EGEE 101 Exam 2 UPDATED ACTUAL
Exam Questions and CORRECT
Answers
A Cogeneration power plant generates both electric power and useful thermal energy from the
same fuel source.
A) True
B) False - CORRECT ANSWER - A) True
Central distribution is more efficient than distributed generation for transmitting electricity.
A) True
B) False - CORRECT ANSWER - B) False
Which among the following does not use a generator to produce electricity?
A) Steam power plant
B) Photovoltaic cells
C) Hydroelectric power plant
D) Nuclear power plant - CORRECT ANSWER - B) Photovoltaic cells
In a nuclear power plant, nuclear reactions are used for converting water into steam.
A) True
B) False - CORRECT ANSWER - A) True
Electric power is measured in terms of voltage.
A) True
B) False - CORRECT ANSWER - B) False- unit of electric power is Watts
,Wind turbine converts the kinetic energy of air into mechanical energy through the rotation of
blades.
A) True
B) False - CORRECT ANSWER - A) True
Electrical energy is measured in terms of KWh
A) True
B) False - CORRECT ANSWER - A) True
A step-up transformer is used to decrease the voltage, so that electricity can be transmitted over
long distances.
A) True
B) False - CORRECT ANSWER - B) False
Central distribution uses coal, nuclear, hydropower or gas powered plants to generate and
transmit electricity over long distances.
A) True
B) False - CORRECT ANSWER - A) True
Which power plant uses both gas and steam turbine to produce electricity?
A) Hydroelectric power plant
B) Combined cycle power plant
C) Cogeneration power plant
D) Gas turbine power plant - CORRECT ANSWER - B) Combined cycle power plant
High voltage transmission lines are used to carry electricity over long distances.
A) True
B) False - CORRECT ANSWER - A) True
, Electricity can be generated from fossil fuels.
A) True
B) False - CORRECT ANSWER - A) True- Fossil fuels such as coal or natural gas are used to
generate electricity in power plants. Chemical energy in fossil fuels is converted into electricity
in these plants.
In a power plant, chemical energy is converted to what useful end product?
A) Mechanical energy
B) Electrical energy
C) Thermal energy
D) None of the above - CORRECT ANSWER - B) Electrical energy- Chemical Energy is
converted into thermal energy in the boiler, which is then converted to mechanical energy in the
turbine followed by generation of electricity by the generator.
A generator works on the principle of electromagnetic induction.
A) True
B) False - CORRECT ANSWER - A) True
What is the energy conversion that takes place in a turbine in a power plant?
A) Chemical energy to Thermal energy
B) Mechanical energy to electricity
C) Thermal energy to mechanical energy
D) Thermal energy to electricity - CORRECT ANSWER - C) Thermal energy to mechanical
energy
Electric current is a measure of flow of electric charge.
A) True
B) False - CORRECT ANSWER - A) True
Exam Questions and CORRECT
Answers
A Cogeneration power plant generates both electric power and useful thermal energy from the
same fuel source.
A) True
B) False - CORRECT ANSWER - A) True
Central distribution is more efficient than distributed generation for transmitting electricity.
A) True
B) False - CORRECT ANSWER - B) False
Which among the following does not use a generator to produce electricity?
A) Steam power plant
B) Photovoltaic cells
C) Hydroelectric power plant
D) Nuclear power plant - CORRECT ANSWER - B) Photovoltaic cells
In a nuclear power plant, nuclear reactions are used for converting water into steam.
A) True
B) False - CORRECT ANSWER - A) True
Electric power is measured in terms of voltage.
A) True
B) False - CORRECT ANSWER - B) False- unit of electric power is Watts
,Wind turbine converts the kinetic energy of air into mechanical energy through the rotation of
blades.
A) True
B) False - CORRECT ANSWER - A) True
Electrical energy is measured in terms of KWh
A) True
B) False - CORRECT ANSWER - A) True
A step-up transformer is used to decrease the voltage, so that electricity can be transmitted over
long distances.
A) True
B) False - CORRECT ANSWER - B) False
Central distribution uses coal, nuclear, hydropower or gas powered plants to generate and
transmit electricity over long distances.
A) True
B) False - CORRECT ANSWER - A) True
Which power plant uses both gas and steam turbine to produce electricity?
A) Hydroelectric power plant
B) Combined cycle power plant
C) Cogeneration power plant
D) Gas turbine power plant - CORRECT ANSWER - B) Combined cycle power plant
High voltage transmission lines are used to carry electricity over long distances.
A) True
B) False - CORRECT ANSWER - A) True
, Electricity can be generated from fossil fuels.
A) True
B) False - CORRECT ANSWER - A) True- Fossil fuels such as coal or natural gas are used to
generate electricity in power plants. Chemical energy in fossil fuels is converted into electricity
in these plants.
In a power plant, chemical energy is converted to what useful end product?
A) Mechanical energy
B) Electrical energy
C) Thermal energy
D) None of the above - CORRECT ANSWER - B) Electrical energy- Chemical Energy is
converted into thermal energy in the boiler, which is then converted to mechanical energy in the
turbine followed by generation of electricity by the generator.
A generator works on the principle of electromagnetic induction.
A) True
B) False - CORRECT ANSWER - A) True
What is the energy conversion that takes place in a turbine in a power plant?
A) Chemical energy to Thermal energy
B) Mechanical energy to electricity
C) Thermal energy to mechanical energy
D) Thermal energy to electricity - CORRECT ANSWER - C) Thermal energy to mechanical
energy
Electric current is a measure of flow of electric charge.
A) True
B) False - CORRECT ANSWER - A) True
