Newton's law of viscosity is a relationship between (A) Shear stress and the rate of angular distortion (B) Shear stress and viscosity (C) Shear stress, velocity and viscosity (D) Pressure, velocity and viscosity

Newton's law of viscosity is a relationship between
(A) Shear stress and the rate of angular distortion
(B) Shear stress and viscosity
(C) Shear stress, velocity and viscosity
(D) Pressure, velocity and viscosity
by

1 Answer

Answer :

Answer: Option A
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Related questions

Newton's law of viscosity relates the (A) Shear stress and velocity (B) Velocity gradient and pressure intensity (C) Shear stress and rate of angular deformation in a fluid (D) Pressure gradient and rate of angular deformation

Description : Newton's law of viscosity relates the (A) Shear stress and velocity (B) Velocity gradient and pressure intensity (C) Shear stress and rate of angular deformation in a fluid (D) Pressure gradient and rate of angular deformation

Last Answer : (C) Shear stress and rate of angular deformation in a fluid

Newton's law of viscosity is a relationship between (A) Pressure, velocity and temperature (B) Shear stress and rate of shear strain (C) Shear stress and velocity (D) Rate of shear strain and temperature

Description : Newton's law of viscosity is a relationship between (A) Pressure, velocity and temperature (B) Shear stress and rate of shear strain (C) Shear stress and velocity (D) Rate of shear strain and temperature

Last Answer : Answer: Option B

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

According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain. (A) Equal to (B) Directly proportional (C) Inversely proportional (D) None of these

Description : According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain. (A) Equal to (B) Directly proportional (C) Inversely proportional (D) None of these

Last Answer : Answer: Option B

Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, Vg = velocity gradient). (A) V2 (B) 1/V2 (C) 1/Vg (D) Vg

Description : Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, Vg = velocity gradient). (A) V2 (B) 1/V2 (C) 1/Vg (D) Vg

Last Answer : Option D

Pick out the wrong statement. (A) The form drag is dependent upon the occurrence of a wake (B) The shear stress at any given cross-section of a pipe for steady flow (either laminar or turbulent) varies linearly as the radial distance (C) An ideal fluid is the one, which has negligible surface tension and obeys the Newton's law of viscosity (D) Existence of the boundary layer in fluid flow is because of viscosity of the fluid

Description : Pick out the wrong statement. (A) The form drag is dependent upon the occurrence of a wake (B) The shear stress at any given cross-section of a pipe for steady flow (either laminar or turbulent ... of viscosity (D) Existence of the boundary layer in fluid flow is because of viscosity of the fluid

Last Answer : (C) An ideal fluid is the one, which has negligible surface tension and obeys the Newton's law of viscosity

Bulk modulus of a fluid is the ratio of (A) Shear stress to shear strain (B) Increase in volume to the viscosity of fluid (C) Increase in pressure to the volumetric strain (D) Critical velocity to the viscosity of fluid

Description : Bulk modulus of a fluid is the ratio of (A) Shear stress to shear strain (B) Increase in volume to the viscosity of fluid (C) Increase in pressure to the volumetric strain (D) Critical velocity to the viscosity of fluid

Last Answer : Answer: Option C

Consider the following statements in respect of steady laminar flow through a circular pipe: 1. Shear stress is zero on the central axis of the pipe 2. Discharge varies directly with the viscosity of the fluid 3. Velocity is maximum at the centre of the pipe. 4. Hydraulic gradient varies as the square of the mean velocity of flow. Which of these statements are correct? (a) 1, 2 , 3 & 4 (b) 1 & 3 only (c) 2 & 4 only (d)3 & 4 only

Description : Consider the following statements in respect of steady laminar flow through a circular pipe: 1. Shear stress is zero on the central axis of the pipe 2. Discharge varies directly with the viscosity of the fluid 3. Velocity is maximum at the ... 2 , 3 & 4 (b) 1 & 3 only (c) 2 & 4 only (d)3 & 4 only

Last Answer : (b) 1 & 3 only

The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called (A) Newton's law of motion (B) Newton's law of cooling (C) Newton's law of viscosity (D) Newton's law of resistance

Description : The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called (A) Newton's law of motion (B) Newton's law of cooling (C) Newton's law of viscosity (D) Newton's law of resistance

Last Answer : Answer: Option D

Working principle of dead weight pressure gauge tester is based on (A) Pascal's law (B) Dalton's law of partial pressure (C) Newton's law of viscosity (D) Avogadro's hypothesis

Description : Working principle of dead weight pressure gauge tester is based on (A) Pascal's law (B) Dalton's law of partial pressure (C) Newton's law of viscosity (D) Avogadro's hypothesis

Last Answer : Answer: Option A

In the Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is __________ the fluid viscosity. (A) Directly proportional to (B) Inversely proportional to (C) Inversely proportional to the square root of (D) Independent of

