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The manometer head (Hm) of a centrifugal pump is given by
- a)Pressure head at the outlet of pump – pressure head at the inlet
- b)Total head at the inlet – total head at outlet
- c)Total head at outlet – total head at the inlet
- d)Total head at inlet + total head at outlet
Correct answer is option 'C'. Can you explain this answer?
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The manometer head (Hm) of a centrifugal pump is given bya)Pressure h...
Different heads in centrifugal pump:
Suction Head (hs): It is the vertical height of the centre line of the centrifugal pump above the water surface in the tank or pump from which water is to be lifted.
Delivery head (hd): The vertical distance between the centre line of the pump and the water surface in the tank to which water is delivered is known as the delivery head.
Static Head (H): The sum of the suction head and the delivery head is known as the static head. H = hs + hd
Manometric Head (Hm): The manometric head is defined as the head against which a centrifugal pump has to work. It is given by the following expressions:
Hm = Head imparted by the impeller to the water – Loss of head in the pump
Hm = Total head at the outlet of the pump – Total head at the inlet of the pump
Hm = Suction Head (hs) + Delivery Head (hd) + Friction head loss in the suction pipe (hfs) + Friction head loss in the Delivery pipe (hfd) + Velocity head of water in the delivery pipe (V2/2g)
Most Upvoted Answer
The manometer head (Hm) of a centrifugal pump is given bya)Pressure h...
Explanation:
The manometer head (Hm) of a centrifugal pump is defined as the difference between the total head at the outlet and the total head at the inlet. This is because the manometer head is a measure of the pressure difference between the inlet and the outlet of the pump.
Total Head:
The total head of a centrifugal pump is the sum of the pressure head and the velocity head at any point in the pump. The pressure head is the static pressure of the fluid, while the velocity head is the kinetic energy of the fluid. The total head is a measure of the energy that the pump imparts to the fluid.
Manometer Head:
The manometer head is a measure of the pressure difference between the inlet and the outlet of the pump. It is given by the formula:
Hm = H2 - H1
Where H2 is the total head at the outlet and H1 is the total head at the inlet.
Option C:
Hence, option C is the correct answer as it states that the manometer head is the difference between the total head at the outlet and the total head at the inlet.
The manometer head (Hm) of a centrifugal pump is defined as the difference between the total head at the outlet and the total head at the inlet. This is because the manometer head is a measure of the pressure difference between the inlet and the outlet of the pump.
Total Head:
The total head of a centrifugal pump is the sum of the pressure head and the velocity head at any point in the pump. The pressure head is the static pressure of the fluid, while the velocity head is the kinetic energy of the fluid. The total head is a measure of the energy that the pump imparts to the fluid.
Manometer Head:
The manometer head is a measure of the pressure difference between the inlet and the outlet of the pump. It is given by the formula:
Hm = H2 - H1
Where H2 is the total head at the outlet and H1 is the total head at the inlet.
Option C:
Hence, option C is the correct answer as it states that the manometer head is the difference between the total head at the outlet and the total head at the inlet.
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The manometer head (Hm) of a centrifugal pump is given bya)Pressure head at the outlet of pump – pressure head at the inletb)Total head at the inlet – total head at outletc)Total head at outlet – total head at the inletd)Total head at inlet + total head at outletCorrect answer is option 'C'. Can you explain this answer?
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