100 perguntas commercial engineer


🔹 Personal & Professional Background

  1. What do you do for a living?
    I work as a commercial engineer in an air conditioning company.

  2. How long have you worked in this field?
    I have worked in this field for about five years.

  3. Why did you choose this career?
    I chose this career because I like engineering and sales.

  4. What are your main responsibilities?
    I design solutions and talk to clients about their needs.

  5. Do you work more in the office or in the field?
    I work both in the office and visit clients sometimes.

🔹 Daily Work Activities

  1. What do you usually do in a typical day?
    I check emails, prepare proposals, and meet clients.

  2. Do you talk to customers every day?
    Yes, I talk to customers almost every day.

  3. What kind of clients do you have?
    We work with companies, offices, and sometimes private homes.

  4. Do you work alone or in a team?
    I work in a team, but I also have individual tasks.

  5. How do you organize your work?
    I use a schedule and prioritize important tasks.

🔹 Technical Knowledge

  1. What types of systems do you work with?
    I work with HVAC systems like split and central units.

  2. Do you need to understand technical drawings?
    Yes, I read and create technical drawings.

  3. What is the most important technical skill in your job?
    Understanding system design and energy efficiency is important.

  4. Do you use any software?
    Yes, I use design and calculation software.

  5. Is energy efficiency important in your work?
    Yes, it is very important for clients and the environment.

🔹 Sales & Business

  1. Do you sell products or services?
    I sell both products and installation services.

  2. How do you prepare a proposal?
    I analyze the client’s needs and calculate costs.

  3. Do you negotiate prices?
    Yes, I often negotiate prices with clients.

  4. What is the biggest challenge in sales?
    Convincing clients and dealing with competition.

  5. How do you build relationships with clients?
    I listen to them and offer good solutions.

🔹 Projects

  1. What kind of projects do you work on?
    I work on commercial and industrial projects.

  2. How long does a project usually take?
    It depends, but usually from a few weeks to months.

  3. Do you visit project sites?
    Yes, I visit sites to understand the conditions.

  4. What is the most difficult part of a project?
    Meeting deadlines and managing costs.

  5. Do you work with other engineers?
    Yes, I work with mechanical and electrical engineers.

🔹 Problem Solving

  1. What do you do when a system does not work well?
    I analyze the problem and suggest a solution.

  2. How do you handle customer complaints?
    I listen carefully and try to fix the problem quickly.

  3. Do you deal with emergencies?
    Sometimes, especially when systems stop working.

  4. How do you find solutions?
    I use my experience and technical knowledge.

  5. Do you learn from problems?
    Yes, every problem is a learning opportunity.

🔹 Communication

  1. How do you explain technical ideas to clients?
    I use simple language and examples.

  2. Do you give presentations?
    Yes, I present solutions to clients.

  3. Do you write reports?
    Yes, I write reports and proposals.

  4. Is English important in your job?
    Yes, I use English for technical documents.

  5. Do you talk to international clients?
    Sometimes, yes.

🔹 Products & Market

  1. What brands do you work with?
    I work with different international brands.

  2. What is popular in the market now?
    Energy-efficient and smart systems are popular.

  3. Do clients prefer cheaper or better quality systems?
    Some prefer cheap, but many want quality.

  4. How do you stay updated?
    I read articles and attend training.

  5. Is technology changing your work?
    Yes, technology is changing a lot.

🔹 Future & Career

  1. What are your career goals?
    I want to become a senior engineer or manager.

  2. Do you want to specialize more?
    Yes, in energy efficiency and smart systems.

  3. Do you take courses?
    Yes, I take courses to improve my skills.

  4. Where do you see yourself in 5 years?
    I see myself in a leadership position.

  5. Do you enjoy your job?
    Yes, I enjoy my job a lot.

🔹 Work Environment

  1. Do you travel for work?
    Yes, sometimes I travel to meet clients.

