EGEE 101 EXAM 1 2025

Chemical - -What is the form of energy that is present in pizza that we eat? Nuclear Fission - -Which of the following sources of energy is non-renewable? Chemical - -What is the energy stored in the bonds that hold molecules together called? High to low temperature - -In what direction does thermal energy flow? Electricity - -energy of electrons in motion Potential - -What is the type of energy contained in the water stored behind a dam? Kilowatt-hour - -The unit of electrical energy is Radiant - -Wavelength is used to classify what type of energy? Force x displacement - -Which of the following is used to determine the work done? Visible - -Which of the following radiant energy can be seen by the human eye? Chemical - -What is the form of energy contained in a battery? Energy - -What is the capacity to do work known as? Mechanical - -What is the form of energy in a flying airplane? Defibrillator - -Which of the following is the only direct use of electrical energy without converting it to another form? Halogen - -What type of bulbs are mainly used for security lighting, car headlights and sports events? Space heating - -Which of the following consumes most of energy in the commercial sector? Fluorescent - -Which light bulb uses mercury vapor? add insulation - -What is the best way to cut home heating or cooling bills? Natural gas - -Which energy source is used most for US home heating? EGEE 101 EGEE 101 EGEE 101 Refrigerant - -What is the liquid that evaporates inside the refrigerator to "create" the cold temperature? Convection - -Which is the mode of heat transfer where liquid or gas moves, carrying heat with it? CCD - -What is the unit used to measure the amount of cooling needed in summer time? 1/4 - -What fraction of home energy is used for lighting in the US? Industry and manufacturing - -Which sector is the largest consumer of energy? Chemical - -Which industry uses the most energy? Space heating - -Which is the largest portion of energy consumed by homes? Center to surface of earth - -Which of the following temperature gradients is responsible for geothermal energy? Halogen - -Which of these produce the maximum heat? Coal - -In the US, most of the electricity is generated from Heat movers - -Refrigerators also known as? More windows south - -How can passive energy be utilized? Space heating - -Which of the following is the largest energy consumer at home? Radiation - -Which of these do not require a medium in transferring heat? Heat - -What form of energy output accounts for the inefficiency of incandescent lights? Compact fluorescent - -Which one of the following lighting devices consumes the lowest amount of energy? Pressure and temperature increase - -What happens during compression in a refrigerator? Geothermal - -What type of heating uses the heat contained within the Earth? Compressor - -Which component in the refrigerator raises the temperature of the refrigerant? Boiler fuel - -What do industries use to generate steam and hot water? EGEE 101 EGEE 101 Gasoline - -Which one of the following fuels finds maximum usage in transportation in the US? Natural gas - -Which primary energy source contributes the most to home heating requirements? North Pole - -Where do you think would the heating degree days would be the highest? High temperatures - -Which one of the following regions will have a high CDD or cooling degree days? HDD - -Which of the following is an indicator of heating requirements? Weather - -Which of the following is the biggest factor in home heating and cooling? Conduction - -What is the mode of heat transfer through a solid medium called? Moving particle and atom collide - -How is light produced? Resistance to heat transfer - -What does R-Value indicate? Increases - -What happens to the r-value of the insulation if the thickness increases? Expansion value - -Which component of a refrigerator lowers the temperature of the refrigerant? Electricity - -Which is the most common energy source used in commercial buildings? 7 years - -If the world demand for energy is growing at the rate of 10% per year, when would we expect the energy demand to be twice today's? Mechanical to electrical - -What is the function of a generator in a power plant? Thermal/heat - -In a light bulb, the non-useful, waste energy output is in the form of __________ energy. Mechanical - -In a car, the useful energy output is in the form of __________ energy. Wood - -In the US, we rely less on energy from ____________ than in earlier decades.