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Absolute pressure in flow system
- a)is always above local atmospheric pressure
- b)is equal to a vacuum pressure
- c)may be above, below or equal to the local atmospheric pressure.
- d)is also called negative pressure.
Correct answer is option 'C'. Can you explain this answer?
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Absolute pressure in flow systema)is always above local atmospheric pr...
The pressure measured above the absolute zero or complete vacuum is called absolute pressure.
Absolute pressure = Gauge pressure + Local atmosphere pressure.
also Absolute pressure = Local atmosphere pressure - Negative gauge pressure.
Absolute pressure = Gauge pressure + Local atmosphere pressure.
also Absolute pressure = Local atmosphere pressure - Negative gauge pressure.
Most Upvoted Answer
Absolute pressure in flow systema)is always above local atmospheric pr...
Absolute pressure in flow systems can be defined as the sum of the pressure at a point in a fluid and the local atmospheric pressure. It is an important parameter in fluid mechanics and is used to measure the pressure of a fluid at a given point in a flow system.
Below are the details explaining why option 'C' is the correct answer:
Above, Below or Equal to Local Atmospheric Pressure:
• Absolute pressure in a flow system can be above, below or equal to the local atmospheric pressure.
• If the absolute pressure is greater than the atmospheric pressure, the flow system is said to be operating under positive pressure.
• If the absolute pressure is less than the atmospheric pressure, the flow system is said to be operating under negative pressure or vacuum.
• If the absolute pressure is equal to the atmospheric pressure, the flow system is said to be operating under atmospheric pressure.
Always Above Local Atmospheric Pressure:
• Option 'A' states that absolute pressure is always above local atmospheric pressure, which is incorrect.
• There are cases where the absolute pressure can be equal to or below the local atmospheric pressure.
Equal to Vacuum Pressure:
• Option 'B' states that absolute pressure is equal to a vacuum pressure, which is incorrect.
• Vacuum pressure is a type of negative pressure, but not all negative pressure is vacuum pressure.
Also called Negative Pressure:
• Option 'D' states that absolute pressure is also called negative pressure, which is partially correct.
• Negative pressure is a term used to describe a flow system that is operating under pressure less than atmospheric pressure.
• However, absolute pressure is not always negative, it can be positive or zero as well.
Below are the details explaining why option 'C' is the correct answer:
Above, Below or Equal to Local Atmospheric Pressure:
• Absolute pressure in a flow system can be above, below or equal to the local atmospheric pressure.
• If the absolute pressure is greater than the atmospheric pressure, the flow system is said to be operating under positive pressure.
• If the absolute pressure is less than the atmospheric pressure, the flow system is said to be operating under negative pressure or vacuum.
• If the absolute pressure is equal to the atmospheric pressure, the flow system is said to be operating under atmospheric pressure.
Always Above Local Atmospheric Pressure:
• Option 'A' states that absolute pressure is always above local atmospheric pressure, which is incorrect.
• There are cases where the absolute pressure can be equal to or below the local atmospheric pressure.
Equal to Vacuum Pressure:
• Option 'B' states that absolute pressure is equal to a vacuum pressure, which is incorrect.
• Vacuum pressure is a type of negative pressure, but not all negative pressure is vacuum pressure.
Also called Negative Pressure:
• Option 'D' states that absolute pressure is also called negative pressure, which is partially correct.
• Negative pressure is a term used to describe a flow system that is operating under pressure less than atmospheric pressure.
• However, absolute pressure is not always negative, it can be positive or zero as well.
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Absolute pressure in flow systema)is always above local atmospheric pressureb)is equal to a vacuum pressurec)may be above, below or equal to the local atmospheric pressure.d)is also called negative pressure.Correct answer is option 'C'. Can you explain this answer?
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