Description : In the Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is __________ the fluid viscosity. (A) Directly proportional to (B) Inversely proportional to (C) Inversely proportional to the square root of (D) Independent of

Last Answer : (B) Inversely proportional to

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

Description : 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 ... . (A) I, II, III (B) II, III, V (C) I, II, V (D) II, IV, V

Last Answer : (B) II, III, V

Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocity(B) Newton's law of viscosity is not applicable to the turbulent flow of fluidwith linear velocity distribution(C) Laminar flow of viscous liquids is involved in the lubrication of varioustypes of bearings(D) Rise of water in capillary tubes reduces with the increasing diameter ofcapillary tubes

Description : Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocit (B) Newton's law of viscosity is not applicable to the ... types of bearings (D) Rise of water in capillary tubes reduces with the increasing diameter of capillary tubes

Last Answer : (B) Newton's law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution

Pick out the correct statement. (A) Human blood is a Newtonian fluid (B) A Newtonian fluid obeys Newton's law of cooling (C) For a non-Newtonian fluid, a straight line passes through the origin in a plot between shear stress and shear gradien

Description : Pick out the correct statement. (A) Human blood is a Newtonian fluid (B) A Newtonian fluid obeys Newton's law of cooling (C) For a non-Newtonian fluid, a straight line passes through the origin in a plot between shear stress and shear gradien

Last Answer : (B) A Newtonian fluid obeys Newton's law of cooling

Pick out the wrong statement. (A) Momentum transfer in laminar flow results from velocity gradient (B) A fluid in equilibrium is not free from shear stress (C) The viscosity of a non-Newtonian fluid is a function of temperature only (D) Both (B) and (C)

Description : Pick out the wrong statement. (A) Momentum transfer in laminar flow results from velocity gradient (B) A fluid in equilibrium is not free from shear stress (C) The viscosity of a non-Newtonian fluid is a function of temperature only (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

A Bingham fluid of viscosity μ = 10 Pa.s and yield stress, τ0 = 10 KPa, is shared between flat parallel plates separated by a distance of 10 -3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is (A) 10 KPa (B) 20 KPa (C) 30 KPa (D) 40 KPa

Description : A Bingham fluid of viscosity μ = 10 Pa.s and yield stress, τ0 = 10 KPa, is shared between flat parallel plates separated by a distance of 10 -3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is (A) 10 KPa (B) 20 KPa (C) 30 KPa (D) 40 KPa

Last Answer : (B) 20 KPa

An ideal flow of any fluid must satisfy (A) Pascal law (B) Newton's law of viscosity (C) Boundary layer theory (D) Continuity equation

Description : An ideal flow of any fluid must satisfy (A) Pascal law (B) Newton's law of viscosity (C) Boundary layer theory (D) Continuity equation

Last Answer : Answer: Option D

An ideal flow of any fluid must fulfill the following (A) Newton's law of motion (B) Newton's law of viscosity (C) Pascal' law (D) Continuity equation

Description : An ideal flow of any fluid must fulfill the following (A) Newton's law of motion (B) Newton's law of viscosity (C) Pascal' law (D) Continuity equation

Last Answer : Answer: Option D

A fluid which obeys the Newton's law of viscosity is termed as(A) Real fluid (B) Ideal fluid (C) Newtonian fluid (D) Non-Newtonian fluid

Description : A fluid which obeys the Newton's law of viscosity is termed as (A) Real fluid (B) Ideal fluid (C) Newtonian fluid (D) Non-Newtonian fluid

Last Answer : Answer: Option C

Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Description : Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Last Answer : b) Distortion energy theory

A transmission shaft subjected to pure bending moment should be designed on the basis of (A) Maximum principal stress theory (B) Maximum shear stress theory (C) Distortion energy theory (D) Goodman or Soderberg diagrams

Description : A transmission shaft subjected to pure bending moment should be designed on the basis of (A) Maximum principal stress theory (B) Maximum shear stress theory (C) Distortion energy theory (D) Goodman or Soderberg diagrams

Last Answer : (A) Maximum principal stress theory

Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Description : Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Last Answer : b) Distortion energy theory

Distortion energy theory is slightly liberal as compared to maximum shear stress theory. a) True b) False

Description : Distortion energy theory is slightly liberal as compared to maximum shear stress theory. a) True b) False

Last Answer : a) True

Shear stress causes (a) Deformation (b) Distortion (c) Deformation as well as distortion (d) None

Description : Shear stress causes (a) Deformation (b) Distortion (c) Deformation as well as distortion (d) None

Last Answer : b) Distortion

Shear stress causes (a) Deformation (b) Distortion (c) Displacement (d) None

Description : Shear stress causes (a) Deformation (b) Distortion (c) Displacement (d) None

Last Answer : (b) Distortion

Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow. (A) Sum (B) Different (C) Product (D) Ratio

