Generation of Electrical Energy Quiz

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Questions and Answers

What is the main difference between the production of electrical energy and the manufacture of a commodity?

Electrical energy is produced using nuclear energy, while the production of a commodity does not involve nuclear energy.
Electrical energy must be produced and transmitted instantaneously, while the manufacture of a commodity does not have this requirement. (correct)
The production of a commodity requires raw materials to be converted into the desired form over a longer period, while electrical energy is produced instantaneously.
The production of a commodity is based on natural energy sources, whereas electrical energy is not dependent on natural sources.

Which natural sources are mentioned in the text as providers of energy for the generation of electrical energy?

Wind force, electrical pressure, and chemical reactions
Biomass combustion, wave motion, and hydroelectric power
Pressure head of water, chemical energy of fuels, and nuclear energy of radioactive substances (correct)
Solar radiation, geothermal heat, and tidal energy

What is the essential arrangement used to convert various forms of natural energy into electrical energy?

An alternator coupled to a prime mover (correct)
A battery storage system linked to renewable energy sources
A series of transformers connected to a power grid
A generator powered by wind or solar energy

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. (C) Signup and view all the answers

Which method for generating electrical energy is popular due to its low production and maintenance costs?

Water energy (D) Signup and view all the answers

What is the primary drawback of using solar energy to generate electrical power?

Limited application due to large area requirement (D) Signup and view all the answers

Why has the utilization of wind energy not been on a large scale?

Unreliable power generation (B) Signup and view all the answers

What makes the utilization of solar energy uneconomical as a method for generating electrical power?

High initial setup costs (A) Signup and view all the answers

Why is water energy considered as a potential source for generating electrical energy?

Potential energy due to stored water (C) Signup and view all the answers

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. (A) Signup and view all the answers

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. (A) Signup and view all the answers

Which natural sources can be used to drive the prime mover for producing electrical energy?

Burning of fuel, pressure of water, force of wind (B) Signup and view all the answers

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. (D) Signup and view all the answers

What is the primary drawback of the wind energy method mentioned in the text?

Variable output (C) Signup and view all the answers

Why is the utilization of solar energy uneconomical as a method for generating electrical power?

It requires a large area for generation (A) Signup and view all the answers

What is the primary advantage of using water energy to generate electrical energy?

Low maintenance costs (D) Signup and view all the answers

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 (B) Signup and view all the answers

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 (A) Signup and view all the answers

Why is the method of generating electrical energy using fuels mentioned in the text?

Low maintenance costs (A) Signup and view all the answers

Flashcards

Difference between Electrical Energy Production and Commodity Production

Electrical energy needs to be generated and delivered immediately, whereas commodities can be manufactured beforehand.

Natural Energy Sources for Electricity

Water's pressure, fuel's chemical energy, and radioactive materials' nuclear energy.

Electricity Generation Arrangement

A device (like a turbine) driven by a natural energy source, connected to a generator that converts mechanical energy into electrical energy.

Fuel-Based Electricity Generation

Fuel's chemical energy converts to heat, generating high-pressure steam that drives a turbine, producing electricity.