For a channel section, the shear centre lies at a distance of (A) dbt/2I (B) d²bt/3I (C) d²b²t/4I (D) db²t/5I

For a channel section, the shear centre lies at a distance of 

(A) dbt/2I

(B) d²bt/3I

(C) d²b²t/4I

(D) db²t/5I

by

1 Answer

Answer :

(C) d²b²t/4I

by

Related questions

The initial velocity of an object is vector u = 5i + 10j m/s. Its constant acceleration is vector a = 2i + 3j m/s^2.

Description : The initial velocity of an object is vector u = 5i + 10j m/s. Its constant acceleration is vector a = 2i + 3j m/s^2.

Last Answer : The initial velocity of an object is vector u = 5i + 10j m/s. Its constant acceleration is ... Determine the velocity and the displacement after 5 s.

If A = 5i + 6j + 4k and B = 2i - 2j + 3k determine the angle between A and B.

Description : If A = 5i + 6j + 4k and B = 2i - 2j + 3k determine the angle between A and B.

Last Answer : If A = 5i + 6j + 4k and B = 2i - 2j + 3k determine the angle between A and B.

A couple consists of a force P acting at a point A whose coordinates are (-1,2,4) m and force - F acting at a point whose coordinates are (2,3, -2)m. If F = 3i + 2j - 4k in kg units the moment of the couple in kg - m units would be a.8i - 6j - 3k b.12i - 3j + k c.16i - 12j - 6k d.4i - 3j + k e.8i + 5j + 3k

Description : A couple consists of a force P acting at a point A whose coordinates are (-1,2,4) m and force - F acting at a point whose coordinates are (2,3, -2)m. If F = 3i + 2j - 4k in kg units the moment of the couple in kg - m ... .8i - 6j - 3k b.12i - 3j + k c.16i - 12j - 6k d.4i - 3j + k e.8i + 5j + 3k

Last Answer : a. 8i - 6j - 3k

Class 12 | Maths | Complex Numbers | Simplify -2i ( 3 + i )( 2 + 4i )( 1 + i ) and obtain the modulus of that complex number.

Description : Class 12 | Maths | Complex Numbers | Simplify -2i ( 3 + i )( 2 + 4i )( 1 + i ) and obtain the modulus of that complex number.

Last Answer : Solution :

A force F = 4i + 6j + 3k acting on a particle produces a displacement of S = 2i + 3j + 5k where F is expressed in newton and s in metre.

Description : A force F = 4i + 6j + 3k acting on a particle produces a displacement of S = 2i + 3j + 5k where F is expressed in newton and s in metre.

Last Answer : A force F = 4i + 6j + 3k acting on a particle produces a displacement of S = 2i + 3j + 5k where ... and s in metre. Find the work done by the force.

Given P = 4i – j + 8k and Q = 2i – mj + 4k find m if  P and Q have the same direction.

Description : Given P = 4i – j + 8k and Q = 2i – mj + 4k find m if  P and Q have the same direction.

Last Answer : Given P = 4i – j + 8k and Q = 2i – mj + 4k find m if P and Q have the same direction.

Find the vector that should be added to the sum of (2i - 5j + 3k) and (4i + 7j - 4k) to give a unit vector along the X-axis.

Description : Find the vector that should be added to the sum of (2i - 5j + 3k) and (4i + 7j - 4k) to give a unit vector along the X-axis.

Last Answer : Find the vector that should be added to the sum of (2i - 5j + 3k) and (4i + 7j - 4k) to give a unit vector along the X-axis.

The magnitude of scalar product of the vectors A = 2i + 5k and B = 3i + 4k is 

Description : The magnitude of scalar product of the vectors A = 2i + 5k and B = 3i + 4k is 

Last Answer : The magnitude of scalar product of the vectors A = 2i + 5k and B = 3i + 4k is (A) 20 (B) 22 (C) 26 (D) 29

If A = 2i + 7j + 3k and B = 3i + 2j + 5k, find the component of A along B.

Description : If A = 2i + 7j + 3k and B = 3i + 2j + 5k, find the component of A along B.

Last Answer : If A = 2i + 7j + 3k and B = 3i + 2j + 5k, find the component of A along B.

