Which of the following is a dimensionless parameter? (A) Angular velocity (B) Specific weight (C) Kinematic viscosity (D) None of these

Which of the following is a dimensionless parameter?
(A) Angular velocity
(B) Specific weight
(C) Kinematic viscosity
(D) None of these
by

1 Answer

Answer :

(D) None of these
by

Related questions

Which of the following is dimensionless? (A) Angular velocity (B) Fanning friction factor (C) Specific volume (D) None of these

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Which of the following is not a dimension-less parameter? (A) Pressure-co-efficient (B) Froude number (C) Kinematic viscosity (D) Weber number

Description : Which of the following is not a dimension-less parameter? (A) Pressure-co-efficient (B) Froude number (C) Kinematic viscosity (D) Weber number

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Last Answer : Answer: Option A

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. Boiling point elevation for a strong and concentrated solution is found by Duhring's rule, which states that at the same pressure, the boiling point of a solution is a linear function of the __________ of pure water. (A) Boiling point (B) Dynamic viscosity (C) Kinematic viscosity (D) Density

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Which of the following is dimensionless? (A) Specific weight (B) Specific volume (C) Specific speed (D) Specific gravity

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Which of the following is the unit of kinematic viscosity? (A) Pascal (B) Poise (C) Stoke (D) Faraday

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Kinematic viscosity is equal to (A) Dynamic viscosity/density (B) Dynamic viscosity × density (C) Density/dynamic viscosity (D) 1/dynamic viscosity × density

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The units of kinematic viscosity are (A) Metres² per sec (B) kg sec/metre (C) Newton-sec per metre (D) Newton-sec per metre

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Stoke is the unit of (A) Kinematic viscosity in C. G. S. units (B) Kinematic viscosity in M. K. S. units (C) Dynamic viscosity in M. K. S. units (D) Dynamic viscosity in S. I. units

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What Is Kinematic Viscosity?

Description : What Is Kinematic Viscosity?

Last Answer : The kinematic viscosity is the ratio of absolute viscosity to the density of the liquid.

In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are. (A) μ , α and θ all have units of m/s (B) μ , α and θ all have units of m2/s (C) α and θ have units of m2/s, while μ has unit of m/s (D) α and θ have units of m/s, while μ has unit of m2/s

Description : In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are. (A) μ , α and θ all have units of m/ ... μ has unit of m/s (D) α and θ have units of m/s, while μ has unit of m2/s

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Minimum fluidisation velocity for a specific system depends upon the (A) Particle size (B) Fluid viscosity (C) Density of both the particle & the fluid (D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C)

The terminal velocity of a small sphere settling in a viscous fluid varies as the (A) First power of its diameter (B) Inverse of the fluid viscosity (C) Inverse square of the diameter (D) Square of the difference in specific weights of solid & fluid

Description : The terminal velocity of a small sphere settling in a viscous fluid varies as the (A) First power of its diameter (B) Inverse of the fluid viscosity (C) Inverse square of the diameter (D) Square of the difference in specific weights of solid & fluid

Last Answer : (B) Inverse of the fluid viscosity

Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict pressure drop

Description : Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict pressure drop

Last Answer : (A) Increase

A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20microns settling in the same oil will have a settling velocity (A) Same as that of A (B) One fourth as that of A (C) Twice as that of A (D) Four times as that of A

Description : A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20microns settling in the same oil will have a settling velocity (A) ... ) One fourth as that of A (C) Twice as that of A (D) Four times as that of A

Last Answer : (B) One fourth as that of A

The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its (A) Viscosity (B) Specific volume (C) Velocity (D) None of these

Description : The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its (A) Viscosity (B) Specific volume (C) Velocity (D) None of these

Last Answer : (B) Specific volume

As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to (where, μ = fluid viscosity) (A) 1/μ (B) μ (C) μ 2 (D) 1/μ

Description : As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to (where, μ = fluid viscosity) (A) 1/μ (B) μ (C) μ 2 (D) 1/μ

Last Answer : (B) μ

If the specific gravity of a soil particle of 0.05 cm diameter is 2.67, its terminal velocity while settling in distilled water of viscosity, 0.01 poise, is (A) 0.2200 cm/sec (B) 0.2225 cm/sec (C) 0.2250 cm/sec (D) 0.2275 cm/sec

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Last Answer : (D) 0.2275 cm/sec

The periodic time of a body moving in Simple Harmonic Motion is a.Directly proportional to its angular velocity b.Directly proportional to the weight of the body c.Inversely proportional to the square of angular velocity d.Directly proportional to the momentum of swinging body e.Inversely proportional to the angular velocity

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Last Answer : e. Inversely proportional to the angular velocity

Which of the following is not a dimension-less parameter? (A) Euler number (B) Specific gravity (C) Fanning friction factor (D) None of these

Description : Which of the following is not a dimension-less parameter? (A) Euler number (B) Specific gravity (C) Fanning friction factor (D) None of these

Last Answer : (D) None of these

For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the (A) Square of the radial distance (B) Radial distance linearly (C) Inverse of the radial distance(D) Elevation along vertical direction

Description : For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the (A) Square of the radial distance (B) Radial distance linearly (C) Inverse of the radial distance (D) Elevation along vertical direction

Last Answer : (A) Square of the radial distance

The work index in Bond's law for crushing of solids has the following dimensions (A) No units (dimensionless) (B) kWh/ton (C) kW/ton (D) kWh.m1/2 /ton

Description : The work index in Bond's law for crushing of solids has the following dimensions (A) No units (dimensionless) (B) kWh/ton (C) kW/ton (D) kWh.m1/2 /ton

Last Answer : (B) kWh/ton