Description : Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow. (A) Sum (B) Different (C) Product (D) Ratio

Last Answer : Answer: Option C

Poise is the unit of (A) Surface tension (B) Capillarity (C) Viscosity (D) Shear stress in fluids

Description : Poise is the unit of (A) Surface tension (B) Capillarity (C) Viscosity (D) Shear stress in fluids

Last Answer : Answer: Option C

At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be (A) Minimum (B) Maximum (C) Zero (D) Could be any value

Description : At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be (A) Minimum (B) Maximum (C) Zero (D) Could be any value

Last Answer : Answer: Option D

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

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

Last Answer : (D) None of these

03. A fluid whose viscosity changes with the rate of deformation or shear strain is known as Non￾Newtonian fluid. A) True B) False

Description : 03. A fluid whose viscosity changes with the rate of deformation or shear strain is known as Non￾Newtonian fluid. A) True B) False

Last Answer : A

A fluid whose viscosity does not change with the rate of deformation or shear strain is known as (A) Real fluid (B) Ideal fluid (C) Newtonian fluid (D) Non-Newtonian fluid

Description : A fluid whose viscosity does not change with the rate of deformation or shear strain is known as (A) Real fluid (B) Ideal fluid (C) Newtonian fluid (D) Non-Newtonian fluid

Last Answer : Answer: Option C

Which one of the following statements is true for Mohr-Coulomb envelope? (A) Coulomb suggests that the relationship between shear strength and normal stress, is adequately represented by the straight line (B) The generalised Mohr theory suggests that, though the shear stress depends on the normal stress, the relation is not linear (C) Coulomb and Mohr suggest that a definite relationship exists among the principal stress and the angle of internal friction (D) All the above

Description : Which one of the following statements is true for Mohr-Coulomb envelope? (A) Coulomb suggests that the relationship between shear strength and normal stress, is adequately represented by the straight line ... exists among the principal stress and the angle of internal friction (D) All the above

Last Answer : Answer: Option D

. A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an __________ fluid. (A) Newtonian (B) Non-Newtonian (C) Ideal (D) Incompressible

Description : . A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an __________ fluid. (A) Newtonian (B) Non-Newtonian (C) Ideal (D) Incompressible

Last Answer : (A) Newtonian

Pick out the correct statement. (A) A forced vortex occurs when fluid rotates as a solid about an axis (B) In laminar flow, Newton's law of viscosity does not apply (C) A free vortex occurs, when fluid rotates as a solid (D) In turbulent flow, there are neither cross-currents nor eddies

Description : Pick out the correct statement. (A) A forced vortex occurs when fluid rotates as a solid about an axis (B) In laminar flow, Newton's law of viscosity does not apply (C) A free vortex occurs, when fluid rotates as a solid (D) In turbulent flow, there are neither cross-currents nor eddies

Last Answer : (A) A forced vortex occurs when fluid rotates as a solid about an axis

An ideal fluid is (A) Frictionless & incompressible (B) One, which obeys Newton's law of viscosity (C) Highly viscous (D) None of these

Description : An ideal fluid is (A) Frictionless & incompressible (B) One, which obeys Newton's law of viscosity (C) Highly viscous (D) None of these

Last Answer : (A) Frictionless & incompressible

Which law/principle of solid mechanics is similar/equivalent to Newton's law of viscosity in fluid mechanics? (A) Archimedes principle (B) Newton's second law of motion (C) Hooke's law (D) Newton's third law of motion

Description : Which law/principle of solid mechanics is similar/equivalent to Newton's law of viscosity in fluid mechanics? (A) Archimedes principle (B) Newton's second law of motion (C) Hooke's law (D) Newton's third law of motion

Last Answer : (C) Hooke's law

A Newtonian fluid is that (A) Which follows Newton's law of motion (B) Which needs a minimum shear, before it starts deforming (C) For which shear & deformation are related as T = µ (∂u/∂y) (D) None of these

Description : A Newtonian fluid is that (A) Which follows Newton's law of motion (B) Which needs a minimum shear, before it starts deforming (C) For which shear & deformation are related as T = µ (∂u/∂y) (D) None of these

Last Answer : (C) For which shear & deformation are related as T = µ (∂u/∂y)

When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure (A) Varies as the square of the radial distanceB) Increases linearly as its radial distance (C) Increases as the square of the radial distance (D) Decreases as the square of the radial distance

Description : When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure (A) Varies as the square of the radial distance B) Increases linearly as ... as the square of the radial distance (D) Decreases as the square of the radial distance

Last Answer : Answer: Option A

The relationship among twisting moment(T) acting on a rotating shaft, power in watt(W), and angular velocity in radian per second(w) will be (a) T = W/w (b) W = Tw (c) W = T/w (d) none of these