Determine vectors a × b, given a = 2i + 3j and b = 3i + 5j.

Description : Determine vectors a × b, given a = 2i + 3j and b = 3i + 5j.

Last Answer : Determine vectors a × b, given a = 2i + 3j and b = 3i + 5j.

Show that vectors a = 2i + 3j + 6k, b = 3i - 6j + 2k and c = 6i + 2j - 3k are mutually perpendicular.

Description : Show that vectors a = 2i + 3j + 6k, b = 3i - 6j + 2k and c = 6i + 2j - 3k are mutually perpendicular.

Last Answer : Show that vectors a = 2i + 3j + 6k, b = 3i - 6j + 2k and c = 6i + 2j - 3k are mutually perpendicular.

What is the volume of a parallelepiped whose sides are given by the vectors a 3i plus wj plus k b -i plus 3j and c 2i plus 2j plus 5k?

Description : What is the volume of a parallelepiped whose sides are given by the vectors a 3i plus wj plus k b -i plus 3j and c 2i plus 2j plus 5k?

Last Answer : What is the answer ?

For a two-rotor system, the length of one shaft (A) is twice the other (B), then what is the relation between the mass moment of inertia of the shafts. A 2I(A) = I(B) B I(A) = 2I(B) C I(A) = I(B) D 2I(A) = 3I(B)

Description : For a two-rotor system, the length of one shaft (A) is twice the other (B), then what is the relation between the mass moment of inertia of the shafts. A 2I(A) = I(B) B I(A) = 2I(B) C I(A) = I(B) D 2I(A) = 3I(B)

Last Answer : A 2I(A) = I(B)

The shear stress at any section of a shaft is maximum (A) At the centre of the section (B) At a distance r/2 from the centre (C) At the top of the surface (D) At a distance 3/4 r from the centre

Description : The shear stress at any section of a shaft is maximum  (A) At the centre of the section  (B) At a distance r/2 from the centre  (C) At the top of the surface  (D) At a distance 3/4 r from the centre 

Last Answer : (C) At the top of the surface 

In case of laminar flow of fluid through a circular pipe, the (A) Shear stress over the cross-section is proportional to the distance from the surface of the pipe (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder (C) Velocity profile varies hyperbolically and the shear stress remains constant over the cross-section (D) Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

Description : In case of laminar flow of fluid through a circular pipe, the (A) Shear stress over the cross-section is proportional to the distance from the surface of the pipe (B) Surface of velocity distribution is a ... occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

Last Answer : (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder

Pick up the correct statement from the following: (A) For channels, the shear centre does not coincide its centroid (B) The point of intersection of the bending axis with the cross section of the beam, is called shear centre (C) For I sections, the shear centre coincides with the centroid of the cross section of the beam (D) All the above

Description : Pick up the correct statement from the following:  (A) For channels, the shear centre does not coincide its centroid  (B) The point of intersection of the bending axis with the cross section ... shear centre coincides with the centroid of the cross section of the beam  (D) All the above

Last Answer : (D) All the above

In a shaft rotated by a couple, the shear force varies (A) From zero at the centre to a maximum at the circumference (B) From minimum at the centre of maximum at the circumference (C) From maximum at the centre to zero at the circumference (D) Equally throughout the section

Description : In a shaft rotated by a couple, the shear force varies (A) From zero at the centre to a maximum at the circumference (B) From minimum at the centre of maximum at the circumference (C) From maximum at the centre to zero at the circumference (D) Equally throughout the section

Last Answer : (A) From zero at the centre to a maximum at the circumference

surface lies at a distance equal to __________ the centre of gravity. (A) IG sin² / bellow (B) IG sin² / (C) IG sin / (D) IG sin /

Description : surface lies at a distance equal to __________ the centre of gravity. (A) IG sin² / bellow (B) IG sin² / (C) IG sin / (D) IG sin /

Last Answer : Answer: Option A

Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to (A) Shear force (B) Area of the section (C) Distance of the C.G. of the area from its neutral axis (D) Moment of the beam section about its neutral axis

Description : Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to (A) Shear force (B) Area of the section ... . of the area from its neutral axis (D) Moment of the beam section about its neutral axis

