EGEE 102 Final Exam QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Nuclear fusion is a renewable source of energy.
T/F - (answer)TRUE
Energy can be converted to which of the following?
Heat
Radiation
Work
All of the Above - (answer)all of the above
The energy possessed by a ball thrown by a quarterback is of the form:
Mechanical
Radiation
Chemical
Thermal - (answer)Mechanical
Which consumes the least amount of energy per day?
Eating your recommended amount of Calories
Driving a car 18 miles
Heating a house in the US
Powering a 100 W lightbulb for 24 hours - (answer)Eating your recommended amount of Calories
Energy from the Sun is coming to the earth in the form of
Radiation
,EGEE 102 Final Exam QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Mechanical
Chemical
Nuclear - (answer)Radiation
Energy can be converted from one form to another.
T/F - (answer)TRUE
Which one of the following is a unit of power?
Joule
Btu/h
Watt/hour
Quad - (answer)Btu/h
One BTU of energy is enough to do what?
Heat your room to a comfortable temp
Heat one pound of water by one degree F
Heat one gram of water by one degree C
Heat one gallon of water by one degree F - (answer)Heat one pound of water by one degree Fahrenheit
One calorie is defined as the amount of energy that is required to raise the temperature of _____.
1 lb of water by 1 degree F
1 g of water by 1 degree C
1 lb of water by 1 degree C
1 gal of water by 1 degree C - (answer)1 g of water by 1 degree C
, EGEE 102 Final Exam QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
A 108 watt incandescent light bulb is operated for 63 hours, and a 10 watt LED light bulb is operated for
the same period of time. At 0.1 dollars per kWh, what is the cost savings (units of $) of the LED bulb?
Answer to two decimal places, do not include unit symbols. - (answer)108 W x 63 = 6,804/1000 = 6.804
10 W x 63 = 630/1000 = 0.63
6.804-0.63 = 6.174
6.174 x 0.1 = 0.62
An electric lightbulb rated for 87 Watts is used for 5 hours. How much energy is burned? Answer in
KWhs, do not include units into the space. - (answer)87 W x 5 hours = 435/1000 = 0.435
Which of these fuels has the smallest percent of the the global energy supply?
wind
coal
oil
natural gas - (answer)Wind
The U.S. has highest crude oil reserves in the world.
T/F - (answer)FALSE
Which energy source accounts for the greatest proportion of electricity generation in the US?
Natural gas
Petroleum
Coal
Hydro - (answer)Natural Gas
ANSWERS) |ALREADY GRADED A+
Nuclear fusion is a renewable source of energy.
T/F - (answer)TRUE
Energy can be converted to which of the following?
Heat
Radiation
Work
All of the Above - (answer)all of the above
The energy possessed by a ball thrown by a quarterback is of the form:
Mechanical
Radiation
Chemical
Thermal - (answer)Mechanical
Which consumes the least amount of energy per day?
Eating your recommended amount of Calories
Driving a car 18 miles
Heating a house in the US
Powering a 100 W lightbulb for 24 hours - (answer)Eating your recommended amount of Calories
Energy from the Sun is coming to the earth in the form of
Radiation
,EGEE 102 Final Exam QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Mechanical
Chemical
Nuclear - (answer)Radiation
Energy can be converted from one form to another.
T/F - (answer)TRUE
Which one of the following is a unit of power?
Joule
Btu/h
Watt/hour
Quad - (answer)Btu/h
One BTU of energy is enough to do what?
Heat your room to a comfortable temp
Heat one pound of water by one degree F
Heat one gram of water by one degree C
Heat one gallon of water by one degree F - (answer)Heat one pound of water by one degree Fahrenheit
One calorie is defined as the amount of energy that is required to raise the temperature of _____.
1 lb of water by 1 degree F
1 g of water by 1 degree C
1 lb of water by 1 degree C
1 gal of water by 1 degree C - (answer)1 g of water by 1 degree C
, EGEE 102 Final Exam QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
A 108 watt incandescent light bulb is operated for 63 hours, and a 10 watt LED light bulb is operated for
the same period of time. At 0.1 dollars per kWh, what is the cost savings (units of $) of the LED bulb?
Answer to two decimal places, do not include unit symbols. - (answer)108 W x 63 = 6,804/1000 = 6.804
10 W x 63 = 630/1000 = 0.63
6.804-0.63 = 6.174
6.174 x 0.1 = 0.62
An electric lightbulb rated for 87 Watts is used for 5 hours. How much energy is burned? Answer in
KWhs, do not include units into the space. - (answer)87 W x 5 hours = 435/1000 = 0.435
Which of these fuels has the smallest percent of the the global energy supply?
wind
coal
oil
natural gas - (answer)Wind
The U.S. has highest crude oil reserves in the world.
T/F - (answer)FALSE
Which energy source accounts for the greatest proportion of electricity generation in the US?
Natural gas
Petroleum
Coal
Hydro - (answer)Natural Gas
