The friction factor for turbulent flow in a hydraulically smooth pipe______________?

Byadmin March 10, 2019August 27, 2021

The friction factor for turbulent flow in a hydraulically smooth pipe______________?

A. Depends only on Reynolds number
B. Does not depend on Reynolds number
C. Depends on the roughness
D. None of these

Fluid Mechanics for Chemical

In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is___________________?

In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is___________________?

A. The velocity of sound
B. Dependent on its cross-sectional area
C. Dependent on fluid viscosity
D. Dependent on fluid density

Read More In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is___________________?
Fluid Mechanics for Chemical

A Newtonian liquid (ρ = density, μ = viscosity) is flowing with velocity „v‟ in a tube of diameter ‘D’. Let Δp be the pressure drop across the length ‘L’. For a laminar flow, Δp is proportional to_________________?

A Newtonian liquid (ρ = density, μ = viscosity) is flowing with velocity „v‟ in a tube of diameter ‘D’. Let Δp be the pressure drop across the length ‘L’. For a laminar flow, Δp is proportional to_________________?

A. Lρv2/D
B. LμV/D2
C. Dρv2/L
D. μV/L

Read More A Newtonian liquid (ρ = density, μ = viscosity) is flowing with velocity „v‟ in a tube of diameter ‘D’. Let Δp be the pressure drop across the length ‘L’. For a laminar flow, Δp is proportional to_________________?
Fluid Mechanics for Chemical

Centrifugal pumps as compared to reciprocating pumps__________________?

Centrifugal pumps as compared to reciprocating pumps__________________?

A. Run at a lower speed for the same discharge
B. Do not need priming
C. Deliver fluid with pulsating/fluctuating discharge
D. Can be run with discharge line valve closed for a short interval

Read More Centrifugal pumps as compared to reciprocating pumps__________________?
Fluid Mechanics for Chemical

Applying a pressure drop across a capillary results in a volumetric flow rate ‘Q’ under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is____________________?

Applying a pressure drop across a capillary results in a volumetric flow rate ‘Q’ under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is____________________?

A. Q/2
B. Q/4
C. Q/8
D. Q/16

Read More Applying a pressure drop across a capillary results in a volumetric flow rate ‘Q’ under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is____________________?
Fluid Mechanics for Chemical

The time of oscillation of a floating body is _________________?

The time of oscillation of a floating body is _________________?

A. Longer, if Metacentric height is increased
B. Independent of the Metacentric height
C. Dependent on the buoyant forces only
D. None of these

Read More The time of oscillation of a floating body is _________________?
Fluid Mechanics for Chemical

A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double___________________?

A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double___________________?

A. Head
B. Discharge
C. Efficiency
D. None of these

Read More A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double___________________?

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