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The following statements are concerned with psychrometric chart:
1. Constant relative humidity lines are uphill straight lines to the right
2. Constant wet bulb temperature lines are downhill straight lines to the right
3. Constant specific volume lines are downhill straight lines to the right
4. Constant enthalpy fines are coincident with constant wet bulb temperature lines
Q. Which of the statements are correct?
1. Constant relative humidity lines are uphill straight lines to the right
2. Constant wet bulb temperature lines are downhill straight lines to the right
3. Constant specific volume lines are downhill straight lines to the right
4. Constant enthalpy fines are coincident with constant wet bulb temperature lines
Q. Which of the statements are correct?
- a)2 and 3
- b)1 and 2
- c)1 and 3
- d)2 and 4
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
The following statements are concerned with psychrometric chart:1. Con...
Psychrometric Chart
The psychrometric chart is a graphical representation of the thermodynamic properties of air-water vapor mixtures. It is a valuable tool used by engineers and scientists to analyze and design systems involving air conditioning, heating, and ventilation. The chart provides information about various properties of moist air, such as temperature, humidity, specific volume, and enthalpy.
Statements and Analysis
Let's analyze each statement and determine whether it is correct or not.
1. Constant relative humidity lines are uphill straight lines to the right.
This statement is incorrect. Constant relative humidity lines on the psychrometric chart are not straight lines. They are curved lines that slope upwards to the right. This is because as temperature increases, the absolute humidity (amount of moisture in the air) required to maintain a constant relative humidity decreases. Therefore, the constant relative humidity lines curve upwards towards the right.
2. Constant wet bulb temperature lines are downhill straight lines to the right.
This statement is correct. Constant wet bulb temperature lines on the psychrometric chart are straight lines that slope downwards to the right. The wet bulb temperature represents the lowest temperature that can be achieved by evaporative cooling. As the moisture content in the air increases, the wet bulb temperature decreases. Therefore, the constant wet bulb temperature lines slope downwards towards the right.
3. Constant specific volume lines are downhill straight lines to the right.
This statement is incorrect. Constant specific volume lines on the psychrometric chart are not straight lines. They are curved lines that slope downwards to the right. The specific volume of air-water vapor mixture decreases as the humidity ratio (mass of water vapor per unit mass of dry air) increases. Therefore, the constant specific volume lines curve downwards towards the right.
4. Constant enthalpy fines are coincident with constant wet bulb temperature lines.
This statement is correct. Constant enthalpy lines on the psychrometric chart coincide with constant wet bulb temperature lines. Enthalpy is a measure of the total heat content of the air-water vapor mixture. The enthalpy value remains constant along a given line. Since the wet bulb temperature is directly related to the enthalpy of the air, the constant enthalpy lines align with the constant wet bulb temperature lines.
Conclusion
Based on the analysis, the correct statements are:
2. Constant wet bulb temperature lines are downhill straight lines to the right.
4. Constant enthalpy fines are coincident with constant wet bulb temperature lines.
Therefore, the correct answer is option 'D' - 2 and 4.
The psychrometric chart is a graphical representation of the thermodynamic properties of air-water vapor mixtures. It is a valuable tool used by engineers and scientists to analyze and design systems involving air conditioning, heating, and ventilation. The chart provides information about various properties of moist air, such as temperature, humidity, specific volume, and enthalpy.
Statements and Analysis
Let's analyze each statement and determine whether it is correct or not.
1. Constant relative humidity lines are uphill straight lines to the right.
This statement is incorrect. Constant relative humidity lines on the psychrometric chart are not straight lines. They are curved lines that slope upwards to the right. This is because as temperature increases, the absolute humidity (amount of moisture in the air) required to maintain a constant relative humidity decreases. Therefore, the constant relative humidity lines curve upwards towards the right.
2. Constant wet bulb temperature lines are downhill straight lines to the right.
This statement is correct. Constant wet bulb temperature lines on the psychrometric chart are straight lines that slope downwards to the right. The wet bulb temperature represents the lowest temperature that can be achieved by evaporative cooling. As the moisture content in the air increases, the wet bulb temperature decreases. Therefore, the constant wet bulb temperature lines slope downwards towards the right.
3. Constant specific volume lines are downhill straight lines to the right.
This statement is incorrect. Constant specific volume lines on the psychrometric chart are not straight lines. They are curved lines that slope downwards to the right. The specific volume of air-water vapor mixture decreases as the humidity ratio (mass of water vapor per unit mass of dry air) increases. Therefore, the constant specific volume lines curve downwards towards the right.
4. Constant enthalpy fines are coincident with constant wet bulb temperature lines.
This statement is correct. Constant enthalpy lines on the psychrometric chart coincide with constant wet bulb temperature lines. Enthalpy is a measure of the total heat content of the air-water vapor mixture. The enthalpy value remains constant along a given line. Since the wet bulb temperature is directly related to the enthalpy of the air, the constant enthalpy lines align with the constant wet bulb temperature lines.
Conclusion
Based on the analysis, the correct statements are:
2. Constant wet bulb temperature lines are downhill straight lines to the right.
4. Constant enthalpy fines are coincident with constant wet bulb temperature lines.
Therefore, the correct answer is option 'D' - 2 and 4.
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Community Answer
The following statements are concerned with psychrometric chart:1. Con...
Explanation:
1. Incorrect - Constant relative humidity lines are curved lines that run from the lower left to the upper right on a psychrometric chart. They are not straight lines.
2. Correct - Constant wet bulb temperature lines are downhill straight lines to the right. They represent the temperature at which air becomes saturated with moisture (100% relative humidity) when cooled by evaporating water.
3. Incorrect - Constant specific volume lines are upward sloping straight lines to the right. They represent the volume of air per unit mass at a given temperature and pressure.
4. Correct - Constant enthalpy lines are coincident with constant wet bulb temperature lines. Enthalpy is a measure of the total energy of a system, and it remains constant during an adiabatic (no heat transfer) process, such as evaporative cooling, which is represented by the wet bulb temperature.
1. Incorrect - Constant relative humidity lines are curved lines that run from the lower left to the upper right on a psychrometric chart. They are not straight lines.
2. Correct - Constant wet bulb temperature lines are downhill straight lines to the right. They represent the temperature at which air becomes saturated with moisture (100% relative humidity) when cooled by evaporating water.
3. Incorrect - Constant specific volume lines are upward sloping straight lines to the right. They represent the volume of air per unit mass at a given temperature and pressure.
4. Correct - Constant enthalpy lines are coincident with constant wet bulb temperature lines. Enthalpy is a measure of the total energy of a system, and it remains constant during an adiabatic (no heat transfer) process, such as evaporative cooling, which is represented by the wet bulb temperature.
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The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. Can you explain this answer?
Question Description
The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. 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 The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. 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 The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. Can you explain this answer?.
The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. 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 The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. 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 The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. Can you explain this answer?.
Solutions for The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. 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 The following statements are concerned with psychrometric chart:1. Constant relative humidity lines are uphill straight lines to the right2. Constant wet bulb temperature lines are downhill straight lines to the right3. Constant specific volume lines are downhill straight lines to the right4. Constant enthalpy fines are coincident with constant wet bulb temperature linesQ.Which of the statements are correct?a)2 and 3b)1 and 2c)1 and 3d)2 and 4Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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