HKIA/ARB PA Paper 1 common mistakes
HKIA/ARB PA Paper 1 · Understand the traps and how to avoid them.
Answering questions about the Architects Registration Ordinance (Cap. 408) from memory of general practice rather than from the actual provisions, e.g. guessing who must be registered to use the title "Architect", what constitutes an offence, or the composition and disciplinary powers of the Architects Registration Board.
Candidates treat Cap. 408 as background reading and rely on workplace habit or hearsay. The Ordinance is short and precise, so questions test exact wording: registration eligibility, the offence of holding out as an architect while unregistered, the Board's inquiry and disciplinary sanctions, and the appeal route. Candidates who never read the sections cannot distinguish, for example, a firm's trading name from an individual's protected title.
What to do instead
Work through Cap. 408 section by section and build a one-page map: registration and renewal, the Board's constitution, complaint and inquiry procedure, disciplinary orders, and offences and penalties. For each, write the section number and a one-line paraphrase. Drill the distinction between individual registration and corporate/firm practice, and between the protected title and unprotected descriptive terms. Re-test yourself by writing the section number next to every practice statement you make.
Treating the Code of Professional Conduct as a list of slogans and failing to apply it to a concrete conflict of interest, such as accepting a contractor's hospitality, acting for both parties, or taking a commission that competes with a current client.
The Code is learned as abstract principles (integrity, competence, confidentiality) without practising its application. Exam questions present a scenario with several plausible responses and expect the candidate to identify the specific obligation triggered, disclose it, and decline or manage the conflict. Candidates pick the 'reasonable-sounding' answer instead of the one that follows the Code's disclosure and avoidance requirements.
What to do instead
Convert each Code principle into an if-then rule and rehearse scenarios: identify the interest, identify to whom it must be disclosed, identify what must be declined, and record it. Practise writing a short disclosure note for three scenarios (gift from a tenderer, family interest in a supplier, previous employment with a competitor). In the exam, name the principle, apply it to the facts, and state the action, rather than describing the principle in general.
Confusing the roles and liabilities of the architect, the contractor, and the contract administrator, and answering contract questions as if the architect 'guarantees' the works or personally warrants the contractor's performance.
Site experience blurs the legal boundaries. Candidates who have administered contracts assume the architect's certificate is a warranty of quality, or that the architect can instruct a variation outside the contract's scope. Questions test the architect's duty to certify honestly and independently, the limits of the instruction power, and the difference between design liability and construction liability.
What to do instead
Draw a responsibility matrix for the standard forms you use: who designs, who constructs, who certifies, who bears risk at each stage, and what the architect may and may not instruct. Learn the wording of the certification and instruction clauses and the consequences of certifying without reasonable basis. Answer scenario questions by first locating the clause, then stating the architect's duty, then the consequence of breaching it.
Describing the tender process in general terms without addressing the specific procedural safeguards: pre-qualification criteria, addenda issued to all tenderers, late-tender handling, confidentiality of tenders, and the basis for rejecting the lowest bid.
Candidates summarise 'we invited tenders and selected the best' and omit the controls that make the process defensible. Examiners reward precision about equal treatment, transparency, and documented reasons. The same weakness appears in questions on tender evaluation and on the obligation to avoid post-tender negotiation that undermines competition.
What to do instead
Write a numbered tender timeline with the control at each step: pre-qualification, issue, queries and addenda to all, receipt and time-stamping, opening, evaluation against stated criteria, clarification versus negotiation, and award with recorded reasons. For each step, state what could go wrong and the safeguard. Practise a two-paragraph answer on why the lowest price may be rejected and what must be documented.
Answering security of payment adjudication questions with generic 'mediation' language, missing the statutory mechanics: the right to progress payments, the payment claim and payment response timeframes, the adjudicator's appointment, the adjudication determination, and the consequences of not paying.