  2. Do you work under pressure?
    Yes, especially with deadlines.

  3. What do you like most about your job?
    I like solving problems and helping clients.

  4. What do you dislike?
    I don’t like tight deadlines.

  5. Do you have flexible hours?
    Sometimes, but usually I follow a schedule.

🔹 Teamwork

  1. Do you work with technicians?
    Yes, I work closely with technicians.

  2. How do you coordinate with your team?
    We use meetings and messages.

  3. Is teamwork important?
    Yes, teamwork is very important.

  4. Do you help new employees?
    Yes, I help them learn the job.

  5. Do you learn from your team?
    Yes, we share knowledge.

🔹 Client Interaction

  1. How do you find new clients?
    Through marketing and networking.

  2. Do clients trust your advice?
    Yes, when I explain clearly.

  3. How do you understand client needs?
    I ask questions and listen carefully.

  4. Do you follow up after a sale?
    Yes, I check if everything is working well.

  5. Do you get repeat clients?
    Yes, many clients come back.

🔹 Technical Challenges

  1. What is the hardest system to design?
    Large commercial systems are more complex.

  2. Do you work with green technology?
    Yes, we use eco-friendly solutions.

  3. What factors affect system design?
    Size, climate, and building type.

  4. Do you calculate cooling loads?
    Yes, it is part of my job.

  5. Do you use automation systems?
    Yes, many systems are automated now.

🔹 Learning & Skills

  1. What skills are important in your job?
    Technical knowledge and communication skills.

  2. Do you need math skills?
    Yes, for calculations and design.

  3. Do you need sales skills?
    Yes, very important.

  4. Do you learn every day?
    Yes, I learn new things often.

  5. Do you attend training sessions?
    Yes, regularly.

🔹 Industry Trends

  1. Is the HVAC industry growing?
    Yes, it is growing fast.

  2. Are there new technologies?
    Yes, like smart and energy-saving systems.

  3. Do clients care about sustainability?
    Yes, more and more.

  4. Is competition strong?
    Yes, there are many companies.

  5. How do you stay competitive?
    By offering good service and quality.

🔹 Personal Experience

  1. What was your first project?
    It was a small office installation.

  2. What is your biggest achievement?
    Completing a large commercial project.

  3. Have you made mistakes?
    Yes, but I learned from them.

  4. What motivates you?
    Success and client satisfaction.

  5. Do you feel stressed sometimes?
    Yes, but I manage it.

🔹 Future of Work

  1. Will your job change in the future?
    Yes, with new technologies.

  2. Will AI affect your job?
    Yes, it can help with design.

  3. Do you think your job is secure?
    Yes, there is always demand.

  4. Will systems become more efficient?
    Yes, definitely.

  5. Will you need new skills?
    Yes, always.

🔹 General Conversation

  1. Do you like working with people?
    Yes, I enjoy it.

  2. Do you prefer office or field work?
    I like a mix of both.

  3. What is your work schedule?
    I work from Monday to Friday.

  4. Do you work overtime?
    Sometimes, when needed.

  5. Do you have work-life balance?
    Yes, I try to balance both.

🔹 Wrap-up Questions

  1. What advice would you give to new engineers?
    Study hard and gain experience.

  2. Is your job difficult?
    Sometimes, but it is interesting.

  3. Do you enjoy meeting clients?
    Yes, it is part of my job.

  4. What makes a good engineer?
    Knowledge and communication skills.

  5. Do you plan to change jobs?
    No, I like my current job.

  6. Do you like learning new technologies?
    Yes, very much.

  7. What is your biggest challenge now?
    Managing multiple projects.

  8. Do you feel confident in your job?
    Yes, I feel confident.

  9. What is your next goal?
    To improve my technical skills.

  10. Are you happy with your career?
    Yes, I am happy with my career.


🔹 1. Conceitos Gerais

  • Air conditioning → Ar-condicionado
  • HVAC (Heating, Ventilation and Air Conditioning) → Aquecimento, Ventilação e Ar-condicionado
  • Cooling → Resfriamento
  • Heating → Aquecimento
  • Ventilation → Ventilação
  • Indoor environment → Ambiente interno
  • Thermal comfort → Conforto térmico
  • Airflow → Fluxo de ar
  • Temperature control → Controle de temperatura
  • Humidity → Umidade

