PEB Singapore PPE Mechanical study plan

Compute design cooling loads by hand for one office space and one dense-occupancy meeting room, showing every line of the CLTD/CLF or equivalent build-up with stated assumptions.

Size the supply and return duct runs for a single 0.5 m3/s system using the equal-friction method and verify against velocity and noise limits.

Calculate pump head and flow for a chilled-water circuit including coil, pipe, fitting and control-valve losses, and state the required NPSH margin.

Solve five mechanical integrity problems from first principles (pipe wall thickness under internal pressure, shaft torsional stress, support span, bolt preload, expansion loop).

Build a personal formula and unit-conversion sheet for Domains 1 and 2 and cross-check every unit by dimensional analysis.

Plot and interpret five psychrometric processes (coil cooling and dehumidification, mixing, reheat, evaporative cooling, economiser cycle) and calculate apparatus dew point, bypass factor and sensible heat ratio for each.

Apply the fan and pump affinity laws to two retrofit scenarios and quantify the change in flow, head, absorbed power and motor loading.

Select and justify AHU components, control-valve authority and damper selection for a given duty, explaining the consequence of poor authority.

Compare VAV, chilled-water fan coil and VRF systems on energy, space, maintenance and controls complexity for a 10-storey office and defend one choice in writing.

Quantify how outdoor-air ventilation rates and occupancy diversity change coil load, and state the design assumption you would lock in.

Run a qualitative HAZOP on a fuel-oil storage and transfer system, generating nodes, deviations, causes, consequences and safeguards in a structured worksheet.

Classify hazardous-area zones for a plant room with a flammable-gas release and specify the corresponding equipment protection concept, temperature class and ingress protection.

Apply the hierarchy of controls to three mechanical workshop hazards and write the permit-to-work elements for hot work and confined-space entry.

Assemble the fire-safety provisions for a mechanical plant room: compartmentation, separation, escape travel, detection and suppression basis, citing the applicable clause for each.

Investigate one constructed incident using 5-why and bow-tie analysis and derive corrective actions with owners and due dates.

Decompose a chiller plant replacement into a work breakdown structure and precedence network, then compute the critical path, total float and free float.

Resource-load an 8-week programme and set an earned-value baseline, calculating PV, EV, AC, SPI, CPI and estimate at completion for one progress scenario.

Draft an inspection and test plan covering pipe supports, hydrostatic pressure testing, flushing, chemical cleaning and commissioning of the chilled-water system.

Sequence the statutory submissions, inspections and approvals needed for a plant installation and list the handover records required (as-builts, O and M manuals, test packs, training records).

Assess a variation and an extension-of-time claim, quantifying the cost and time impact and stating the contractual basis for entitlement.

Compute life-cycle cost for two chiller options using NPV, simple payback and IRR, and run a sensitivity analysis on electricity tariff and plant life.

Estimate annual HVAC energy use from load factors or a simplified bin method and calculate the kWh and cost savings from a variable-speed drive retrofit.

Evaluate a heat-recovery, heat-pump or solar PV measure with a carbon account in kgCO2e per year and state the emission factor assumptions used.

Map a set of efficiency measures to recognised green-building or energy-management criteria and identify the evidence needed to claim each one.

Rank three capital projects by economic merit and justify the ranking when the cheapest first-cost option is not the best value.

Select and size a pump, an air compressor, a shell-and-tube heat exchanger and a pressure vessel for stated duties, applying design margins and an NPSH check.

Identify the registration, inspection and testing obligations that apply to a pressure vessel in service, and list the records a plant engineer must retain.

Build an FMEA for a compressed-air system, listing at least ten failure modes with severity, occurrence and detection scoring and an RPN ranking.

Lay out a plant room so that maintenance access, lifting paths, ventilation and material flow are all satisfied, and annotate the clearances.

Compare batch and continuous process configurations for one product on capital cost, changeover, labour and energy.

Resolve six constructed ethical dilemmas (conflict of interest, pressure to sign off non-compliant work, whistleblowing, facilitating payment, working outside competence, concealing a test failure) by stating the rule, the duty owed and the action you would take.

Explain the elements of a valid contract and how variations, extension of time, liquidated damages, retention and defects liability operate in a standard construction form.

Distinguish professional negligence from contractual liability and outline the practical effect on professional indemnity cover and record-keeping.

State the designer's and employer's statutory duties for safety and the boundary of a professional engineer's scope of practice, with the consequence of exceeding it.

Draft a short written response to a client instruction that is technically unsafe but commercially attractive, citing the governing obligation.

Sit two full-length timed mock examinations under open-book conditions and score at least 70 percent overall with no single domain below 60 percent.

Re-work every missed item into a one-page trap list grouped by failure type and re-test each trap until answered correctly twice.

Practise locating the governing clause in a code or standard within two minutes for ten typical exam prompts.

Condense all eight domains into a master revision sheet of six pages or fewer, with the highest-yield formulas, limits and procedural steps.

Rehearse the exam-day routine: time per question, flagging strategy, reference tabbing and the order in which you will attack the paper.