Last Answer : Answer: Option D

Critical section for shear in case of flat slabs is at a distance of (A) Effective depth of slab from periphery of column/drop panel (B) d/2 from periphery of column/capital/ drop panel (C) At the drop panel of slab (D) At the periphery of column

Description : Critical section for shear in case of flat slabs is at a distance of (A) Effective depth of slab from periphery of column/drop panel (B) d/2 from periphery of column/capital/ drop panel (C) At the drop panel of slab (D) At the periphery of column

Last Answer : Answer: Option B

For a reinforced concrete beam section, the shape of shear stress diagram is (a) Parabolic over the whole section with maximum value at the neutral axis. (b) Parabolic above the neutral axis and rectangular below the neutral axis. (c) Linearly varying as the distance form the N.A. (d) All the above.

Description : For a reinforced concrete beam section, the shape of shear stress diagram is (a) Parabolic over the whole section with maximum value at the neutral axis. (b) Parabolic above the neutral axis and rectangular below the neutral axis. (c) Linearly varying as the distance form the N.A. (d) All the above.

Last Answer : (b) Parabolic above the neutral axis and rectangular below the neutral axis.

What is the distance away from midspan of a plastic hinge if developing in a simply supported beam of rectangular cross-section and span 6 m, subjected to a point load at the centre? (a) Zero (b) 1 m (c) 2 m (d) 3 m

Description : What is the distance away from midspan of a plastic hinge if developing in a simply supported beam of rectangular cross-section and span 6 m, subjected to a point load at the centre? (a) Zero (b) 1 m (c) 2 m (d) 3 m

Last Answer : (a) Zero

Shear stress in a fluid flowing in a round pipe (A) Varies parabolically across the cross-section(B) Remains constant over the cross-section(C) Is zero at the centre and varies linearly with the radius(D) Is zero at the wall and increases linearly to the centre

Description : Shear stress in a fluid flowing in a round pipe (A) Varies parabolically across the cross-section (B) Remains constant over the cross-section (C) Is zero at the centre and varies linearly with the radius (D) Is zero at the wall and increases linearly to the centre

Last Answer : (C) Is zero at the centre and varies linearly with the radius

`A, B` and `C` are parallel conductors of equal length carrying currents `I, I` and `2I` respectively. Distance between `A` and `B` is `x`. Distance b

Description : `A, B` and `C` are parallel conductors of equal length carrying currents `I, I` and `2I` respectively. Distance between `A` and `B` is `x`. Distance b

Last Answer : `A, B` and `C` are parallel conductors of equal length carrying currents `I, I` and `2I` respectively. Distance ... F_(2)` D. `F_(1) = -F_(2)`

A sphere of radius r is cut from larger sphere of radius R. The distance between their centre is a. The centroid of the remaining valoume lies on the line of centres and the sistanc from the centre of the larger sphere is a.ar2 / (R2 - r2) b.107 dynes c.aR/(R2-r2) d.aR/(R - r) e.ar3 / (R3 - r3)

Description : A sphere of radius r is cut from larger sphere of radius R. The distance between their centre is a. The centroid of the remaining valoume lies on the line of centres and the sistanc from the centre of the larger sphere is a.ar2 / (R2 - r2) b.107 dynes c.aR/(R2-r2) d.aR/(R - r) e.ar3 / (R3 - r3)

Last Answer : e. ar3 / (R3 - r3)

Where can I find the best books for CSIR-DBT-ICAR-ICMR-ASRB-IARI-SET-NET?

Description : Where can I find the best books for CSIR-DBT-ICAR-ICMR-ASRB-IARI-SET-NET?

