Free Practice Questions for HKIA/ARB PA Paper 5

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Sample HKIA/ARB PA Paper 5 Practice Questions

Try these sample questions to review concepts for the HKIA/ARB PA Paper 5 exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Before demolition of an existing Hong Kong building, a primary precaution is to:

A.Ignore utility disconnections

B.Survey for hazardous materials, disconnect services and protect adjoining properties as required

C.Start top-down removal without any temporary works assessment

D.Assume all structures are unloaded automatically

Explanation: Safe demolition needs surveys (including hazardous materials), service isolation and protection of neighbours, plus engineered temporary works where required.

2Excavation and earthworks on urban Hong Kong sites most critically require control of:

A.Only the colour of excavated soil for landscaping photos

B.Stability of cuts/retaining support, groundwater and effects on adjoining buildings

C.Interior wallpaper selection

D.Lift car interior finishes

Explanation: Urban excavations affect support of ground and neighbours and often involve groundwater control—finishes are unrelated.

3Steel sheet piling is commonly used in Hong Kong to:

A.Decorate lobbies

B.Provide temporary or permanent earth retention for excavations and cofferdams

C.Replace all concrete foundations permanently in every tower

D.Act as acoustic ceiling tiles

Explanation: Sheet piles form retaining walls for excavations/cofferdams. They are not lobby decoration or ceiling tiles.

4Adequate curing of concrete is important mainly because it:

A.Only changes the surface colour fashionably

B.Allows hydration to develop strength and durability and reduces early cracking risk

C.Eliminates the need for any reinforcement forever

D.Makes formwork unnecessary

Explanation: Curing maintains moisture/temperature for hydration, improving strength and durability. Reinforcement and formwork remain necessary as designed.

5Cover to reinforcement in concrete primarily protects against:

A.Only aesthetic staining with no durability role

B.Corrosion of steel and helps achieve required fire resistance of the member

C.Increasing the water-cement ratio deliberately

D.Eliminating all formwork ties

Explanation: Concrete cover shields reinforcement from corrosion and contributes to fire resistance. It is not about raising w/c ratio.

6Hong Kong foundation systems for heavy buildings frequently include:

A.Only timber padstones on soft mud without investigation

B.Piles or other deep foundations transferring loads to competent strata/rock after ground investigation

C.Balloons as permanent foundations

D.Carpet underlays as bearing layers

Explanation: Given local geology and heavy loads, piled/deep foundations to competent strata are common after SI. Temporary or unsuitable materials are not foundations.

7Brickwork/blockwork walls require movement joints mainly to:

A.Increase uncontrolled cracking through long walls

B.Accommodate thermal/moisture movement and reduce random cracking

C.Eliminate all mortar

D.Replace foundations

Explanation: Masonry moves with moisture and temperature; joints control cracking. Mortar and foundations remain necessary.

8Natural stone masonry differs from brickwork mainly in that stone units are often:

A.Identical extruded clay modules only

B.Irregular or cut from quarry stone with different bedding and jointing practices

C.Made exclusively of gypsum plasterboard

D.Used only as carpet underlay

Explanation: Stone masonry uses quarried/cut units with bedding considerations different from modular clay bricks. Plasterboard and carpet are not stone masonry.

9A continuous waterproofing membrane at roof level should primarily:

A.Stop at every upstand without detailing

B.Provide a continuous weatherproof layer with proper detailing at upstands, outlets and penetrations

C.Be omitted under all tiled roofs automatically

D.Replace the structural slab

Explanation: Waterproofing success depends on continuity and detailing at edges/penetrations. Membranes do not replace structure.

10Expansion joints through the building envelope must be detailed to:

A.Be bridged by rigid brittle finishes with no gap

B.Allow structural movement while remaining weathertight with appropriate sealants/covers

C.Be left as open holes into occupied rooms

D.Ignore differential movement

Explanation: Envelope joints accommodate movement and keep weather out using flexible seals/covers—not rigid bridging or open holes.

About the HKIA/ARB PA Paper 5 Exam

HKIA/ARB Professional Assessment Paper 5 tests knowledge of materials, components and finishes; selection of construction techniques; local Hong Kong trade practices and statutory restraints; barrier-free design; specification principles; and diagnosis/prevention of building defects. The emphasis is practical architectural judgment for buildable, durable detailing under Hong Kong conditions.

