AIC AO common mistakes
AIC AO · Understand the traps and how to avoid them.
Treating the communication questions as personality questions, choosing the answer that sounds most agreeable or most assertive rather than the one that fits the project delivery method and contract hierarchy.
Candidates answer from personal workplace habit instead of from the formal communication protocol the exam expects, so they pick 'talk it through informally' when the correct behaviour is a written notice within a contractual time limit.
What to do instead
For every communication item, first identify who formally holds the information and what channel the contract requires, then eliminate options that bypass the chain of command or skip documentation. Practise sorting scenarios into informal coordination versus formal notice before reading the answer choices.
Confusing the roles of the owner, architect, contractor, and construction manager when a question asks who is responsible for issuing, receiving, or acting on information.
The exam uses a traditional design-bid-build framework where the architect is the owner's agent for design intent, while candidates with design-build or CM-at-risk experience map responsibilities onto the wrong party.
What to do instead
Build a one-page role matrix listing who originates, transmits, approves, and records each document type (RFI, submittal, change order, field report). Rehearse it until the default assumption is traditional delivery unless the stem states otherwise.
Applying loads or checking capacity with the wrong units or the wrong limit state, for example mixing dead and live load factors, or comparing an allowable stress to an ultimate strength.
Candidates memorise formulas without tracking which code basis (allowable stress versus load and resistance factor) the number belongs to, and unit slips under time pressure.
What to do instead
Before calculating, write the limit-state basis and the units at the top of the scratch space, then carry them through every line. Drill a small set of beam, column, and footing problems where the same geometry is solved under both bases so the difference becomes concrete.
Answering structural or mechanical concept items by recalling a remembered project solution rather than deriving behaviour from first principles such as load path, equilibrium, or thermal expansion.
Experienced candidates pattern-match to past jobs, but exam stems change span, support, or material conditions so the remembered solution no longer applies.
What to do instead
For each concept item, sketch the load path or free-body diagram and check equilibrium before selecting an answer. Where a stem describes a change in support or continuity, ask explicitly how the moment diagram changes rather than what the last similar project did.
Choosing the management style or organisational structure that is personally preferred instead of the one implied by the project size, contract type, and owner sophistication described in the stem.
Management items reward contingency thinking, but candidates default to a single style (usually collaborative or, conversely, directive) and ignore the constraints the stem deliberately supplies.
What to do instead
Underline the constraints in the stem (budget, schedule, number of stakeholders, owner experience) and match them to the structure or style they predict. Study the trade-offs of functional, matrix, and projectised organisations so the choice follows from the stated conditions.
Treating materials questions as vocabulary recall, picking a material by name familiarity rather than matching its properties (strength, durability, fire resistance, workability, cost) to the stated service condition.
Candidates know that concrete, steel, and masonry exist but have not organised properties by the criteria the exam tests, such as freeze-thaw exposure, corrosion protection, or curing requirements.
What to do instead
Create a comparison table of common materials against exposure and performance criteria and review it before practising items. For each materials stem, list the two or three governing conditions first, then eliminate materials that fail a condition.
Reading a drawing or specification question as a general knowledge question and overlooking the modelling conventions the stem implies, such as scale, line weight, section cut, or coordinate system.
Candidates focus on what is being depicted and skip how it is depicted, so they miss errors in projection, dimensioning, or model coordination that the item is actually testing.
What to do instead
Practise interpreting plan, elevation, and section views of the same simple object and note how each convention changes. For modelling items, identify the view type and the coordinate or grid reference before judging the content.
Computing a quantity or estimate from the wrong measurement basis, for example using gross area where net area is required, or omitting waste, overlap, and contingency factors.
Candidates rush to the arithmetic and skip the takeoff definition, and they under-weight the allowances that separate a conceptual estimate from a detailed one.
What to do instead
Write the measurement rule and the unit before calculating, then add the stated waste, lap, or contingency factor explicitly as a separate line. Practise converting between conceptual, square-foot, and detailed takeoff methods on the same scope so the accuracy ranges become intuitive.
Confusing cost, price, and budget, or treating a cost overrun as automatically a schedule problem, when the item is testing earned value, committed versus incurred cost, or contingency drawdown.
The vocabulary overlaps in daily use, and candidates have not separated the accounting definitions the exam relies on, so they misread what a variance figure represents.
What to do instead
Memorise the definitions of budget, commitment, actual cost, and earned value, and practise interpreting cost and schedule variance signs and indices. For each budgeting item, label the figure as planned, committed, or actual before choosing an answer.
Selecting a schedule compression technique or float interpretation without checking the critical path, so crashing is applied to a non-critical activity or total float is confused with free float.
Candidates answer from the network diagram's visual appearance rather than recomputing forward and backward passes, and under time pressure they skip the recalculation that reveals a changed critical path.
What to do instead
Recompute early and late dates for any network item, however small, and state which activities have zero total float before answering. Drill crashing and fast-tracking items where the cheapest or least disruptive activity to compress is not the obvious one.
Answering safety items with the control that is most familiar or least costly rather than following the hierarchy of controls from elimination down to personal protective equipment.
Site experience often normalises PPE as the primary answer, so candidates choose it even when the stem describes a hazard that should be engineered out or administratively controlled.
What to do instead
Rank options against the hierarchy of controls every time and reject any answer that relies on behaviour or protective equipment when a higher-order control is available. Review the hierarchy and the difference between a hazard, a risk, and an exposure before practising items.
Mishandling project administration items about submittals, RFIs, pay applications, or record documents by picking the procedural step that seems efficient rather than the one the contract sequence requires.
Candidates know the documents exist but not their order and time limits, so they approve out of sequence, skip the architect's review period, or confuse a shop drawing with a product data submittal.
What to do instead
Map the document flow for a typical project from submittal transmittal through review, resubmittal, and closeout, including who stamps and returns what. Practise sequencing items where the correct answer is the step that must precede the others.