Last Answer : Dot-com you'll fight so many books in the other stuff that you mentioned they are very easy to download and very it was full so go and check it out

When dry bulb temperature (DBT) and wet bulb temperature (WBT) are measured, greater the difference between DBT and WBT, A. greater the amount of water vapour held in the mixture B. smaller the amount of water vapour held in the mixture C. same the amount of water vapour held in the mixture D. none of the above

Description : When dry bulb temperature (DBT) and wet bulb temperature (WBT) are measured, greater the difference between DBT and WBT, A. greater the amount of water vapour held in the mixture B. smaller the amount of ... the mixture C. same the amount of water vapour held in the mixture D. none of the above

Last Answer : ANSWER : B

The cooling tower uses the phenomenon of evaporative cooling to cool warm water above the dbt of air. A. true B. false

Description : The cooling tower uses the phenomenon of evaporative cooling to cool warm water above the dbt of air. A. true B. false

Last Answer : ANSWER : B

When air passes through silica gel, A. it absorbs water vapour molecules B. latent heat of condensation is released C.dbt of air increases D. all of the mentioned

Description : When air passes through silica gel, A. it absorbs water vapour molecules B. latent heat of condensation is released C.dbt of air increases D. all of the mentioned

Last Answer : ANSWER : D

The position vectors of three particles are given by  X1 = (5i + 5j)m, X2 = (5ti + 5tj)m, and X3 = (5ti + 10t^2tj)

Description : The position vectors of three particles are given by  X1 = (5i + 5j)m, X2 = (5ti + 5tj)m, and X3 = (5ti + 10t^2tj)

Last Answer : The position vectors of three particles are given by \(\overset\rightarrow{X}_1\) = (\(5\hat ... the velocity and acceleration for each, in SI units.

Given v1 = 5i + 2j and v2 = ai - 6j are perpendicular to each other, determine the value of a.

Description : Given v1 = 5i + 2j and v2 = ai - 6j are perpendicular to each other, determine the value of a.

Last Answer : Given v1 = 5i + 2j and v2 = ai - 6j are perpendicular to each other, determine the value of a.

The total current density is given as 0.5i + j – 1.5k units. Find the curl of the magnetic field intensity. a) 0.5i – 0.5j + 0.5k b) 0.5i + j -1.5k c) i – j + k d) i + j – k

Description : The total current density is given as 0.5i + j – 1.5k units. Find the curl of the magnetic field intensity. a) 0.5i – 0.5j + 0.5k b) 0.5i + j -1.5k c) i – j + k d) i + j – k

Last Answer : b) 0.5i + j -1.5k

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

In a purely cohesive soil, the critical centre lies at the intersection of (A) Perpendicular bisector of slope and the locus of the centre (B) Perpendicular drawn at 1/3rd slope from toe and the locus of the centre (C) Perpendicular drawn at 2/3rd slope from toe and the locus of the centre (D) Directional angles

Description : In a purely cohesive soil, the critical centre lies at the intersection of (A) Perpendicular bisector of slope and the locus of the centre (B) Perpendicular drawn at 1/3rd slope from toe and the ... C) Perpendicular drawn at 2/3rd slope from toe and the locus of the centre (D) Directional angles

Last Answer : Answer: Option D

06. A body floating in a liquid is said to be not in equilibrium if its metacentre lies below its centre of gravity. A) Agree B) Disagree

Description : 06. A body floating in a liquid is said to be not in equilibrium if its metacentre lies below its centre of gravity. A) Agree B) Disagree

Last Answer : A

The total energy line lies over the centre line of the pipe by an amount equal to (A) Pressure head (B) Velocity head (C) Pressure head + velocity head (D) Pressure head - velocity head

Description : The total energy line lies over the centre line of the pipe by an amount equal to (A) Pressure head (B) Velocity head (C) Pressure head + velocity head (D) Pressure head - velocity head

Last Answer : Answer: Option C

A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy. (A) Coincides with (B) Lies below (C) Lies above (D) None of these

Description : A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy. (A) Coincides with (B) Lies below (C) Lies above (D) None of these

Last Answer : Answer: Option B

A body floating in a liquid is said to be in neutral equilibrium, if its metacentre (A) Coincides with its centre of gravity (B) Lies above its centre of gravityC) Lies below its centre of gravity (D) Lies between the centre of buoyancy and centre of gravity

Description : A body floating in a liquid is said to be in neutral equilibrium, if its metacentre (A) Coincides with its centre of gravity (B) Lies above its centre of gravity C) Lies below its centre of gravity (D) Lies between the centre of buoyancy and centre of gravity

Last Answer : Answer: Option A

The hydraulic gradient line lies over the centre line of the pipe by an amount equal to the (A) Pressure head(B) Velocity head (C) Pressure head + velocity head (D) Pressure head - velocity head

