.

2Which pathways can dangerous substances mainly enter a construction worker's body?

A.Swallowing, skin contact and inhalation

B.Only through open wounds

C.Only through the eyes

D.Only through prolonged sun exposure

Explanation: Swallowing, skin contact and inhalation are the main pathways for dangerous substances to enter a worker's body. Chemical labels and PPE selection must address these exposure routes.

3What is the proper first step for identifying the name, classification, risks and precautions of a chemical in a container on site?

A.Study the label content on the outside of the container

B.Taste a small amount to identify the chemical

C.Open the container and smell it

D.Ask any nearby worker to guess the contents

Explanation: Studying the label outside a container is the proper way to identify the chemical name, classification, particular risks and safety precautions. Essential label information includes name, classification, particular risks and safety precautions.

4Which set of terms is used to classify chemical properties in the Labour Department Green Card tutorial materials?

A.Explosive, oxidizing, flammable, toxic, harmful, corrosive and irritant

B.Only solid, liquid and gas

C.Only expensive and cheap

D.Only indoor-use and outdoor-use

Explanation: Chemicals are classified using terms such as explosive, oxidizing, flammable, toxic, harmful, corrosive and irritant. Workers must use protective clothing and equipment provided by the employer when handling chemicals.

5What is a main purpose of implementing a permit-to-work system on a construction site?

A.Ensure a workplace is safe for work and help prevent accidents

B.Increase overtime hours for supervisors

C.Replace the need for any risk assessment

D.Allow untrained workers to perform live electrical work

Explanation: A permit-to-work system helps ensure a workplace is safe for work and can help prevent accidents. It is a control measure for high-risk activities, not a substitute for competence or risk assessment.

6On a construction site employing 30–99 workers, what first-aid staffing requirement is stated in the Labour Department tutorial materials?

A.At least one person trained in first aid

B.No first-aid trained person is required

C.At least ten doctors must be on site full time

D.Only the site security guard may give first aid

Explanation: The quantity of first-aid facilities depends on the number of workers employed. A construction site with 30–99 workers employed shall have at least one person trained in first aid.

7Who may a proprietor of construction work employ to carry out construction work under the Green Card requirement?

A.Only workers holding a valid Green Card (Construction Work)

B.Anyone who has watched a safety video online

C.Any visitor with a Hong Kong Identity Card

D.Workers whose Green Cards expired more than one year ago without revalidation

Explanation: A proprietor of construction work can employ only workers holding a Green Card (Construction Work) to carry out construction work. From 1 May 2001, section 6BA of the Factories and Industrial Undertakings Ordinance requires recognised safety training and a valid certificate.

8Why do new construction workers often face higher risks on site?

A.They are often unfamiliar with site conditions and operations and may lack experience and safety awareness

B.They are automatically immune to falling hazards

C.They are legally exempt from wearing PPE for the first month

D.They may only work on completed buildings

Explanation: New construction workers are often unfamiliar with site conditions and operations. Lack of experience and insufficient personal safety awareness raise their risk. Tutorial materials stress familiarisation, PPE use and refusing unsafe work.

9Which action should construction workers take if they notice an unsafe condition?

A.Stop unsafe work, refuse work in an unsafe environment, and report to the supervisor immediately

B.Continue working quietly to avoid delaying the programme

C.Ignore the hazard if no one has been injured yet

D.Cover the hazard with materials so others will not see it

Explanation: Workers should stop unsafe work, refuse to carry out work in an unsafe environment, and report unsafe conditions to the supervisor immediately. Speaking up about safety doubts is encouraged; drinking, drug use and untrained hazardous work are prohibited.

10What is the main purpose of Mandatory Basic Safety Training (Green Card training)?

A.Enhance workers' safety awareness

B.Train workers to become registered safety officers

C.Replace all site-specific inductions

D.Qualify workers to design temporary works

Explanation: The main purpose of implementing mandatory basic safety training (Green Card training) is to enhance workers' safety awareness. The Green Card is typically valid for 3 years and must be carried while at work.

About the HK Green Card (Construction) Exam

The Hong Kong Mandatory Basic Safety Training (Construction Work) certificate — commonly called the Green Card or Construction Industry Safety Card — is required before a person may be employed to carry out construction work. Training covers occupational safety and health legislation, work-above-ground / work-at-height, PPE, fire, machinery, electricity, confined spaces, manual handling, welding, excavation, lifting operations, emergency preparedness and accident reporting, grounded in the Labour Department's 2023 refresher and tutorial materials.

Assessment

Mandatory Basic Safety Training Course (Construction Work) recognised under section 6BA of the Factories and Industrial Undertakings Ordinance. Full course about 7.5 hours covering general work safety, OSH legislation, potential site hazards and preventions, fire prevention, emergency preparedness, accident reporting, and hands-on PPE practice (including full body harness with lifeline), followed by a Labour Department-specified written MCQ examination (20 questions, 30 minutes, 60% pass). Certificate (Green Card) typically valid 3 years; revalidation course about 3.5 hours.