Exam sponsor: Hong Kong Institute of Architects (HKIA) / Architects Registration Board (ARB). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Open-book multiple-choice paper on materials properties/performance, construction techniques, local practices, statutory restraints, barrier-free design, specification and building defects. From March 2027, Papers 3, 4 and 5 are replaced by one combined technical paper.

Time Limit

1.5 hours

Passing Score

Not published as a fixed percentage in the current Handbook; confirm the PAC threshold for your session. Scores within 10% below the pass mark may be reviewed.

Exam / Certification Fees

PA 2026: HK$1,250 paper fee (assessment + lectures) plus HK$600 / HK$1,800 registration per Handbook Appendix E. From PA 2027 Q1: combined Paper 3/4/5 fee HK$1,750 (Circular 28/2026). Confirm on hkia.net before registering.

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

40%

Application of Building Techniques and Materials

From demolition and foundations through concrete, steel, masonry, waterproofing, cladding, finishes and external works.

Local Construction Trade Practices

Hong Kong sequencing, trade coordination and site practice.

12%

Detailing and Selection of Components and Systems

Selecting and detailing for performance and buildability.

12%

Local Statutory Restraints

Construction regulations, fire-resisting construction, refuse, energy and Practice Notes.

Design for the Disabled / Barrier-Free Access

BFA requirements and related planning regulation applications.

Specification in the Hong Kong Context

Workmanship, standards/tests and HK specification practice.

12%

Building Defects — Diagnosis, Remedial Works and Prevention

Envelope failures: moisture, movement, adhesion loss and corrosion.

Preparing for the HKIA/ARB PA Paper 5 Exam

What You Need to Know

Passing score: Not published as a fixed percentage in the current Handbook; confirm the PAC threshold for your session. Scores within 10% below the pass mark may be reviewed.
Assessment: Open-book multiple-choice paper on materials properties/performance, construction techniques, local practices, statutory restraints, barrier-free design, specification and building defects. From March 2027, Papers 3, 4 and 5 are replaced by one combined technical paper.
Time limit: 1.5 hours
Exam / certification fees: PA 2026: HK$1,250 paper fee (assessment + lectures) plus HK$600 / HK$1,800 registration per Handbook Appendix E. From PA 2027 Q1: combined Paper 3/4/5 fee HK$1,750 (Circular 28/2026). Confirm on hkia.net before registering. Official sources

Using Our Practice Resources

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HKIA/ARB PA Paper 5: Suggested Study Strategy

1Study details as systems: waterproofing continuity, movement joints, fire stops and cladding fixings fail at interfaces more often than in mid-panel materials.

2Use the open-book privilege with ASD General Specification, Building (Construction) Regulations and BD Practice Notes tabbed for quick lookup of workmanship and statutory constraints.

3Practice defect diagnosis using the syllabus failure mechanisms (condensation, entrapped moisture, rain penetration, rising damp, movement, loss of adhesion, corrosion) against Hong Kong envelope conditions.

Frequently Asked Questions

What does HKIA/ARB Paper 5 cover?

Paper 5 (Building Materials & Technology) covers materials and construction techniques, local trade practices, detailing and selection, Hong Kong statutory restraints, barrier-free access design, specification principles, and building defects diagnosis, remediation and prevention.

How many questions and how long is Paper 5?

The official Paper 5 is 60 multiple-choice questions in 1.5 hours and is an open-book paper under the Handbook's Appendices I–J rules. This free practice bank provides 100 MCQs mapped to the same syllabus themes.

What is the Paper 5 fee?

For PA 2026, the Handbook lists Paper 5 at HK$1,250 (assessment and lectures) plus registration HK$600 (Graduate Member/Associate) or HK$1,800 (non-member). From PA 2027 Q1, Papers 3–5 merge into Integrated Building Technologies at HK$1,750 (Circular 28/2026). Confirm on the HKIA website before registering.

Will Paper 5 still exist after 2026?

HKIA Circular 37/2025 states that from March 2027, Papers 3, 4 and 5 are abolished and replaced by a single integrated technical paper. Candidates who have not passed all three papers before then must take the new technical paper.