🔹 2. Qualidade do Ar

  • Indoor Air Quality (IAQ) → Qualidade do ar interno
  • Air filter → Filtro de ar
  • Air purification → Purificação do ar
  • Fresh air → Ar fresco
  • Pollutants → Poluentes
  • Dust → Poeira
  • Ventilation system → Sistema de ventilação
  • Air exchange → Troca de ar

🔹 3. Eficiência Energética

  • Energy efficiency → Eficiência energética
  • Energy consumption → Consumo de energia
  • Energy savings → Economia de energia
  • Power usage → Uso de energia
  • Inverter system → Sistema inverter
  • High efficiency → Alta eficiência
  • Energy rating → Classificação energética
  • Sustainable solution → Solução sustentável

🔹 4. Custos & Negócios

  • Cost → Custo
  • Budget → Orçamento
  • Price → Preço
  • Installation cost → Custo de instalação
  • Operating cost → Custo operacional
  • Maintenance cost → Custo de manutenção
  • Return on investment (ROI) → Retorno sobre investimento
  • Total cost of ownership → Custo total de propriedade
  • Proposal → Proposta
  • Quotation → Orçamento / Cotação
  • Negotiation → Negociação

🔹 5. Manutenção & Operação

  • Maintenance → Manutenção
  • Preventive maintenance → Manutenção preventiva
  • Corrective maintenance → Manutenção corretiva
  • Breakdown → Falha / Quebra
  • Repair → Reparo
  • Technician → Técnico
  • Service contract → Contrato de serviço
  • Spare parts → Peças de reposição
  • Downtime → Tempo de parada

🔹 6. Equipamentos & Sistemas

  • Split system → Sistema split
  • Central system → Sistema central
  • VRF (Variable Refrigerant Flow) → Fluxo de refrigerante variável
  • Chiller → Chiller / Resfriador
  • Compressor → Compressor
  • Condenser → Condensador
  • Evaporator → Evaporador
  • Duct → Duto
  • Thermostat → Termostato
  • Control panel → Painel de controle

🔹 7. Instalação & Projetos

  • Installation → Instalação
  • Project → Projeto
  • Design → Projeto / Design técnico
  • Layout → Layout / Planta
  • Site visit → Visita técnica
  • Deadline → Prazo
  • Schedule → Cronograma
  • Commissioning → Comissionamento
  • Testing → Testes

🔹 8. Desempenho & Confiabilidade

  • Performance → Desempenho
  • Reliability → Confiabilidade
  • Efficiency → Eficiência
  • Capacity → Capacidade
  • Cooling load → Carga térmica
  • System failure → Falha do sistema
  • Durability → Durabilidade
  • Lifespan → Vida útil

🔹 9. Ruído & Conforto

  • Noise level → Nível de ruído
  • Silent operation → Operação silenciosa
  • Comfort → Conforto
  • Air distribution → Distribuição de ar
  • Temperature stability → Estabilidade da temperatura

🔹 10. Automação & Tecnologia

  • Automation → Automação
  • Smart system → Sistema inteligente
  • Remote control → Controle remoto
  • Building Management System (BMS) → Sistema de gestão predial
  • Sensor → Sensor
  • Monitoring → Monitoramento
  • Control system → Sistema de controle

🔹 11. Sustentabilidade

  • Sustainability → Sustentabilidade
  • Eco-friendly → Ecológico
  • Carbon footprint → Pegada de carbono
  • Green technology → Tecnologia verde
  • Refrigerant → Refrigerante
  • Environmental impact → Impacto ambiental

🔹 12. Cliente & Comunicação

  • Client → Cliente
  • Customer needs → Necessidades do cliente
  • Requirement → Requisito
  • Solution → Solução
  • Recommendation → Recomendação
  • Feedback → Feedback / Retorno
  • After-sales service → Pós-venda
  • Technical support → Suporte técnico
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