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EGEE FINAL EXAM 2025 QUESTIONS AND ANSWERS In which one of the following list are all energy sources examples of mechanical energy? - ....ANSWER☑️☑️...-A) Wind, Tidal energy, Coiled spring B) Sun, Flowing water, Biomass C) Flowing water, High pressure steam, Fuel oil D) Wood, Flowing water, High pressure steam Feedback: Wind, Tidal energy, Coiled spring, Flowing water, High pressure steam are examples of mechanical energy Sun is an example of nuclear energy Biomass, Fuel oil, Wood are examples of Chemical Energy One kilo calorie is equal to how many calories? - ....ANSWER☑️☑️...-1000 The energy demand in United States accounts for approximately _____ percent of the world's energy demand. - ....ANSWER☑️☑️...-25 Which one of the following energy conversion devices has the lowest energy efficiency? - ....ANSWER☑️☑️...-Feedback: Incandescent light bulb has an efficiency of 5%, Fluorescent light bulb has an efficiency of 20%, Generator has an efficiency of 97% and Electric motor has an efficiency of 90%. Refer to screen 9&23 in 'Lesson 3: Energy Efficiency' Which of the following is NOT true about energy conversion devices? ....ANSWER☑️☑️...-A)Total Energy Input = Energy Dissipated to the surroundings FOR STUDY PURPOSES ONLY ©️ 2025 ALL RIGHTS RESERVED 1