Fluid Mechanics for Chemical

Air vessel fitted to a reciprocating pump____________________?

Byadmin March 9, 2019August 26, 2021

Air vessel fitted to a reciprocating pump____________________?

A. Increases the work done
B. Decreases the work done
C. Causes cavitation
D. Results in non-uniform discharge

Fluid Mechanics for Chemical

Which is the correct relationship for a centrifugal pump? (Where, D = Impeller diameter, inches H = Head developed, ft of liquid pumped N = Speed of pump, rpm) ?

Which is the correct relationship for a centrifugal pump? (Where, D = Impeller diameter, inches H = Head developed, ft of liquid pumped N = Speed of pump, rpm) ?

A. D = 1840 H0.5/N
B. D = 1840 N/H0.5
C. H = 1840 D0.5/N
D. D = 1840 H/N

Read More Which is the correct relationship for a centrifugal pump? (Where, D = Impeller diameter, inches H = Head developed, ft of liquid pumped N = Speed of pump, rpm) ?
Fluid Mechanics for Chemical

A gas (density = 1.5 kg/m3, viscosity = 2 × 10‒5 kg/m.s) flowing through a packed bed (particle size = 0.5 cm, porosity = 0.5) at a superficial velocity of 2 m/s causes a pressure drop of 8400 Pa/m. The pressure drop for another gas, with density of 1.5 kg/m3and viscosity of 3 × 10‒5kg/m.s flowing at 3 m/s will be________________?

A gas (density = 1.5 kg/m3, viscosity = 2 × 10‒5 kg/m.s) flowing through a packed bed (particle size = 0.5 cm, porosity = 0.5) at a superficial velocity of 2 m/s causes a pressure drop of 8400 Pa/m. The pressure drop for another gas, with density of 1.5 kg/m3and viscosity of 3 × 10‒5kg/m.s flowing at 3 m/s will be________________?

A. 8400 Pa/m
B. 12600 Pa/m
C. 18900 Pa/m
D. 16800 Pa/m

Read More A gas (density = 1.5 kg/m3, viscosity = 2 × 10‒5 kg/m.s) flowing through a packed bed (particle size = 0.5 cm, porosity = 0.5) at a superficial velocity of 2 m/s causes a pressure drop of 8400 Pa/m. The pressure drop for another gas, with density of 1.5 kg/m3and viscosity of 3 × 10‒5kg/m.s flowing at 3 m/s will be________________?
Fluid Mechanics for Chemical

f = 16/NRe, is valid for__________________?

f = 16/NRe, is valid for__________________?

A. Turbulent flow
B. Laminar flow through an open channel
C. Steady flow
D. None of these

Read More f = 16/NRe, is valid for__________________?
Fluid Mechanics for Chemical

Which of the following pipe bends will incur the largest head loss ?

Which of the following pipe bends will incur the largest head loss ?

A. U-bend
B. 30° bend
C. 45° bend
D. 90° bend

Read More Which of the following pipe bends will incur the largest head loss ?
Fluid Mechanics for Chemical

For an ideal fluid flow, Reynolds number is___________________?

For an ideal fluid flow, Reynolds number is___________________?

A. 2100
B. 100
C. 0
D. ∞

Read More For an ideal fluid flow, Reynolds number is___________________?
Fluid Mechanics for Chemical

Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton’s law of viscosity. (II) Newton’s second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary?

Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton’s law of viscosity. (II) Newton’s second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary?

A. I, II, III
B. II, III, V
C. I, II, V
D. II, IV, V

Read More Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton’s law of viscosity. (II) Newton’s second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary?

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