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Fill in the blanks with the suitable option. _______ have largely replaced the _____
- a)Diesel and Electric engines, Steam engines
- b)Wheel and Electric engines, Steam engines
- c)Steam and Electric engines, Diesel engines
- d)Steam and Diesel engines, Electric engines
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Fill in the blanks with the suitable option. _______ have largely repl...
In the 1950s, diesels began taking over steam power, as they were easier to maintain, and more efficient. Diesel locomotives required less maintenance and fewer crew members to run.
Most Upvoted Answer
Fill in the blanks with the suitable option. _______ have largely repl...
Diesels replaced steam locomotives because they are more efficient because they cost less money to run. The major limitations or disadvantages of a steam engine or external combustion engine are given below :
1. A steam engine is huge and heavy. (That is an external combustion engine is huge and heavy). Due to its big boiler and furnace a steam engine is huge, heavy and clumsy. Since the boiler of a steam engine is very heavy, therefore, a steam engine cannot be used for running small vehicles like cars and buses.
2. A steam engine does not start at once. (That is, An external combustion engine does not start at once). Before a steam engine can start, we have to build a coal fire to get steam. This process takes a long time and hence a steam engine cannot be started at a moment’s notice.
3. A steam engine is unsafe to use. (That is, An external combustion engine is unsafe to use). A steam engine is not very safe to use because its boiler can burst due to excessive steam pressure. In order to get the maximum work from the heat energy, the steam has to be maintained at high temperature and a very high pressure in the boiler. If, by chance, the steam pressure increases too much, then the boiler can burst leading to loss of life and property. Thus, the most dangerous part of a steam engine (or external combustion engine) is its boiler where steam is produced. Actually, in the early days of the steam engine, good materials were not available for the construction of boilers which could withstand high steam pressure. Even the construction techniques were not perfect. So, a lot of accidents were caused in the early days of the steam engine due to the bursting of boilers, because of poor materials used in making boilers and faulty construction of boilers.
4. A steam engine has low efficiency. (That is, An external combustion engine has low efficiency). The thermal efficiency of a steam engine is about 20 per cent which means that a steam engine can convert only about 20 per cent of the heat energy into work. One of the reasons for the low efficiency of a steam engine is that the steam used in it is not at a very high temperature. Another reason for the low efficiency of a steam engine is the loss of heat because of the large exposed surface area of the steam engine, particularly the boiler and the cylinder.Because of these limitations (or disadvantages) of the external combustion engine, another engine called internal combustion engine was invented.Diesel is an example of internal combustion engine
1. A steam engine is huge and heavy. (That is an external combustion engine is huge and heavy). Due to its big boiler and furnace a steam engine is huge, heavy and clumsy. Since the boiler of a steam engine is very heavy, therefore, a steam engine cannot be used for running small vehicles like cars and buses.
2. A steam engine does not start at once. (That is, An external combustion engine does not start at once). Before a steam engine can start, we have to build a coal fire to get steam. This process takes a long time and hence a steam engine cannot be started at a moment’s notice.
3. A steam engine is unsafe to use. (That is, An external combustion engine is unsafe to use). A steam engine is not very safe to use because its boiler can burst due to excessive steam pressure. In order to get the maximum work from the heat energy, the steam has to be maintained at high temperature and a very high pressure in the boiler. If, by chance, the steam pressure increases too much, then the boiler can burst leading to loss of life and property. Thus, the most dangerous part of a steam engine (or external combustion engine) is its boiler where steam is produced. Actually, in the early days of the steam engine, good materials were not available for the construction of boilers which could withstand high steam pressure. Even the construction techniques were not perfect. So, a lot of accidents were caused in the early days of the steam engine due to the bursting of boilers, because of poor materials used in making boilers and faulty construction of boilers.
4. A steam engine has low efficiency. (That is, An external combustion engine has low efficiency). The thermal efficiency of a steam engine is about 20 per cent which means that a steam engine can convert only about 20 per cent of the heat energy into work. One of the reasons for the low efficiency of a steam engine is that the steam used in it is not at a very high temperature. Another reason for the low efficiency of a steam engine is the loss of heat because of the large exposed surface area of the steam engine, particularly the boiler and the cylinder.Because of these limitations (or disadvantages) of the external combustion engine, another engine called internal combustion engine was invented.Diesel is an example of internal combustion engine
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Fill in the blanks with the suitable option. _______ have largely repl...
