PSU EGEE 102 Exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
True or false: Geothermal heat can be used to produce electricity. - CORRECT
ANSWER True
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? - CORRECT ANSWER $1.02
One calorie is defined as the amount of energy that is required to raise the temperature of
__________. - CORRECT ANSWER 1 g of water by 1 C
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? - CORRECT
ANSWER Both exerted the same power
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? -
CORRECT ANSWER They are the same
One BTU of energy is enough to do what? - CORRECT ANSWER Heat one pound of water
by one degree Fahrenheit
True or false: Nuclear fusion is a renewable source of energy. - CORRECT ANSWER True
Which of the following is a unit of power? - CORRECT ANSWER BTU/h
An energy source is nonrenewable if __________ - CORRECT ANSWER If the source
cannot be regenerated in a reasonable time period
, Units of energy when divided by time of usage give units of __________ - CORRECT
ANSWER Power
What can energy be converted into? - CORRECT ANSWER Work, heat, radiation
What are examples of energy sources of mechanical energy? - CORRECT ANSWER Wind,
Tidal energy, Coiled spring
True or false: Energy can be converted from one from to another. - CORRECT
ANSWER True
The form of energy stored in gasoline is - CORRECT ANSWER Chemical
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? - CORRECT
ANSWER 32.6
True or false: A BTU has more energy than a calorie. - CORRECT ANSWER True
What are non-renewable energy sources? - CORRECT ANSWER Nuclear Fission, Petroleum
A refrigerator rated at 278 Watts running 14 h everyday. What is the energy consumption in
kWh for a week? - CORRECT ANSWER 27.2
In which continent is the per capita energy consumption the highest in the world? - CORRECT
ANSWER North America
What two sustainable energy sources are producing significant amount of renewable energy in
the US? - CORRECT ANSWER Biomass (wood) then hydro-electric
ACTUAL Exam Questions and CORRECT
Answers
True or false: Geothermal heat can be used to produce electricity. - CORRECT
ANSWER True
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? - CORRECT ANSWER $1.02
One calorie is defined as the amount of energy that is required to raise the temperature of
__________. - CORRECT ANSWER 1 g of water by 1 C
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? - CORRECT
ANSWER Both exerted the same power
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? -
CORRECT ANSWER They are the same
One BTU of energy is enough to do what? - CORRECT ANSWER Heat one pound of water
by one degree Fahrenheit
True or false: Nuclear fusion is a renewable source of energy. - CORRECT ANSWER True
Which of the following is a unit of power? - CORRECT ANSWER BTU/h
An energy source is nonrenewable if __________ - CORRECT ANSWER If the source
cannot be regenerated in a reasonable time period
, Units of energy when divided by time of usage give units of __________ - CORRECT
ANSWER Power
What can energy be converted into? - CORRECT ANSWER Work, heat, radiation
What are examples of energy sources of mechanical energy? - CORRECT ANSWER Wind,
Tidal energy, Coiled spring
True or false: Energy can be converted from one from to another. - CORRECT
ANSWER True
The form of energy stored in gasoline is - CORRECT ANSWER Chemical
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? - CORRECT
ANSWER 32.6
True or false: A BTU has more energy than a calorie. - CORRECT ANSWER True
What are non-renewable energy sources? - CORRECT ANSWER Nuclear Fission, Petroleum
A refrigerator rated at 278 Watts running 14 h everyday. What is the energy consumption in
kWh for a week? - CORRECT ANSWER 27.2
In which continent is the per capita energy consumption the highest in the world? - CORRECT
ANSWER North America
What two sustainable energy sources are producing significant amount of renewable energy in
the US? - CORRECT ANSWER Biomass (wood) then hydro-electric
