Mechanical Engineering Exam > Mechanical Engineering Questions > Select the correct statement:a)local atmosphe...
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Select the correct statement:
- a)local atmospheric pressure depends only upon the height of locality above mean sea level.
- b)local atmospheric pressure is always below the standard atmospheric pressure.
- c)standard atmospheric pressure is the mean local atmospheric pressure at sea level.
- d)a barometer reads the difference between local and standard atmospheric pressure
Correct answer is option 'C'. Can you explain this answer?
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Select the correct statement:a)local atmospheric pressure depends only...
Explanation:
Standard Atmospheric Pressure:
Standard atmospheric pressure is defined as the mean local atmospheric pressure at sea level. It is also known as the normal atmospheric pressure or the barometric pressure at sea level. The value of standard atmospheric pressure is 101.325 kPa or 1.01325 bar or 760 mmHg.
Local Atmospheric Pressure:
Local atmospheric pressure is the pressure exerted by the atmosphere at any particular locality on the earth's surface. It is measured in terms of barometric pressure using a barometer. The local atmospheric pressure can vary from one locality to another due to various factors such as altitude, weather conditions, temperature, humidity, etc.
Relation between Local and Standard Atmospheric Pressure:
The local atmospheric pressure is directly proportional to the altitude of the locality above mean sea level. As the altitude increases, the pressure decreases. However, the relation is not linear, as the pressure also depends on other factors such as temperature, humidity, etc. Therefore, it is not correct to say that the local atmospheric pressure depends only upon the height of locality above mean sea level.
The local atmospheric pressure can be either below or above the standard atmospheric pressure depending on the locality. For example, if the locality is at a high altitude, the local atmospheric pressure will be below the standard atmospheric pressure. On the other hand, if the locality is at a low altitude, the local atmospheric pressure will be above the standard atmospheric pressure.
Conclusion:
Hence, the correct statement is option 'C' that the standard atmospheric pressure is the mean local atmospheric pressure at sea level. The local atmospheric pressure can vary from one locality to another depending on various factors such as altitude, weather conditions, temperature, humidity, etc.
Standard Atmospheric Pressure:
Standard atmospheric pressure is defined as the mean local atmospheric pressure at sea level. It is also known as the normal atmospheric pressure or the barometric pressure at sea level. The value of standard atmospheric pressure is 101.325 kPa or 1.01325 bar or 760 mmHg.
Local Atmospheric Pressure:
Local atmospheric pressure is the pressure exerted by the atmosphere at any particular locality on the earth's surface. It is measured in terms of barometric pressure using a barometer. The local atmospheric pressure can vary from one locality to another due to various factors such as altitude, weather conditions, temperature, humidity, etc.
Relation between Local and Standard Atmospheric Pressure:
The local atmospheric pressure is directly proportional to the altitude of the locality above mean sea level. As the altitude increases, the pressure decreases. However, the relation is not linear, as the pressure also depends on other factors such as temperature, humidity, etc. Therefore, it is not correct to say that the local atmospheric pressure depends only upon the height of locality above mean sea level.
The local atmospheric pressure can be either below or above the standard atmospheric pressure depending on the locality. For example, if the locality is at a high altitude, the local atmospheric pressure will be below the standard atmospheric pressure. On the other hand, if the locality is at a low altitude, the local atmospheric pressure will be above the standard atmospheric pressure.
Conclusion:
Hence, the correct statement is option 'C' that the standard atmospheric pressure is the mean local atmospheric pressure at sea level. The local atmospheric pressure can vary from one locality to another depending on various factors such as altitude, weather conditions, temperature, humidity, etc.
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Select the correct statement:a)local atmospheric pressure depends only upon the height of locality above mean sea level.b)local atmospheric pressure is always below the standard atmospheric pressure.c)standard atmospheric pressure is the mean local atmospheric pressure at sea level.d)a barometer reads the difference between local and standard atmospheric pressureCorrect answer is option 'C'. Can you explain this answer?
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Select the correct statement:a)local atmospheric pressure depends only upon the height of locality above mean sea level.b)local atmospheric pressure is always below the standard atmospheric pressure.c)standard atmospheric pressure is the mean local atmospheric pressure at sea level.d)a barometer reads the difference between local and standard atmospheric pressureCorrect answer is option 'C'. 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 Select the correct statement:a)local atmospheric pressure depends only upon the height of locality above mean sea level.b)local atmospheric pressure is always below the standard atmospheric pressure.c)standard atmospheric pressure is the mean local atmospheric pressure at sea level.d)a barometer reads the difference between local and standard atmospheric pressureCorrect answer is option 'C'. 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 Select the correct statement:a)local atmospheric pressure depends only upon the height of locality above mean sea level.b)local atmospheric pressure is always below the standard atmospheric pressure.c)standard atmospheric pressure is the mean local atmospheric pressure at sea level.d)a barometer reads the difference between local and standard atmospheric pressureCorrect answer is option 'C'. Can you explain this answer?.
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ample number of questions to practice Select the correct statement:a)local atmospheric pressure depends only upon the height of locality above mean sea level.b)local atmospheric pressure is always below the standard atmospheric pressure.c)standard atmospheric pressure is the mean local atmospheric pressure at sea level.d)a barometer reads the difference between local and standard atmospheric pressureCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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