Time Limit

30 minutes for the written examination. Full MBST Construction Work course is about 7.5 hours including instruction, PPE practice and exam; revalidation about 3.5 hours.

Passing Score

At least 60% on the Labour Department-specified written examination. Award of certificate also requires required attendance and completion of the hands-on practice (including late/early-leave rules that can disqualify exam entry).

Exam Fee

Set by approved training course providers; commonly about HK$180–HK$420 for the full course (provider-dependent, e.g. OSHC lists around HK$420). Confirm the current fee when you enrol. (Labour Department (course recognition and exam papers) via approved training course providers)

HK Green Card (Construction) Exam Content Outline

10%

General Safety & OSH Legislation

Duties, chemicals, permits, first aid, Green Card employment rule and new-worker awareness.

16%

Work-above-Ground / Work-at-Height

Platforms, scaffolds, Form 5, ladders, gondolas, anchorage and MEWPs.

12%

Personal Protective Equipment

Hierarchy, helmets, shoes, harnesses, respirators, hearing and eye protection.

Fire Safety

Fire triangle, extinguisher types and flammable storage.

Machinery Safety

Hoists, plant operator rules, guarding, lock-out and tunnel traffic.

Electricity Safety

Earthing, isolation, wet work and registered electrician limits.

Confined Spaces Operations

Definition, permits, gas testing, BA/lifeline, ventilation and rescue.

Manual Handling Operations

Lifting posture, assessment, trolleys and improper practices.

Welding Safety

Gas/arc welding controls, fumes, PPE and drum cleaning.

Excavation Work Safety

Collapse, utilities, Form 4, shoring and cable distances.

Lifting Appliances and Lifting Gear

Cranes, ASLI, SWL, ground conditions, signallers and inspections.

Emergency Preparedness & Accident Reporting

Shared duties, drills, heat stress warnings and Green Card validity.

How to Pass the HK Green Card (Construction) Exam

What You Need to Know

Passing score: At least 60% on the Labour Department-specified written examination. Award of certificate also requires required attendance and completion of the hands-on practice (including late/early-leave rules that can disqualify exam entry).
Assessment: Mandatory Basic Safety Training Course (Construction Work) recognised under section 6BA of the Factories and Industrial Undertakings Ordinance. Full course about 7.5 hours covering general work safety, OSH legislation, potential site hazards and preventions, fire prevention, emergency preparedness, accident reporting, and hands-on PPE practice (including full body harness with lifeline), followed by a Labour Department-specified written MCQ examination (20 questions, 30 minutes, 60% pass). Certificate (Green Card) typically valid 3 years; revalidation course about 3.5 hours.
Time limit: 30 minutes for the written examination. Full MBST Construction Work course is about 7.5 hours including instruction, PPE practice and exam; revalidation about 3.5 hours.
Exam fee: Set by approved training course providers; commonly about HK$180–HK$420 for the full course (provider-dependent, e.g. OSHC lists around HK$420). Confirm the current fee when you enrol.

Keys to Passing

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

HK Green Card (Construction) Study Tips from Top Performers

1Download and revise the Labour Department Refresher & Tutorial Materials for MBST Construction Work (2023) section by section — many exam items track those key learning points almost directly.

2Memorise numerical rules that recur in questions: platform width 400 mm, guardrail and toe-board heights, scaffold Form 5 within 14 days, outdoor mobile tower ≤3:1, ladder 1:4, excavation Form 4 every 7 days, ASLI above 1 tonne SWL, personnel cage depth 900 mm, and 60% / 30 minutes / 3-year validity.

3Separate 'Green Card awareness' from trade tickets: a Green Card does not authorise live electrical work, crane/excavator/gondola operation, gas welding or confined-space certified-worker entry without the relevant additional certificates.

Frequently Asked Questions

What is the Hong Kong Green Card and who needs it?

The Green Card is the certificate from a Mandatory Basic Safety Training Course (Construction Work) recognised by the Commissioner for Labour under section 6BA of the Factories and Industrial Undertakings Ordinance. From 1 May 2001, a person generally needs a valid certificate before being employed to carry out construction work, and proprietors may only employ holders of valid certificates for that work. The card is commonly valid for 3 years.

How long is the exam and what is the pass mark?

Labour Department approval conditions state that the written examination lasts 30 minutes and the passing mark is 60%. The official answer-sheet template instructs trainees to answer 20 multiple-choice questions (5 marks each). Examination papers are issued and specified by the Labour Department and remain LD-controlled.

What topics does this free practice bank cover?

This bank has 100 multiple-choice questions aligned to the Labour Department Refresher & Tutorial Materials for MBST Construction Work (2023): general safety and OSH law, work at height, PPE, fire, machinery, electricity, confined spaces, manual handling, welding, excavation, lifting appliances/gear, and emergency preparedness including heat stress and Green Card validity.

How much does the Green Card course cost?

Fees are set by approved training course providers and commonly fall around HK$180–HK$420 for the full course (for example OSHC has listed about HK$420). Always confirm the current fee, language and schedule with a Labour Department-recognised provider before enrolling.