50 AI Prompts for Engineers: Templates for Every Discipline

Act as a senior mechanical engineer specializing in heat transfer. I have a [component type] made of [material] operating at [temperature range]. The component interfaces with [adjacent parts] and must dissipate [X watts] of heat. Analyze the thermal path. Recommend cooling strategies. Calculate estimated junction temperatures using simplified 1D resistance network methods. List all assumptions clearly.

Act as a GD&T specialist. Perform a worst-case tolerance stack-up analysis for this assembly: [describe assembly with dimensions and tolerances]. There are [N] parts in the stack. Calculate the maximum and minimum gap/interference at the critical interface. Then perform an RSS statistical analysis assuming normal distributions. Present results in a table format showing each contributor.

Act as a materials engineer. I need to select a material for [component] that must withstand [load conditions], operate in [environment], and cost under [$/unit]. Compare three candidate materials across these criteria: tensile strength, yield strength, fatigue life, corrosion resistance, machinability, and cost. Present a weighted decision matrix. Recommend the best option with justification.

Act as an FEA analyst. I am setting up a finite element analysis for [component/assembly]. The loading includes [load types and magnitudes]. Boundary conditions are [describe constraints]. Generate a pre-processing checklist covering: mesh type and element size recommendations, material model selection, contact definitions, convergence criteria, and common pitfalls for this type of analysis.

Act as a DFM consultant for [manufacturing process: CNC machining/injection molding/sheet metal/casting]. Review this part design: [describe geometry, dimensions, material]. Identify features that will increase cost or manufacturing difficulty. Suggest specific design changes to reduce cost by at least 20% while maintaining function. Flag any features that violate standard DFM guidelines.

Act as a reliability engineer. Create a Design Failure Mode and Effects Analysis for [component/system]. Include at least 10 failure modes. For each, provide: failure mode description, potential effect, severity rating (1-10), potential cause, occurrence rating (1-10), current design controls, detection rating (1-10), and calculated RPN. Prioritize by RPN and recommend actions for any RPN above 100.

Act as a vibration analyst. I have a [rotating/reciprocating] machine operating at [RPM] mounted on [foundation type]. Operators report [symptom: noise/vibration/bearing failures]. Outline a vibration analysis plan: which measurements to take, sensor placement locations, frequency ranges of interest, expected fault frequencies for [bearing type/gear mesh], and acceptance criteria per ISO 10816.

Act as a hydraulic systems engineer. Size a hydraulic circuit for a [application] that must generate [force] at [speed] with [duty cycle]. Specify pump displacement, system pressure, flow rate, accumulator size if needed, and valve ratings. Calculate heat generation and determine if a cooler is required. Reference ISO 4413 for design standards.

Act as a mechanical design engineer. Draft an Engineering Change Order (ECO) for the following change: [describe what changed and why]. Include: affected part numbers, revision levels, reason for change (corrective/preventive/improvement), description of change, impact on form/fit/function, affected documents (drawings, BOMs, specs), required approvals, and implementation plan (immediate/at next build/phase-in).

Act as a test engineer. Develop a test protocol for validating [component/system] against [specification/requirement]. Include: test objectives, pass/fail criteria with specific values, required test equipment and calibration requirements, sample size and selection criteria, test procedure steps, data recording format, and statistical analysis method for results.

Act as a failure analysis engineer. Conduct a root cause analysis for this failure: [describe failure mode, when it occurred, operating conditions]. Use the 5-Why method and Ishikawa diagram structure. Consider these categories: material, method, machine, man, measurement, environment. Provide the most likely root cause, supporting evidence needed to confirm, and three corrective actions ranked by effectiveness.

Act as a product engineer. Audit this BOM for [assembly]: [paste BOM or describe structure]. Check for: missing components, incorrect quantities, duplicate entries, non-standard parts that could be replaced with catalog items, single-source risks, and obsolescence risks. Estimate potential cost savings from standardization. Flag any items without a specified manufacturer part number.

Act as a concrete technology specialist. Review this concrete mix design for [application: foundation/bridge deck/pavement]: cement content [X kg/m³], w/c ratio [X], aggregate gradation [describe], admixtures [list]. Check against ACI 318 requirements for [exposure class]. Evaluate workability, durability, and 28-day strength expectations. Suggest modifications if any parameter falls outside recommended ranges.

