Fluid Mechanics for Chemical

Which of the following is used for very accurate measurement of flow of gas at low velocity ?

Byadmin March 9, 2019August 26, 2021

Which of the following is used for very accurate measurement of flow of gas at low velocity ?

A. Pitot tube
B. Rotameter
C. Segmental orificemeter
D. Hot wire anemometer

Fluid Mechanics for Chemical

A stream tube is that, which has ______________________ cross-section entirely bounded by stream lines?

A stream tube is that, which has ______________________ cross-section entirely bounded by stream lines?

A. A circular
B. Any convenient
C. A small
D. A large

Read More A stream tube is that, which has ______________________ cross-section entirely bounded by stream lines?
Fluid Mechanics for Chemical

The value of critical Reynolds number for pipe flow is_________________?

The value of critical Reynolds number for pipe flow is_________________?

A. 1,300
B. 10,000
C. 100,000
D. None of these

Read More The value of critical Reynolds number for pipe flow is_________________?
Fluid Mechanics for Chemical

Flow measurement in an open channel is done by a/an ________________?

Flow measurement in an open channel is done by a/an ________________?

A. Venturimeter
B. Orificemeter
C. Weir
D. Rotameter

Read More Flow measurement in an open channel is done by a/an ________________?
Fluid Mechanics for Chemical

For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the wall of the pipe and the friction velocity ‘v’, and it follows a _____________ relationship?

For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the wall of the pipe and the friction velocity ‘v’, and it follows a _____________ relationship?

A. Logarithmic
B. Linear
C. Hyperbolic
D. Parabolic

Read More For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the wall of the pipe and the friction velocity ‘v’, and it follows a _____________ relationship?
Fluid Mechanics for Chemical

The Prandtl mixing length is_________________?

The Prandtl mixing length is_________________?

A. Zero at the pipe wall and is a universal constant
B. Independent of radial distance from the pipe axis
C. Independent of the shear stress
D. Useful for computing laminar flow problems

Read More The Prandtl mixing length is_________________?
Fluid Mechanics for Chemical

The exit cone angle in case of a standard Venturimeter is _____________ the entrance cone angle?

The exit cone angle in case of a standard Venturimeter is _____________ the entrance cone angle?

A. Smaller than
B. Greater than
C. Equal to
D. Either A. or B.

Read More The exit cone angle in case of a standard Venturimeter is _____________ the entrance cone angle?

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