4AE3 U3 C1 QUZKECKO Medium Test
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Questions and Answers

Which of the following is NOT a fuel that can be used in a steam boiler?

  • Fuel oil
  • Natural gas
  • Wood
  • Electricity (correct)

    • Which of the following is a characteristic of a good heat transfer fluid?

  • It should be electrically conductive
  • It should have a high boiling point
  • It should be non-toxic (correct)
  • It should be transparent

    • Why is steam an effective heat transfer fluid?

  • It is transparent
  • It is electrically conductive
  • It has a high boiling point
  • It can transfer a lot of heat with a small mass (correct)

    • What is the volume expansion of steam compared to water at 100 degrees Celsius?

    <p>About 1600 times</p> Signup and view all the answers

    Which component of the steam cycle is responsible for condensing the steam?

    <p>Heat exchanger</p> Signup and view all the answers

    What happens if the steam does not spend enough time in the heat exchanger?

    <p>It flows directly to the condensate tank</p> Signup and view all the answers

    Which of the following is a primary duty of Power Engineers?

    <p>Producing steam</p> Signup and view all the answers

    Why is steam important in industrial processes?

    <p>It expands to several hundred times its volume</p> Signup and view all the answers

    How does water compare to other heat transfer fluids?

    <p>It is a good heat transfer fluid</p> Signup and view all the answers

    What is the main purpose of a steam trap in a unit heater?

    <p>To prevent the heater from filling up with condensate</p> Signup and view all the answers

    What is the function of a steam cycle in a boiler system?

    <p>To transfer heat energy from steam to machinery</p> Signup and view all the answers

    Which component of the steam cycle is responsible for venting the steam to atmosphere?

    <p>Condensate tank</p> Signup and view all the answers

    What is the purpose of the condensate tank in the steam cycle?

    <p>To collect condensate</p> Signup and view all the answers

    What is the main difference between a basic process steam system and a more complex energy plant?

    <p>All of the above</p> Signup and view all the answers

    Which of the following is NOT wasted when the steam is vented to atmosphere?

    <p>Electricity</p> Signup and view all the answers

    Which of the following is a key responsibility of Power Engineers?

    <p>Operating and maintaining power plant equipment</p> Signup and view all the answers

    What is the role of Power Engineers in large plants?

    <p>Supervising others to operate a shift</p> Signup and view all the answers

    What knowledge and abilities make Power Engineers ideal candidates for operating sophisticated processes and equipment?

    <p>Skilled and knowledgeable workers</p> Signup and view all the answers

    What must Power Engineers do when operating, testing, maintaining, or repairing equipment?

    <p>Strictly adhere to site-specific policies and procedure manuals</p> Signup and view all the answers

    What must all Power Engineers be able to do?

    <p>Identify process abnormalities</p> Signup and view all the answers

    What is the historical significance of the royal proclamation by Edward I of England in 1306?

    <p>It prohibited the use of sea coals in furnaces</p> Signup and view all the answers

    What was the original purpose of steam engines when they were first invented?

    <p>To increase mine output by removing water from mines</p> Signup and view all the answers

    Which of the following is NOT a responsibility of Power Engineers in modern plants?

    <p>Enforcing environmental regulations</p> Signup and view all the answers

    What is the nature of the work for Power Engineers in small plants?

    <p>All of the above</p> Signup and view all the answers

    Which of the following is NOT a responsibility of Power Engineers in smaller plants?

    <p>Hiring staff</p> Signup and view all the answers

    Which of the following is NOT a potential danger associated with mishandling large amounts of energy?

    <p>Higher fuel consumption</p> Signup and view all the answers

    Which of the following is a benefit of efficient energy conversion?

    <p>Reduced stack emissions</p> Signup and view all the answers

    What is one of the recommendations for maintaining good personal habits for shift workers?

    <p>Blocking out light during sleep periods</p> Signup and view all the answers

    What is one of the work habits that can promote a culture of looking out for each other among shift workers?

