EGEE 102 online exam 1 2025 Questions
and Answers
One calorie is defined as the amount of energy that is required to raise the
temperature of _____. - ANSWER-1 g of water by 1 C.
Which of the following is a unit of power? - ANSWER-BTU/h
If Peter expends 1,500 calories running a mile in one hour and Samantha burns
1,500 calories riding a bike in forty-five minutes. Which one of the two spent the
greatest amount of energy? - ANSWER-They are the same
Nuclear fusion is a renewable source of energy. - ANSWER-True
In which one of the following lists are all energy sources examples of mechanical
energy? - ANSWER-Wind, Tidal energy, Coiled spring
If Peter expends 2,000 calories running a mile in one hour and Samantha burns
1,000 calories riding a bike in thirty minutes. Who exerted the greatest amount of
power? - ANSWER-Both exerted the same power
Energy can be converted from one from to another. - ANSWER-True
Geothermal heat can be used to produce electricity. - ANSWER-True
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,A 100 watt incandescent light bulb is operated for 120 hours, and a 15 watt
fluorescent light bulb is operated for the same period of time. At 10 cents per
kWh, what is the cost savings of the fluorescent bulb? - ANSWER-1.02
Energy = power x time of usage
Incand.= 100W x 120h = 12000Wh
=12 kWh
One BTU of energy is enough to do what? - ANSWER-Heat one pound of water
by one degree Fahrenheit.
The form of energy stored in gasoline is - ANSWER-Chemical
Energy can be converted to which of the following? - ANSWER-work, heat,
radiation
Units of energy when divided by time of usage give units of _____. - ANSWER-
Power
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, A refrigerator rated at 494 Watts running 13 h everyday is replaced by a new
refrigerator rated at 221 Watts and runs 8 h per day. What is the energy saving in
kWh for a week? - ANSWER-32.6
A refrigerator rated at 318 Watts running 11 h everyday. What is the energy
consumption in kWh for a week? - ANSWER-24.5
A BTU has more energy than a calorie. - ANSWER-True
Identify the list where all energy sources are non-renewable energy sources. -
ANSWER-Nuclear Fission (not fusion), Petroleum
An energy source is nonrenewable if _____. - ANSWER-C ) if the source cannot
be regenerated in a reasonable time period.
Which one of the following sustainable energy sources is producing significant
amount of renewable energy in the US? - ANSWER-Hydro
BUT
In the U.S., biomass (wood) contributes highest share of renewable energy
followed by hydro-electric
Coal reserves for the World at the present rate of consumption will last for about
________(ballpark figure). - ANSWER-200 years
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
and Answers
One calorie is defined as the amount of energy that is required to raise the
temperature of _____. - ANSWER-1 g of water by 1 C.
Which of the following is a unit of power? - ANSWER-BTU/h
If Peter expends 1,500 calories running a mile in one hour and Samantha burns
1,500 calories riding a bike in forty-five minutes. Which one of the two spent the
greatest amount of energy? - ANSWER-They are the same
Nuclear fusion is a renewable source of energy. - ANSWER-True
In which one of the following lists are all energy sources examples of mechanical
energy? - ANSWER-Wind, Tidal energy, Coiled spring
If Peter expends 2,000 calories running a mile in one hour and Samantha burns
1,000 calories riding a bike in thirty minutes. Who exerted the greatest amount of
power? - ANSWER-Both exerted the same power
Energy can be converted from one from to another. - ANSWER-True
Geothermal heat can be used to produce electricity. - ANSWER-True
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,A 100 watt incandescent light bulb is operated for 120 hours, and a 15 watt
fluorescent light bulb is operated for the same period of time. At 10 cents per
kWh, what is the cost savings of the fluorescent bulb? - ANSWER-1.02
Energy = power x time of usage
Incand.= 100W x 120h = 12000Wh
=12 kWh
One BTU of energy is enough to do what? - ANSWER-Heat one pound of water
by one degree Fahrenheit.
The form of energy stored in gasoline is - ANSWER-Chemical
Energy can be converted to which of the following? - ANSWER-work, heat,
radiation
Units of energy when divided by time of usage give units of _____. - ANSWER-
Power
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, A refrigerator rated at 494 Watts running 13 h everyday is replaced by a new
refrigerator rated at 221 Watts and runs 8 h per day. What is the energy saving in
kWh for a week? - ANSWER-32.6
A refrigerator rated at 318 Watts running 11 h everyday. What is the energy
consumption in kWh for a week? - ANSWER-24.5
A BTU has more energy than a calorie. - ANSWER-True
Identify the list where all energy sources are non-renewable energy sources. -
ANSWER-Nuclear Fission (not fusion), Petroleum
An energy source is nonrenewable if _____. - ANSWER-C ) if the source cannot
be regenerated in a reasonable time period.
Which one of the following sustainable energy sources is producing significant
amount of renewable energy in the US? - ANSWER-Hydro
BUT
In the U.S., biomass (wood) contributes highest share of renewable energy
followed by hydro-electric
Coal reserves for the World at the present rate of consumption will last for about
________(ballpark figure). - ANSWER-200 years
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