Candidates have not studied the statutory regime and default to describing negotiation or arbitration. The exam tests the sequence and the time limits, and the difference between a payment claim, a payment response, and an adjudication application. Vague answers lose marks even when the candidate understands the commercial problem.
What to do instead
Build a flowchart of the statutory process with the statutory periods marked at each arrow, and learn what happens if a payment response is not served or a determination is not complied with. Memorise the grounds on which a determination can be challenged and the limited role of the court. Rehearse one worked example with dates, showing each step and the deadline.
Giving a technology answer that names a material or system but never explains the build-up, the performance requirement, the failure mode, or the interface with adjacent elements.
Candidates revise from product brochures and can name products but not detail them. Questions on waterproofing, fire resistance, thermal performance, or facade systems expect layer-by-layer description, the reason for each layer, and the common defect at junctions. Naming 'a waterproofing membrane' without lap, upstand, and termination detail earns little.
What to do instead
For each system you revise, draw a labelled section through the typical build-up and through a junction (parapet, threshold, movement joint, penetration). State the function of each layer and the failure mode if it is omitted or installed wrongly. Practise explaining one system aloud in 90 seconds with the drawing in front of you, then write the same explanation without the drawing.
Answering construction-practice questions without reference to sequence, tolerances, inspection points, or temporary works, so the answer reads as a design intention rather than a buildable method.
Candidates study design and detailing but not how the work is executed on site. Questions on site practice expect the sequence of operations, the hold points before covering up, the tolerance and its standard, and the temporary support or protection needed. Without this, answers cannot distinguish a competent method statement from a wish.
What to do instead
For the main elements (excavation and support, foundations, structural frame, envelope, services rough-in, finishes), write a short method statement with sequence, hold points, inspection and testing, and protection of finished work. Learn the tolerance categories and where they are stated. Practise converting a detail into a sequence of site operations and identifying the point of no return where inspection must occur.
In case-study questions, restating the facts and the outcome instead of identifying the professional judgement failure, the point at which a different decision was available, and the consequence that followed.
Candidates treat case studies as comprehension exercises. The examiner is testing whether the candidate can diagnose where professional judgement broke down, what the correct process would have been, and what the candidate would do differently. Description without diagnosis scores poorly even when factually accurate.
What to do instead
Use a fixed four-part structure for every case answer: the issue, the governing rule or duty, the analysis of the facts against that rule, and the recommended action with its consequence. Practise on past scenario themes (certification pressure, undisclosed conflict, inadequate site supervision, unrealistic programme) and force yourself to name the decision point and the alternative.
Ignoring the examiners' report themes and repeating the same structural errors: not answering the question asked, omitting the legal or contractual basis, failing to reach a conclusion, and running out of time on the final question.
Candidates revise content but not exam technique. Reports consistently note answers that describe rather than advise, that give no authority for a statement, and that leave the marker to infer the conclusion. Time is lost on early questions because the candidate writes everything they know rather than what is asked.
What to do instead
Read the examiners' reports before revising and list the recurring criticisms. For every practice answer, check three things: does the first sentence answer the question, is each assertion tied to a section, clause, or principle, and does the last sentence state a clear conclusion or recommendation. Practise under timed conditions with a strict per-question allocation and a two-minute planning pause before writing.
Handling ethics questions by choosing the option that protects the client's commercial interest or the candidate's own position, rather than the option that preserves independence, honesty in certification, and disclosure of conflicts.
Workplace loyalty and commercial pressure shape instinct. Candidates select the answer that 'gets the project done' or avoids confrontation, when the correct answer requires declining to certify, reporting the matter, or disclosing an interest even at cost to the relationship. The exam tests whether the candidate will act on the duty rather than on convenience.
What to do instead
Memorise the small set of non-negotiable duties: certify only on honest judgement, do not mislead, disclose conflicts, keep confidences, and do not accept inducements that could influence judgement. For each, write the scenario where it is tested and the correct action. In the exam, eliminate any option that trades a duty for a commercial outcome, then justify the remaining option by naming the duty it protects.