Description : The relationship among twisting moment(T) acting on a rotating shaft, power in watt(W), and angular velocity in radian per second(w) will be (a) T = W/w (b) W = Tw (c) W = T/w (d) none of these

Last Answer : (b) W = Tw

Liquids transmit pressure equally in all the directions. This is according to (A) Boyle's law (B) Archimedes principle (C) Pascal's law (D) Newton's formula

Description : Liquids transmit pressure equally in all the directions. This is according to (A) Boyle's law (B) Archimedes principle (C) Pascal's law (D) Newton's formula

Last Answer : Answer: Option C

In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the (A) Square root of the velocity (B) Square of the viscosity (C) Filtration time only (D) Washing time only

Description : In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the (A) Square root of the velocity (B) Square of the viscosity (C) Filtration time only (D) Washing time only

Last Answer : (A) Square root of the velocity

Shear strain energy theory is also known as (a) Coulomb’s theory (b) Distortion energy theory (c) Rankine theory (d) None

Description : Shear strain energy theory is also known as (a) Coulomb’s theory (b) Distortion energy theory (c) Rankine theory (d) None

Last Answer : (b) Distortion energy theory

A fluid is the one, which (A) Cannot remain at rest under the action of shear force (B) Continuously expands till it fills any container (C) Is incompressible (D) Permanently resists distortion

Description : A fluid is the one, which (A) Cannot remain at rest under the action of shear force (B) Continuously expands till it fills any container (C) Is incompressible (D) Permanently resists distortion

Last Answer : (A) Cannot remain at rest under the action of shear force

For shear strength, triaxial shear test is suitable because (A) It can be performed under all three drainage conditions (B) Precise measurement of the pore pressure and volume change during the test is possible (C) Stress distribution on the failure plane, is uniform (D) All the above

Description : For shear strength, triaxial shear test is suitable because (A) It can be performed under all three drainage conditions (B) Precise measurement of the pore pressure and volume change during the test is possible (C) Stress distribution on the failure plane, is uniform (D) All the above

Last Answer : (D) All the above

The direct shear test suffers from the following disadvantage: (A) Drain condition cannot be controlled (B) Pore water pressure cannot be measured (C) Shear stress on the failure plane is not uniform (D) The area under the shear and vertical loads does not remain constant throughout the test

Description : The direct shear test suffers from the following disadvantage: (A) Drain condition cannot be controlled (B) Pore water pressure cannot be measured (C) Shear stress on the failure plane is not uniform (D) The area under the shear and vertical loads does not remain constant throughout the test

Last Answer : Answer: Option C

Pick up the correct statement from the following: (A) An unconfined compression test is a special case of triaxial compression test (B) An unconfined compression test is a special case of direct shear test (C) The confining pressure is maximum during an unconfined compression test (D) The cylindrical specimen of a soil is subjected to major principal stress till it fails due to shearing along the plane of the failure

Description : Pick up the correct statement from the following: (A) An unconfined compression test is a special case of triaxial compression test (B) An unconfined compression test is a special case of direct ... subjected to major principal stress till it fails due to shearing along the plane of the failure

Last Answer : Option A

A triaxial shear test is preferred to direct shear test, because (A) It can be performed under all three drainage conditions with complete control (B) Precise measurement of pore pressure and change in volume during test, is not possible (C) Stress distribution on the failure plane, is non uniform (D) None of these

Description : A triaxial shear test is preferred to direct shear test, because (A) It can be performed under all three drainage conditions with complete control (B) Precise measurement of pore pressure and change in ... possible (C) Stress distribution on the failure plane, is non uniform (D) None of these

Last Answer : Answer: Option A

Based on punching shear consideration, the overall depth of a combined footing under a column A, is (A) (Area of the column A × Safe punching stress)/Load on column A (B) (Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column) (C) (Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column) (D) None of these

Description : Based on punching shear consideration, the overall depth of a combined footing under a column A, is (A) (Area of the column A Safe punching stress)/Load on column A (B) (Perimeter of column A ... punching stress)/(Load on column A Upward pressure Area of the column) (D) None of these

Last Answer : Answer: Option B

In a static fluid (A) Resistance to shear stress is small (B) Fluid pressure is zero (C) Linear deformation is small (D) Only normal stresses can exist

Description : In a static fluid (A) Resistance to shear stress is small (B) Fluid pressure is zero (C) Linear deformation is small (D) Only normal stresses can exist

Last Answer : Answer: Option D

The pressure drop in a 30 cm diameter horizontal pipe is 60 kPa in distance of 15m. The wall shear stress in kPa is (a) 0.1 (b) 0.2 (c) 0.3 (d) 0.4

Description : The pressure drop in a 30 cm diameter horizontal pipe is 60 kPa in distance of 15m. The wall shear stress in kPa is (a) 0.1 (b) 0.2 (c) 0.3 (d) 0.4

Last Answer : (c) 0.3