SECTION 1 — MEASUREMENT & QUANTIFICATION (NRM / POMI / CESMM)
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Q: What is NRM2 used for?
A: For the detailed measurement and preparation of Bills of Quantities in building works. -
Q: What is the key difference between NRM1 and NRM2?
A: NRM1 is for early cost estimating; NRM2 is for detailed quantification and BoQ preparation. -
Q: What does "taking off" mean?
A: Measuring quantities from drawings to prepare a BoQ. -
Q: What is "squaring and abstracting"?
A: Squaring calculates quantities; abstracting summarises them into trade sections. -
Q: What would you measure “net” vs “gross”?
A: Finishes (net), floor area (gross), concrete volume (net). -
Q: How are openings deducted in measurement?
A: Per measurement rules; only if opening exceeds the threshold of the respective clause (e.g., > 0.5 m²). -
Q: What is "wastage" in quantification?
A: Allowance for unavoidable material loss (e.g., 5–10% for tiles). -
Q: What is "prime cost" in measurement?
A: A monetary allowance for supply of materials yet to be chosen. -
Q: What is "provisional quantity"?
A: A placeholder quantity for uncertain scopes not fully designed. -
Q: What is "measurement accuracy class" under RICS?
A: Defines expected reliability of quantities at design stages. -
Q: What information is needed before starting take-off?
A: Latest drawings, specs, measurement rules, BIM model (if used). -
Q: Difference between “item” and “lump sum”?
A: Item has measurable quantity; lump sum is a fixed price. -
Q: Why do we use standard methods of measurement?
A: Ensures consistency, reduces disputes, and improves comparability. -
Q: What is "CESMM"?
A: Civil Engineering Standard Method of Measurement. -
Q: What is “work breakdown structure” (WBS)?
A: Hierarchical breakdown of project scope to organise cost data. -
Q: What is “SMM7”?
A: The Standard Method of Measurement (UK), used before NRM2. -
Q: What is “BIM Quantity Take-off”?
A: Automated extraction of quantities using 3D models. -
Q: What are “contingency allowances”?
A: Budget for unforeseen works or risks. -
Q: Why is as-built measurement important?
A: For final account validation and contractor payment. -
Q: What is a “Schedule of Rates”?
A: A list of unit rates used for pricing measured works.
SECTION 2 — COST PLANNING / ESTIMATION
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Q: What is a cost plan?
A: A financial framework outlining construction costs at design stages. -
Q: What is elemental cost analysis?
A: Dividing costs by building elements (e.g., substructure, frame). -
Q: What are typical cost drivers?
A: Location, design complexity, material specification, programme. -
Q: What is “benchmarking”?
A: Using historical project data for early estimates. -
Q: What is “rate build-up”?
A: Calculating unit rates from labour, plant, materials, overheads. -
Q: What is “gross floor area” (GFA) estimation used for?
A: Preliminary estimating and cost/m² analysis. -
Q: Difference between CAPEX and OPEX?
A: CAPEX = construction cost; OPEX = operational & lifecycle cost. -
Q: What is life-cycle costing?
A: Evaluating total cost over building life, including maintenance. -
Q: What is sensitivity analysis?
A: Testing how cost changes with variations in assumptions. -
Q: What are escalation costs?
A: Allowances for inflation between estimate date and construction. -
Q: When do you issue Stage 2, 3, 4 cost plans?
A: Stage 2 Concept, Stage 3 Detailed Design, Stage 4 Technical Design. -
Q: What is “cost deviation”?
A: Difference between budget and current forecast. -
Q: What is a “cost check”?
A: Comparing design changes against the cost plan. -
Q: What is a “unit rate”?
A: Cost per unit (m², m³, m, item). -
Q: How do you assess project affordability?
A: Compare funding vs CAPEX forecast. -
Q: What is a “cost per functional unit”?
A: Cost per bed, per student room, per parking space. -
Q: Why is early cost estimating often inaccurate?
A: Limited design information and assumptions. -
Q: What are “preliminaries”?
A: Contractor overheads such as site management, welfare, scaffolding. -
Q: What is included in overheads & profit?
A: Corporate overheads + contractor profit margin. -
Q: What is a cash flow forecast?
A: Projection of monthly spending over project duration.
SECTION 3 — PROCUREMENTS & CONTRACTS
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Q: What are common procurement routes?
A: Traditional, Design & Build, Management Contracting, EPC. -
Q: Pros of Design & Build?
A: Single point of responsibility, speed, cost certainty. -
Q: Cons of D&B?
A: Less design control for client, possible lower quality. -
Q: What is a lump-sum contract?
A: Contractor agrees to a fixed price for defined scope. -
Q: What is remeasurement?
A: Payment based on measured quantities after construction. -
Q: What are provisional sums?
A: Budget placeholders for undefined works. -
Q: What is an FIDIC contract?
A: Standard contract suite for international construction. -
Q: Difference between provisional and prime cost sums?
