Theoretical power required (in watts) to drive a reciprocating pump is (where w = Specific weight of liquid to be pumped in N/m3, Q = Discharge of the pump in m3/s, Hs = Suction head in meters, and Hd = Delivery head in meters)

Hydraulics and Fluid Mechanics in ME
Theoretical power required (in watts) to drive a reciprocating pump is (where w = Specific weight of liquid to be pumped in N/m3, Q = Discharge of the pump in m3/s, Hs = Suction head in meters, and Hd = Delivery head in meters)

wQ (Hs - Hd)

wQHs

wQHd

wQ (Hs + Hd)

wQ (Hs - Hd)

wQHs

wQHd

wQ (Hs + Hd)

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Hydraulics and Fluid Mechanics in ME
A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called

None of these

D-Alembert’s principle

Pascal’s law

Archimedes’s principle

None of these

D-Alembert’s principle

Pascal’s law

Archimedes’s principle

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Hydraulics and Fluid Mechanics in ME
A Piezometer tube is used only for measuring

Low pressure

Vacuum pressure

Moderate pressure

High pressure

Low pressure

Vacuum pressure

Moderate pressure

High pressure

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Hydraulics and Fluid Mechanics in ME
The stability of a dam is checked for

Sliding of the wall or dam

All of these

Tension at the base

Overturning of the wall or dam

Sliding of the wall or dam

All of these

Tension at the base

Overturning of the wall or dam

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Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a siphon, an air vessel is provided

At the outlet

At the inlet

At the summit

At any point between inlet and outlet

At the outlet

At the inlet

At the summit

At any point between inlet and outlet

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Hydraulics and Fluid Mechanics in ME
Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump)

(w Q ηo) / Hm

(w Hm) / (Q × ηo)

(w Hm Q) / ηo

(w Q) / (Hm × ηo)

(w Q ηo) / Hm

(w Hm) / (Q × ηo)

(w Hm Q) / ηo

(w Q) / (Hm × ηo)

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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME Theoretical power required (in watts) to drive a reciprocating pump is (where w = Specific weight of liquid to be pumped in N/m3, Q = Discharge of the pump in m3/s, Hs = Suction head in meters, and Hd = Delivery head in meters)

Hydraulics and Fluid Mechanics in ME A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called

Hydraulics and Fluid Mechanics in ME A Piezometer tube is used only for measuring

Hydraulics and Fluid Mechanics in ME The stability of a dam is checked for

Hydraulics and Fluid Mechanics in ME To avoid an interruption in the flow of a siphon, an air vessel is provided

Hydraulics and Fluid Mechanics in ME Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump)

Hydraulics and Fluid Mechanics in ME
Theoretical power required (in watts) to drive a reciprocating pump is (where w = Specific weight of liquid to be pumped in N/m3, Q = Discharge of the pump in m3/s, Hs = Suction head in meters, and Hd = Delivery head in meters)

Hydraulics and Fluid Mechanics in ME
A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called

Hydraulics and Fluid Mechanics in ME
A Piezometer tube is used only for measuring

Hydraulics and Fluid Mechanics in ME
The stability of a dam is checked for

Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a siphon, an air vessel is provided

Hydraulics and Fluid Mechanics in ME
Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump)