A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062.

Fluid Mechanics
A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062.

10 m

11 m

12 m

20 m

10 m

11 m

12 m

20 m

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Fluid Mechanics
A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is

> Δp

< Δp

Δp²

Δp

> Δp

< Δp

Δp²

Δp

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Fluid Mechanics
Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.

Head of the liquid pumped

NPSH required

All of these

BHP required by the pump

Head of the liquid pumped

NPSH required

All of these

BHP required by the pump

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Fluid Mechanics
Two dimensional stream function

Is constant along an equipotential surface

None of these

Relates velocity and pressure

Is constant along a stream line

Is constant along an equipotential surface

None of these

Relates velocity and pressure

Is constant along a stream line

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Fluid Mechanics
Steady flow occurs, when the

Rate of the velocity change is constant

Conditions change steadily with time

Conditions do not change with time at any point

Conditions are the same at the adjacent points at any instant

Rate of the velocity change is constant

Conditions change steadily with time

Conditions do not change with time at any point

Conditions are the same at the adjacent points at any instant

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Fluid Mechanics
Water is flowing at 1 m/sec through a pipe (of 10 cm I.D) with a right angle bend. The force in Newtons exerted on the bend by water is

5√2π

5π/√2

5π/2

10√2π

5√2π

5π/√2

5π/2

10√2π

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Fluid Mechanics

Fluid Mechanics A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is

Fluid Mechanics Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.

Fluid Mechanics Two dimensional stream function

Fluid Mechanics Steady flow occurs, when the

Fluid Mechanics Water is flowing at 1 m/sec through a pipe (of 10 cm I.D) with a right angle bend. The force in Newtons exerted on the bend by water is

Fluid Mechanics
A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is

Fluid Mechanics
Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.

Fluid Mechanics
Two dimensional stream function

Fluid Mechanics
Steady flow occurs, when the

Fluid Mechanics
Water is flowing at 1 m/sec through a pipe (of 10 cm I.D) with a right angle bend. The force in Newtons exerted on the bend by water is