Act as a civil/hydraulic engineer. Calculate the stormwater runoff for a [X-acre] site with [land use types and percentages]. Use the Rational Method with a [X-year] storm event for [city/region]. Determine peak flow rates for each sub-catchment. Size the main storm drain using Manning's equation. Check velocity constraints (min 2 fps, max 10 fps). Present results in a drainage table.

Act as a geotechnical engineer. Interpret these soil boring results: [paste boring log data or describe SPT values, soil types, water table depth]. For a proposed [building type] with [X-story/load], recommend: foundation type (spread footing, mat, or deep foundation), estimated allowable bearing pressure, settlement estimates, and any ground improvement needed. Flag any concerning soil conditions.

Act as a traffic engineer. Outline a Traffic Impact Study for a proposed [development type] with [X units/sf] at [intersection/corridor]. Include: trip generation using ITE Trip Generation Manual (identify land use codes), trip distribution methodology, existing intersection LOS analysis scope, future year analysis scenarios, recommended mitigation measures format, and required agency coordination.

Act as a construction project manager. Create a CPM schedule outline for [project type: residential building/bridge/road]. Include major activities, typical durations, predecessor relationships, and critical path identification. Assume [X months] total duration. Group activities by phase: mobilization, earthwork, structural, MEP, finishes, site work, closeout. Identify the top 5 schedule risk items.

Act as a specifications writer. Draft CSI MasterFormat specification section [number] for [product/system] on a [project type]. Include: Part 1 (General) with scope, references, submittals, quality assurance; Part 2 (Products) with materials, performance requirements, manufacturer qualifications; Part 3 (Execution) with installation procedures, field quality control, protection. Reference current ASTM and ACI standards.

Act as an environmental engineer. Create a preliminary environmental screening checklist for a [project type] on a [X-acre] site in [location type: urban/suburban/rural]. Cover: wetlands and waters of the US, threatened and endangered species, cultural/historical resources, hazardous materials (Phase I ESA triggers), air quality permits, noise impacts, and stormwater permitting requirements. Identify which items trigger further study.

Act as a cost estimator. Create a quantity takeoff template for [project type]. Include line items for: earthwork (cut, fill, haul), concrete (by element: footings, walls, slabs with formwork and rebar), structural steel (by member type), site utilities (by pipe diameter and length), and paving. Provide appropriate units of measure and common waste/overrun factors for each item.

Act as a project engineer. Draft a response to this RFI: [paste RFI question about design intent/clarification]. Provide: a clear direct answer, reference to applicable drawing sheet and detail numbers, any specification section references, whether this response affects cost or schedule, and whether a bulletin or change order is required. Keep the response under 200 words.

Act as a project engineer. Create a submittal review checklist for [product: structural steel/mechanical equipment/electrical gear]. Include items to verify: compliance with specified standards, material certifications, shop drawing accuracy against contract documents, finish and coating requirements, delivery and storage requirements, and warranty documentation. Note common rejection reasons for this product type.

Act as a value engineer. Propose three value engineering alternatives for [building system/component] on a [project type]. For each alternative: describe the proposed change, estimate cost savings (percentage of original), assess impact on quality/performance/schedule, identify risks, and provide a recommendation. The current design uses [describe current approach and approximate cost].

Act as a field engineer. Create a categorized punch list template for [project type] at substantial completion. Organize by CSI division. Include common deficiency descriptions for: concrete (honeycombing, cracking, finish), structural steel (connection issues, fireproofing), architectural (door hardware, ceiling grid, paint), MEP (labeling, testing, balancing). Provide severity ratings: life-safety, code, contractual, cosmetic.

Act as a professional electrical engineer. Perform an NEC Article 220 load calculation for a [building type] with [X square feet]. Include: general lighting load per Table 220.12, receptacle loads, fixed appliance loads, HVAC loads (largest motor calculation per 430.24), demand factors per Table 220.42, and total service size determination. Show all calculations step by step.