A: PC sums relate to supply of materials only; provisional sums cover supply + installation. -
Q: What is an NEC contract known for?
A: Collaborative approach and early warnings. -
Q: What is “value of work done”?
A: Completed work certified for payment. -
Q: What is retention?
A: % withheld until defects are rectified. -
Q: What is an extension of time (EOT)?
A: Additional time granted due to employer or neutral events. -
Q: What is LD (liquidated damages)?
A: Pre-agreed charge for late completion. -
Q: What are contractor claims?
A: Requests for additional payment or time. -
Q: What is a final account?
A: Agreed statement of project cost at completion.
SECTION 4 — COST CONTROL & COMMERCIAL MANAGEMENT
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Q: What is earned value management (EVM)?
A: Method showing cost/time performance. -
Q: What is CPI in EVM?
A: Cost Performance Index = EV / AC. -
Q: What is variance analysis?
A: Identifying and explaining cost deviations. -
Q: What is a change order/variation?
A: Modification to contract scope or conditions. -
Q: How do you assess a variation?
A: Re-measure, apply contract rates, assess time impact. -
Q: What is cost reporting?
A: Periodic update of project cost, risks, and forecast. -
Q: Why monitor productivity rates?
A: To validate labour/plant cost accuracy. -
Q: What is a risk register?
A: List of risks with mitigation and cost impacts. -
Q: What is contingency drawdown?
A: Allocating contingency amounts as risks materialise. -
Q: What is contract administration?
A: Managing payments, variations, notices per contract terms. -
Q: What is a cost-to-complete forecast?
A: Estimate of remaining expenditure to finish works. -
Q: Why is baseline cost important?
A: Serves as benchmark for cost control. -
Q: What is “cost loading” in a programme?
A: Allocating costs to programme activities for cash flow. -
Q: What is procurement schedule?
A: Timeline for tendering, awarding packages, and material orders. -
Q: What is a commercial risk?
A: Any uncertainty that may affect project cost.
SECTION 5 — VALUE ENGINEERING / COST OPTIMISATION
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Q: What is value engineering (VE)?
A: Improving value by reducing cost without reducing function. -
Q: Key stages of VE?
A: Information → Analysis → Creativity → Evaluation → Implementation. -
Q: Examples of VE proposals?
A: Change façade materials, optimise structural grid, MEP alternatives. -
Q: What is “function analysis”?
A: Determining essential vs non-essential functions. -
Q: Difference between value engineering and cost cutting?
A: VE keeps performance same; cost cutting may reduce quality. -
Q: What is whole-life value?
A: Considering CAPEX + OPEX + sustainability. -
Q: Why is VE important early in design?
A: Maximum impact when design is flexible. -
Q: What is an alternative solution analysis?
A: Comparing multiple design options for cost/performance. -
Q: How do you justify VE savings?
A: Cost comparison and lifecycle evaluation. -
Q: What is standardisation in VE?
A: Using repeatable design elements to reduce cost.
SECTION 6 — BIM & DIGITAL QUANTIFICATION
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Q: How does BIM assist cost planning?
A: Provides accurate quantities, reduces errors. -
Q: What is 5D BIM?
A: Integrates cost with 3D model. -
Q: What are model-based quantities?
A: Quantities extracted directly from BIM elements. -
Q: What is COBie?
A: Data format for asset information in BIM. -
Q: Problems with BIM take-off?
A: Incorrect modelling, missing parameters, over-modelling. -
Q: Benefits of BIM for QS?
A: Faster take-offs, real-time cost updates, clash detection cost impact. -
Q: What is LOD?
A: Level of Detail/Development of BIM model. -
Q: What is QS involvement in BIM?
A: Define measurement parameters, validate model data. -
Q: Why verify model quantities manually?
A: Avoid dependence on modelling errors. -
Q: What is digital cost benchmarking?
A: Using databases/software to compare historical cost.
SECTION 7 — GENERAL RICS / QS INTERVIEW QUESTIONS
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Q: Why do you want to be a Chartered QS?
A: For professional credibility, ethical standards, and career progression. -
Q: What are RICS ethical principles?
A: Integrity, competence, service, respect, responsibility. -
Q: Give an example of conflict management.
A: Clear communication, referencing contract clauses, negotiation. -
Q: What is the QS role in pre-contract stage?
A: Cost planning, BoQ, procurement advice. -
Q: What is the QS role post-contract?
A: Valuations, variations, cost control, final accounts. -
Q: How do you ensure accuracy in your cost estimates?
A: Cross-checking, benchmarking, peer review. -
Q: How do you deal with incomplete drawings?
A: Make assumptions and document them clearly. -
Q: How do you manage cost overruns?
A: Early warnings, VE, risk mitigation, re-forecasting. -
Q: How do you ensure client satisfaction?
A: Transparency, timely reporting, reliable cost advice. -
Q: What differentiates a good QS?
A: Accuracy, communication, integrity, commercial awareness.
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