PSU EGEE 102 Exam 1 2025 Questions
and Answers
True or false: Geothermal heat can be used to produce electricity. -
....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? - ....ANSWER ...-$1.02
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
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
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
One BTU of energy is enough to do what? - ....ANSWER ...-Heat one pound of
water by one degree Fahrenheit
True or false: Nuclear fusion is a renewable source of energy. - ....ANSWER ...-
True
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1
, Which of the following is a unit of power? - ....ANSWER ...-BTU/h
An energy source is nonrenewable if __________ - ....ANSWER ...-If the source
cannot be regenerated in a reasonable time period
Units of energy when divided by time of usage give units of __________ -
....ANSWER ...-Power
What can energy be converted into? - ....ANSWER ...-Work, heat, radiation
What are examples of energy sources of mechanical energy? - ....ANSWER ...-
Wind, Tidal energy, Coiled spring
True or false: Energy can be converted from one from to another. - ....ANSWER ...-
True
The form of energy stored in gasoline is - ....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? -
....ANSWER ...-32.6
True or false: A BTU has more energy than a calorie. - ....ANSWER ...-True
What are non-renewable energy sources? - ....ANSWER ...-Nuclear Fission,
Petroleum
A refrigerator rated at 278 Watts running 14 h everyday. What is the energy consumption
in kWh for a week? - ....ANSWER ...-27.2
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 2
and Answers
True or false: Geothermal heat can be used to produce electricity. -
....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? - ....ANSWER ...-$1.02
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
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
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
One BTU of energy is enough to do what? - ....ANSWER ...-Heat one pound of
water by one degree Fahrenheit
True or false: Nuclear fusion is a renewable source of energy. - ....ANSWER ...-
True
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1
, Which of the following is a unit of power? - ....ANSWER ...-BTU/h
An energy source is nonrenewable if __________ - ....ANSWER ...-If the source
cannot be regenerated in a reasonable time period
Units of energy when divided by time of usage give units of __________ -
....ANSWER ...-Power
What can energy be converted into? - ....ANSWER ...-Work, heat, radiation
What are examples of energy sources of mechanical energy? - ....ANSWER ...-
Wind, Tidal energy, Coiled spring
True or false: Energy can be converted from one from to another. - ....ANSWER ...-
True
The form of energy stored in gasoline is - ....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? -
....ANSWER ...-32.6
True or false: A BTU has more energy than a calorie. - ....ANSWER ...-True
What are non-renewable energy sources? - ....ANSWER ...-Nuclear Fission,
Petroleum
A refrigerator rated at 278 Watts running 14 h everyday. What is the energy consumption
in kWh for a week? - ....ANSWER ...-27.2
…FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 2
