Questions and CORRECT Answers
In which one of the following lists are all energy sources examples of mechanical energy?
Wind, Tidal Energy, Coiled Spring
Sun, Flowing water, Biomass
Flowing water, High pressure steam, Fuel oil
Wood, Flowing water, high pressure steam - CORRECT ANSWER Wind, Tidal energy,
coiled spring
From the following, identify the group where all energy sources are renewable energy sources
Solar, Nuclear Fusion
Nuclear Fission, Biomass
Wind, Petroleum
Tidal, Coal - CORRECT ANSWER Solar, Nuclear Fusion
From the following, identify the list where all energy sources are non-renewable energy sources
Nuclear Fission, Petroleum
Solar, Biomass
Nuclear Fusion, Coal
Natural Gas, TIdal - CORRECT ANSWER Nuclear Fission, Petroleum
One food calorie is equal to how many calories? - CORRECT ANSWER 1000
, The energy demand in US accounts for approx. ____ percent of the world's energy demand -
CORRECT ANSWER 25
Which of the following energy conversion devices has the highest energy efficiency
Generator
Steam Turbine
Automobile engine
Incandescent Light bulb - CORRECT ANSWER Generator
Which of the following is true about energy conversion devices?
Total Energy Input = Useful Energy Output + Energy Dissipated to the surroundings
Total Energy Input = Useful Energy Output
Total Energy Input = Energy Dissipated to the surroundings
Total Energy Input = Efficiency X Total Energy Output - CORRECT ANSWER Total Energy
Input = Useful Energy Output + Energy Dissipated to the surroundings
From a car, useful energy output is ______ - CORRECT ANSWER Mechanical
Which of the following is an odd set of units
kW, MW, BTU/s, J/s
J,Watt-hr, BTU/s, kW/h
Cal/hr, J/s, BTU/s, Watt - CORRECT ANSWER J,Watt-hr, BTU/s, kW/h
In a heat engine, ______ energy is converted into mechanical energy - CORRECT
ANSWER Thermal