Act as a power systems engineer. Set up a short circuit analysis for a [building/facility] electrical system. The utility source is [voltage/available fault current at PCC]. The main transformer is [kVA rating, impedance percentage]. Calculate available fault current at: main switchboard, distribution panels, and motor control centers. Determine required interrupting ratings per NEC 110.9. Show impedance diagram.

Act as an electrical engineer specializing in power quality. Our facility has a [X kW] load at [X power factor] operating at [voltage]. The utility charges a penalty below [X PF]. Calculate: required kVAR of capacitor bank, recommended capacitor bank configuration (fixed vs. switched steps), harmonic concerns with [% nonlinear load], and estimated annual savings from power factor correction.

Act as a controls engineer. Write a sequence of operations for a [system: HVAC AHU/pump station/conveyor]. Include: startup sequence, normal operating mode, setpoints and control loops (P/PI/PID with typical gain values), safety interlocks and alarm setpoints, shutdown sequence (normal and emergency), and failure mode responses. Reference applicable standards (ASHRAE, NFPA, UL).

Act as an electrical designer. Review this panel schedule: [describe or paste panel schedule]. Check for: NEC compliance (conductor sizing per 310.16, breaker sizing, 80% rule for continuous loads), balanced phase loading (flag imbalance above 10%), spare capacity (minimum 20% recommended), proper ground fault protection requirements, and arc flash labeling requirements per NFPA 70E.

Act as an electrical engineer. Size a cable tray system for [X cables] running [distance] from [origin to destination]. Cable types include: [list cable types, sizes, and quantities]. Calculate: minimum tray width per NEC 392, fill area calculations, derating factors for bundled cables per 310.15(C), support spacing, and bend radius requirements. Specify tray type (ladder, solid bottom, wire mesh) with justification.

Act as a lighting designer. Develop lighting design criteria for a [space type: office/warehouse/hospital/school]. Include: target illuminance levels per IES recommendations, uniformity ratios, color temperature and CRI requirements, glare ratings (UGR limits), emergency lighting requirements per NEC 700/701, energy density targets per ASHRAE 90.1, and recommended luminaire types with typical spacing.

Act as a power systems engineer. Design a grounding electrode system for a [building type] in [soil type] with measured soil resistivity of [X ohm-meters]. Include: grounding electrode types and quantities per NEC 250, ground grid layout, calculated ground resistance target, conductor sizing for equipment grounding per 250.122, bonding requirements, and testing procedure recommendations.

Act as an electrical engineer. Analyze motor starting for a [X HP, X voltage] motor on a [describe power system]. Calculate: locked rotor current and starting kVA, voltage drop at the motor terminals and upstream bus during starting, compare DOL, wye-delta, soft starter, and VFD starting methods. Recommend the best starting method considering [constraints: utility flicker limits, process requirements, budget].

Act as a safety engineer. Define the scope of work for an arc flash study at [facility type] with [X panels/switchboards]. Include: data collection requirements, system modeling approach per IEEE 1584-2018, protective device coordination review, labeling requirements per NFPA 70E, PPE category determinations, recommended mitigation strategies for any incidents above Category 2, and report deliverables.

Act as a controls engineer. Design the program structure for a PLC controlling [process/machine]. Define: I/O list with tag naming convention, program organization (main routine, subroutines by function), state machine for operational modes, alarm management structure, HMI screen hierarchy, and communication protocol configuration. Use IEC 61131-3 structured text or ladder logic conventions.

Act as a senior electrical engineer. Review this one-line diagram description: [describe system from utility to loads]. Check for: proper protective device coordination, transformer sizing adequacy, NEC compliance for conductor sizing, available fault current annotations at each bus, transfer switch configuration for emergency systems, metering locations, and surge protection requirements.

Act as a senior software architect. Write an Architecture Decision Record (ADR) for choosing [technology/pattern] over [alternatives]. Include: context and problem statement, decision drivers (performance, scalability, team expertise, cost), considered options with pros/cons, decision outcome, and consequences (positive, negative, risks). Follow the MADR template format.

Act as a principal engineer. Create a code review checklist for a [language/framework] codebase. Cover: correctness (edge cases, error handling), security (OWASP Top 10 relevance), performance (N+1 queries, unnecessary allocations, algorithmic complexity), maintainability (naming, single responsibility, test coverage), and operational readiness (logging, monitoring hooks, graceful degradation). Prioritize items by severity.