    <p>Encouraging team activities and interaction between workers</p> Signup and view all the answers

    What symptoms can shift workers experience due to sleep deprivation?

    <p>Upset stomach and lack of freshness after sleep</p> Signup and view all the answers

    Which of the following is a potential challenge faced by Power Engineers working in facilities that require continuous operation?

    <p>Exposure to hazardous materials</p> Signup and view all the answers

    What can happen to work performance when Power Engineers are placed on a shift schedule?

    <p>Deterioration can occur soon after</p> Signup and view all the answers

    Why is it important for Power Engineers to understand how shift work affects their lives outside of work?

    <p>To make necessary lifestyle adjustments</p> Signup and view all the answers

    What are some of the adverse conditions that Power Engineers may be exposed to while operating plants?

    <p>Temperature extremes, high humidity, and hazardous environments</p> Signup and view all the answers

    What are some baseline requirements for Power Engineers to fulfill their role?

    <p>Being knowledgeable and alert</p> Signup and view all the answers

    What is the impact of shift work on a Power Engineer's working and non-working life?

    <p>It can cause disruptions to sleep patterns and potential stresses on health, family, and social commitments.</p> Signup and view all the answers

    What is the circadian rhythm?

    <p>The natural, individual cycle of being tired and energized around the same time each day.</p> Signup and view all the answers

    What problems can occur when the working day does not match the body's circadian day?

    <p>Reduced sleep duration and symptoms of insomnia.</p> Signup and view all the answers

    What is a common piece of advice for shift workers regarding meal schedules?

    <p>Plan meals to help stay awake and alert during working hours, and asleep when at home.</p> Signup and view all the answers

    What health issues are shift workers more likely to suffer from compared to non-shift workers?

    <p>Infertility and heart disease.</p> Signup and view all the answers

    What is the temperature of superheated steam?

    <p>500°C</p> Signup and view all the answers

    What is the purpose of pressurizing and heating potatoes with steam in the food industry?

    <p>To remove the skin</p> Signup and view all the answers

    What is the primary function of steam in absorption refrigeration cooling systems?

    <p>To drive the refrigerant through the cooling cycle</p> Signup and view all the answers

    What happens to the steam in the steam cycle after it gives off heat in a unit heater?

    <p>It condenses back into water</p> Signup and view all the answers

    What is the purpose of a steam trap in a unit heater?

    <p>To regulate the flow of steam</p> Signup and view all the answers

    Which component of the steam cycle is responsible for preventing the steam from venting to atmosphere?

    <p>Condensate tank</p> Signup and view all the answers

    What happens to the steam in the heat exchanger in a typical steam cycle?

    <p>It flows directly to the condensate tank</p> Signup and view all the answers

    What is the purpose of the condensate tank in the steam cycle?

    <p>To collect and cool the condensed steam</p> Signup and view all the answers

    What is the main difference between a basic process steam system and a more complex energy plant?

    <p>The multiple steam-consuming processes</p> Signup and view all the answers

    What are the potential consequences of the steam venting to atmosphere?

    <p>Wasting heat and water</p> Signup and view all the answers

    Which of the following is a characteristic of steam as a heat transfer fluid?

    <p>It expands to several hundred times its volume when converted to steam</p> Signup and view all the answers

    What is the primary reason why industry uses steam as a heat transfer fluid?

    <p>To transfer heat energy effectively</p> Signup and view all the answers

    Why is water (especially in the form of steam) considered an ideal heat transfer fluid?

    <p>It expands to several hundred times its volume when converted to steam</p> Signup and view all the answers

    What is the main difference between a basic process steam system and a more complex energy plant?

    <p>The complexity of the equipment and processes involved</p> Signup and view all the answers

    What is the purpose of a steam cycle in a boiler system?

    <p>To control the equipment that produces and consumes steam</p> Signup and view all the answers

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