19 Questions
What is the main difference between the production of electrical energy and the manufacture of a commodity?
Electrical energy must be produced and transmitted instantaneously, while the manufacture of a commodity does not have this requirement.
Which natural sources are mentioned in the text as providers of energy for the generation of electrical energy?
Pressure head of water, chemical energy of fuels, and nuclear energy of radioactive substances
What is the essential arrangement used to convert various forms of natural energy into electrical energy?
An alternator coupled to a prime mover
How does the conversion of the chemical energy of a fuel (e.g., coal) into electrical energy occur?
By using the chemical energy to produce steam at high temperature and pressure, which is then fed to a prime mover like a steam engine or steam turbine.
Which method for generating electrical energy is popular due to its low production and maintenance costs?
Water energy
What is the primary drawback of using solar energy to generate electrical power?
Limited application due to large area requirement
Why has the utilization of wind energy not been on a large scale?
Unreliable power generation
What makes the utilization of solar energy uneconomical as a method for generating electrical power?
High initial setup costs
Why is water energy considered as a potential source for generating electrical energy?
Potential energy due to stored water
What is the key difference between the conversion of electrical energy and the production of a commodity?
The conversion of electrical energy requires instantaneous production and transmission, while commodity production does not.
What is the essential arrangement used to convert various forms of natural energy into electrical energy?
An alternator coupled to a prime mover driven by energy obtained from natural sources.
Which natural sources can be used to drive the prime mover for producing electrical energy?
Burning of fuel, pressure of water, force of wind
Why must electrical energy be produced and transmitted instantly at the point of use?
To meet technical and economical considerations unique to the electrical power industry.
What is the primary drawback of the wind energy method mentioned in the text?
Variable output
Why is the utilization of solar energy uneconomical as a method for generating electrical power?
It requires a large area for generation
What is the primary advantage of using water energy to generate electrical energy?
Low maintenance costs
What makes the sources of energy due to Sun and wind not utilized on a large scale, as mentioned in the text?
Large area requirement
How can the energy due to Sun be used to produce electrical energy, according to the text?
By focusing heat energy over a small area with reflectors
Why is the method of generating electrical energy using fuels mentioned in the text?
Low maintenance costs
Test your knowledge about the conversion of different forms of energy into electrical energy, and the unique characteristics of electrical energy as a manufactured commodity. Explore the process of converting raw materials available in nature into electrical energy.
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