Act as a database architect. Design a schema for [domain: e-commerce/SaaS/social] using [PostgreSQL/MySQL]. Requirements: [list key entities and relationships]. Include: table definitions with column types and constraints, primary and foreign keys, indexes for common query patterns, normalization rationale (3NF with justified denormalizations), and estimated row counts for capacity planning.

Act as a backend engineer. Write an OpenAPI 3.0 specification for a [resource] API. Include: CRUD endpoints with path parameters, request/response schemas with example values, authentication requirements (Bearer/API key), pagination strategy, error response format with standard error codes, rate limiting headers, and versioning approach. Follow REST conventions.

Act as a performance engineer. Audit this [application/service] for performance issues. Current symptoms: [describe: slow response times, high memory usage, CPU spikes]. Tech stack: [list]. Review these areas: database query efficiency, caching strategy, connection pooling, async processing opportunities, memory leak indicators, and CDN/compression utilization. Prioritize fixes by estimated impact.

Act as a DevOps engineer. Design a CI/CD pipeline for a [application type] deployed to [platform: AWS/GCP/Azure/Kubernetes]. Include: source control branching strategy, build stage (linting, type checking, unit tests), integration test stage, security scanning (SAST/DAST/dependency audit), staging deployment with smoke tests, production deployment strategy (blue-green/canary/rolling), and rollback procedure.

Act as an SRE. Write a blameless postmortem for this incident: [describe what happened, duration, impact]. Include: timeline of events (detection, response, mitigation, resolution), root cause analysis (distinguish between trigger and underlying cause), impact assessment (users affected, revenue impact, SLA breach), action items with owners and deadlines, and lessons learned. Identify what went well during response.

Act as a tech lead. Assess the technical debt in [codebase/system area]. Categories to evaluate: outdated dependencies (security risk level), test coverage gaps (critical paths untested), architectural violations (coupling, circular dependencies), documentation staleness, infrastructure as code drift, and monitoring blind spots. Assign each item a priority (P0-P3) with estimated remediation effort.

Act as a systems architect. Write a design document for [feature/system]. Include: problem statement, goals and non-goals, high-level design with component diagram, detailed design of key components, data model changes, API contracts, infrastructure requirements, security considerations, monitoring and alerting plan, rollout plan with feature flags, and open questions. Target audience is senior engineers.

Act as a performance engineer. Create a load testing plan for [application/API]. Include: test objectives and success criteria (response time P95, P99, error rate thresholds), test scenarios (baseline, stress, spike, soak), user journey scripts to simulate, test data requirements, environment specifications, monitoring dashboards needed during test, and results reporting template. Tool recommendation: [k6/Locust/Gatling].

Act as a security engineer. Create a threat model for [application/feature] using the STRIDE framework. Include: system context diagram with trust boundaries, asset inventory (data classification), threat enumeration per STRIDE category, risk rating (likelihood × impact), existing mitigations, recommended additional controls prioritized by risk, and residual risk acceptance criteria.

Act as a senior engineer. Plan the migration from [old system/version] to [new system/version]. Include: inventory of affected components, dependency mapping, data migration strategy (ETL pipeline or dual-write), backward compatibility requirements, feature parity checklist, rollback plan, testing strategy for migration validation, communication plan for stakeholders, and phased rollout schedule.

Act as an SRE. Design a monitoring and alerting strategy for [service/platform]. Define: golden signals (latency, traffic, errors, saturation) with specific metric names, alert thresholds (warning vs. critical), dashboard layout with key visualizations, on-call runbook outlines for top 5 alert types, SLI/SLO definitions, and error budget policies. Specify tools: [Prometheus/Datadog/CloudWatch].

Act as a staff engineer. Write an RFC for [proposed technical change]. Include: motivation (why now, what problem), proposed solution with technical details, alternatives considered with tradeoffs, compatibility and migration concerns, resource requirements (engineering time, infrastructure cost), timeline with milestones, success metrics, and risks with mitigations. Request specific feedback areas from reviewers.