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Consider the following statements pertaining to heat transfer processes:
1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.
2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.
3. Heat transfer in liquids and gases is essentially due to radiation.
4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.
Select the correct answer:
1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.
2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.
3. Heat transfer in liquids and gases is essentially due to radiation.
4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.
Select the correct answer:
- a)1, 2 and 4
- b)2, 3 and 4
- c)1, 3 and 4
- d)All of the above
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Consider the following statements pertaining to heat transfer processe...
Let's analyze each statement in relation to heat transfer processes:
Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.
- This statement is correct. Convection involves the movement of fluid (liquid or gas) particles, which carry heat from one place to another.
The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.
- This statement is correct. Radiation involves the transfer of energy through electromagnetic waves, and it does not require a material medium. The medium itself is not heated or otherwise affected by the radiation passing through it.
Heat transfer in liquids and gases is essentially due to radiation.
- This statement is incorrect. While radiation can occur in liquids and gases, the primary modes of heat transfer in these states are convection and conduction. Radiation is more significant in the transfer of heat through a vacuum or transparent media.
In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.
- This statement is correct. Conduction in gases and liquids happens due to molecular collisions and diffusion, transferring kinetic energy from hotter regions to cooler ones.
Based on this analysis, the correct answer is:
1, 2 and 4
Most Upvoted Answer
Consider the following statements pertaining to heat transfer processe...
Answer:
Heat transfer is the process of energy transfer from one body or system to another due to a temperature difference. There are three main modes of heat transfer: conduction, convection, and radiation. Let's analyze each statement to determine the correct answer.
1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.
This statement is correct. Convection is the mode of heat transfer in which heat is transferred through the actual motion of the medium, such as a liquid or a gas. When a fluid is heated, its particles gain energy and become less dense, causing them to rise. This hot fluid then displaces the cooler fluid, creating a continuous circulation of heat. Therefore, convection involves the transfer of heat through the movement of heated particles.
2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.
This statement is incorrect. Radiation is the mode of heat transfer that does not require a medium. It can occur through empty space as well. When an object is at a higher temperature than its surroundings, it emits electromagnetic waves in the form of heat radiation. These waves carry energy and can be absorbed by other objects, causing them to heat up. Therefore, the material medium between the heat source and receiver can be affected during the process of heat transmission by radiation.
3. Heat transfer in liquids and gases is essentially due to radiation.
This statement is incorrect. Heat transfer in liquids and gases is primarily due to convection, not radiation. As mentioned earlier, convection involves the actual motion of the medium. When a liquid or a gas is heated, its particles gain energy and move faster, leading to the transfer of heat. Radiation can also play a role in heat transfer in liquids and gases, but it is not the primary mode.
4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.
This statement is correct. Conduction is the mode of heat transfer that occurs through direct contact between objects or particles. In gases and liquids, heat conduction is primarily due to the collisions and diffusion of the molecules. As the heated molecules collide with neighboring molecules, they transfer their energy, leading to the overall transfer of heat.
Therefore, the correct answer is option A: 1, 2, and 4. Heat transfer involves different modes, and each statement describes a specific aspect of these modes.
Heat transfer is the process of energy transfer from one body or system to another due to a temperature difference. There are three main modes of heat transfer: conduction, convection, and radiation. Let's analyze each statement to determine the correct answer.
1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.
This statement is correct. Convection is the mode of heat transfer in which heat is transferred through the actual motion of the medium, such as a liquid or a gas. When a fluid is heated, its particles gain energy and become less dense, causing them to rise. This hot fluid then displaces the cooler fluid, creating a continuous circulation of heat. Therefore, convection involves the transfer of heat through the movement of heated particles.
2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.
This statement is incorrect. Radiation is the mode of heat transfer that does not require a medium. It can occur through empty space as well. When an object is at a higher temperature than its surroundings, it emits electromagnetic waves in the form of heat radiation. These waves carry energy and can be absorbed by other objects, causing them to heat up. Therefore, the material medium between the heat source and receiver can be affected during the process of heat transmission by radiation.
3. Heat transfer in liquids and gases is essentially due to radiation.
This statement is incorrect. Heat transfer in liquids and gases is primarily due to convection, not radiation. As mentioned earlier, convection involves the actual motion of the medium. When a liquid or a gas is heated, its particles gain energy and move faster, leading to the transfer of heat. Radiation can also play a role in heat transfer in liquids and gases, but it is not the primary mode.
4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.
This statement is correct. Conduction is the mode of heat transfer that occurs through direct contact between objects or particles. In gases and liquids, heat conduction is primarily due to the collisions and diffusion of the molecules. As the heated molecules collide with neighboring molecules, they transfer their energy, leading to the overall transfer of heat.
Therefore, the correct answer is option A: 1, 2, and 4. Heat transfer involves different modes, and each statement describes a specific aspect of these modes.
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Consider the following statements pertaining to heat transfer processes:1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.3. Heat transfer in liquids and gases is essentially due to radiation.4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.Select the correct answer:a)1, 2 and 4b)2, 3 and 4c)1, 3 and 4d)All of the aboveCorrect answer is option 'A'. Can you explain this answer?
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Consider the following statements pertaining to heat transfer processes:1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.3. Heat transfer in liquids and gases is essentially due to radiation.4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.Select the correct answer:a)1, 2 and 4b)2, 3 and 4c)1, 3 and 4d)All of the aboveCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements pertaining to heat transfer processes:1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.3. Heat transfer in liquids and gases is essentially due to radiation.4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.Select the correct answer:a)1, 2 and 4b)2, 3 and 4c)1, 3 and 4d)All of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements pertaining to heat transfer processes:1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.3. Heat transfer in liquids and gases is essentially due to radiation.4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.Select the correct answer:a)1, 2 and 4b)2, 3 and 4c)1, 3 and 4d)All of the aboveCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Consider the following statements pertaining to heat transfer processes:1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.3. Heat transfer in liquids and gases is essentially due to radiation.4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.Select the correct answer:a)1, 2 and 4b)2, 3 and 4c)1, 3 and 4d)All of the aboveCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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ample number of questions to practice Consider the following statements pertaining to heat transfer processes:1. Heat transfer is directly linked with the transport of medium itself, i.e., there is actual motion of heated particles during convection.2. The material medium between the heat source and receiver is not affected during the process of heat transmission by radiation.3. Heat transfer in liquids and gases is essentially due to radiation.4. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.Select the correct answer:a)1, 2 and 4b)2, 3 and 4c)1, 3 and 4d)All of the aboveCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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