The correct answer is option 'A': Diesel and Electric engines have largely replaced Steam engines.
Explanation:
1. Introduction:
- Diesel and Electric engines have become the primary sources of power in various industries, including transportation and manufacturing.
- These engines have gradually replaced the older technology of steam engines due to their numerous advantages.
2. Advantages of Diesel Engines:
- Diesel engines are more efficient than steam engines as they convert a higher percentage of fuel energy into useful work.
- They have a higher power-to-weight ratio, making them suitable for various applications, including automobiles, locomotives, and ships.
- Diesel engines are more compact, lightweight, and require less maintenance compared to steam engines.
- They also have better control over speed and power output.
3. Advantages of Electric Engines:
- Electric engines, powered by electricity, have gained significant popularity due to their environmental benefits and efficiency.
- They produce zero emissions during operation, making them an eco-friendly alternative to steam engines that burn fossil fuels.
- Electric engines provide instant torque, resulting in quick acceleration and better performance in various vehicles.
- They have a higher energy conversion efficiency compared to steam engines, reducing overall energy consumption.
- Electric engines can be easily integrated with renewable energy sources, such as solar and wind power, further reducing dependence on fossil fuels.
4. Disadvantages of Steam Engines:
- Steam engines were widely used in the past but have become outdated due to several limitations.
- They require a constant supply of water and fuel, making them less efficient and more expensive to operate.
- Steam engines are bulkier, heavier, and require more space compared to diesel and electric engines.
- They have a slower response time and take longer to start and reach optimal operating conditions.
5. Conclusion:
- Due to the numerous advantages offered by diesel and electric engines, they have largely replaced steam engines in modern industries.
- Diesel engines provide higher efficiency, power, and reliability, while electric engines offer environmental benefits and better performance.
- The transition from steam engines to diesel and electric engines has resulted in improved productivity, reduced emissions, and enhanced overall efficiency in various sectors.
Explanation:
1. Introduction:
- Diesel and Electric engines have become the primary sources of power in various industries, including transportation and manufacturing.
- These engines have gradually replaced the older technology of steam engines due to their numerous advantages.
2. Advantages of Diesel Engines:
- Diesel engines are more efficient than steam engines as they convert a higher percentage of fuel energy into useful work.
- They have a higher power-to-weight ratio, making them suitable for various applications, including automobiles, locomotives, and ships.
- Diesel engines are more compact, lightweight, and require less maintenance compared to steam engines.
- They also have better control over speed and power output.
3. Advantages of Electric Engines:
- Electric engines, powered by electricity, have gained significant popularity due to their environmental benefits and efficiency.
- They produce zero emissions during operation, making them an eco-friendly alternative to steam engines that burn fossil fuels.
- Electric engines provide instant torque, resulting in quick acceleration and better performance in various vehicles.
- They have a higher energy conversion efficiency compared to steam engines, reducing overall energy consumption.
- Electric engines can be easily integrated with renewable energy sources, such as solar and wind power, further reducing dependence on fossil fuels.
4. Disadvantages of Steam Engines:
- Steam engines were widely used in the past but have become outdated due to several limitations.
- They require a constant supply of water and fuel, making them less efficient and more expensive to operate.
- Steam engines are bulkier, heavier, and require more space compared to diesel and electric engines.
- They have a slower response time and take longer to start and reach optimal operating conditions.
5. Conclusion:
- Due to the numerous advantages offered by diesel and electric engines, they have largely replaced steam engines in modern industries.
- Diesel engines provide higher efficiency, power, and reliability, while electric engines offer environmental benefits and better performance.
- The transition from steam engines to diesel and electric engines has resulted in improved productivity, reduced emissions, and enhanced overall efficiency in various sectors.
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Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer?.
Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Fill in the blanks with the suitable option. _______ have largely replaced the _____a)Diesel and Electric engines, Steam enginesb)Wheel and Electric engines, Steam enginesc)Steam and Electric engines, Diesel enginesd)Steam and Diesel engines, Electric enginesCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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