Description : The hydraulic gradient line lies over the centre line of the pipe by an amount equal to the (A) Pressure head (B) Velocity head (C) Pressure head + velocity head (D) Pressure head - velocity head

Last Answer : Answer: Option A

The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is (A) Less than 1 (B) Equal to 1 (C) Greater than 1 (D) Equal to zero

Description : The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is (A) Less than 1 (B) Equal to 1 (C) Greater than 1 (D) Equal to zero

Last Answer : Answer: Option C

If the critical shear stress of a channel is XC, then the average value of shear stress required to move the grain on the bank is (A) 0.5 XC (B) 0.75 TC (C) XC (D) 1.33 TC

Description : If the critical shear stress of a channel is XC, then the average value of shear stress required to move the grain on the bank is (A) 0.5 XC (B) 0.75 TC (C) XC (D) 1.33 TC

Last Answer : Answer: Option B

In alluvial channels carrying clear water, the ratio of maximum tractive shear stress on the slides and that on the channel beams approximately. a) 0.5 b) 1.76 c) 0.76 d) 1.5

Description : In alluvial channels carrying clear water, the ratio of maximum tractive shear stress on the slides and that on the channel beams approximately. a) 0.5 b) 1.76 c) 0.76 d) 1.5

Last Answer : c) 0.76

A rectangular log of wood is floating in water with a load of 100 N at its centre. The maximum shear force in the wooden log is (A) 50 N at each end (B) 50 N at the centre (C) 100 N at the centre (D) None of these

Description : A rectangular log of wood is floating in water with a load of 100 N at its centre. The maximum shear force in the wooden log is (A) 50 N at each end (B) 50 N at the centre (C) 100 N at the centre (D) None of these

Last Answer : (C) 100 N at the centre

0 Pick up the correct statement from the following: (A) The point through which the resultant of the shear stresses passes is known as shear centre(B) In the standard rolled channels, the shear centre is on the horizontal line passing through and away from the C.G. beyond web (C) In equal angles, the shear centre is on the horizontal plane and away from the C.G., outside of the leg projection (D) All the above

Description : 0 Pick up the correct statement from the following: (A) The point through which the resultant of the shear stresses passes is known as shear centre (B) In the standard rolled channels, the shear centre ... horizontal plane and away from the C.G., outside of the leg projection (D) All the above

Last Answer : (D) All the above

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 minimum centre to centre distance of a B.G. track in mid-section is ……….. mm (a) 4200 (b) 4265* (C) 4350 (d) 4000

Description : The minimum centre to centre distance of a B.G. track in mid-section is ……….. mm (a) 4200 (b) 4265* (C) 4350 (d) 4000

Last Answer : (b) 4265*

The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is (A) F/A (B) F/2A (C) 3F/2A (D) 2F/3A

Description : The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at  the neutral axis, is  (A) F/A (B) F/2A (C) 3F/2A (D) 2F/3A

Last Answer : (C) 3F/2A

Pick up the correct statement from the following: (A) The bending stress in a section is zero at its neutral axis and maximum at the outer fibres (B) The shear stress is zero at the outer fibres and maximum at the neutral axis (C) The bending stress at the outer fibres, is known as principal stress (D) All the above

Description : Pick up the correct statement from the following:  (A) The bending stress in a section is zero at its neutral axis and maximum at the outer fibres  (B) The shear stress is zero at the outer ... (C) The bending stress at the outer fibres, is known as principal stress  (D) All the above 

Last Answer : (D) All the above 

The ratio of maximum and average shear stresses on a rectangular section, is (A) 1 (B) 1.25 (C) 1.5 (D) 2.5

Description : The ratio of maximum and average shear stresses on a rectangular section, is  (A) 1  (B) 1.25  (C) 1.5  (D) 2.5 

Last Answer : (C) 1.5

If the shear force along a section of a beam is zero, the bending moment at the section is (A) Zero (B) Maximum (C) Minimum (D) Average of maximum-minimum

Description : If the shear force along a section of a beam is zero, the bending moment at the section is  (A) Zero  (B) Maximum  (C) Minimum  (D) Average of maximum-minimum 

Last Answer : (B) Maximum