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Industrial Instrumentation: Flow Sensors and Metering

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Industrial Instrumentation: Flow Sensors and Metering

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Questions and Answers

What is the relationship between total pressure and static pressure in an ideal flow through a nozzle?

Total pressure is the difference between static and dynamic pressure

Total pressure is equal to static pressure

Total pressure is half of the static pressure

Total pressure is the sum of static and dynamic pressure (correct)

What is the condition for incompressible flow?

Pressure is constant

Velocity is constant

Density is constant (correct)

Flow rate is constant

What is the relationship between the flow rates at the inlet and outlet of a nozzle for an incompressible flow?

Q1 < Q2

Q1 is proportional to Q2

Q1 = Q2 (correct)

Q1 > Q2

What is the expression for the dynamic pressure in a nozzle?

1/2 ρv^2 Signup and view all the answers

What is the value of the compressibility factor C for an incompressible flow?

1 Signup and view all the answers

What is the expression for the flow rate through a nozzle for a real flow?

YC A2 1 (√(A2/A1) - 1) √(2ΔP/ρ) Signup and view all the answers

What is the relationship between the pressure difference ΔP and the areas A1 and A2 of a nozzle for an ideal flow?

ΔP = P1 - P2 = 1/2 ρv2 (1 - (A2/A1)^2) Signup and view all the answers

What is the expression for the velocity at the outlet of a nozzle for an ideal flow?

v2 = √(2ΔP/ρ) (1 - (A2/A1)) Signup and view all the answers

What is the condition for the flow to be considered as an ideal flow through a nozzle?

The flow is frictionless Signup and view all the answers

What is the relationship between the total pressure and the static pressure at a point in a nozzle flow?

P0 = P + 1/2 ρv^2 Signup and view all the answers

Industrial Instrumentation: Flow Sensors and Metering

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Questions and Answers

What is the relationship between total pressure and static pressure in an ideal flow through a nozzle?

What is the condition for incompressible flow?

What is the relationship between the flow rates at the inlet and outlet of a nozzle for an incompressible flow?

What is the expression for the dynamic pressure in a nozzle?

What is the value of the compressibility factor C for an incompressible flow?

What is the expression for the flow rate through a nozzle for a real flow?

What is the relationship between the pressure difference ΔP and the areas A1 and A2 of a nozzle for an ideal flow?

What is the expression for the velocity at the outlet of a nozzle for an ideal flow?

What is the condition for the flow to be considered as an ideal flow through a nozzle?

What is the relationship between the total pressure and the static pressure at a point in a nozzle flow?

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