In a continuous bending moment curve the point where it changes sign, is called (A) Point of inflexion (B) Point of contraflexure (C) Point of virtual hinge (D) All the above

In a continuous bending moment curve the point where it changes sign, is called
(A) Point of inflexion
(B) Point of contraflexure
(C) Point of virtual hinge
(D) All the above
by

1 Answer

Answer :

(D) All the above
by

Related questions

In a loaded beam, the point of contraflexure occurs at a section where (A) Bending moment is minimum (B) Bending moment is zero or changes sign (C) Bending moment is maximum (D) Shearing force is maximum

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Last Answer : Answer: Option B

Point of contra-flexure is also called (a) Point of maximum Shear force (b) Point of maximum Bending moment (c) Point of inflexion (d) Fixed end

Description : Point of contra-flexure is also called (a) Point of maximum Shear force (b) Point of maximum Bending moment (c) Point of inflexion (d) Fixed end

Last Answer : (c) Point of inflexion

Explain the difference between the points of inflexion and contraflexure.

Description : Explain the difference between the points of inflexion and contraflexure.

Last Answer : At points of inflexion in a loaded beam the bending moment is zero and at points of contraflexure in loaded beam the bending moment changes sign from increasing to decreasing.

The point of contraflexure is the point where (A) B.M. changes sign (B) B.M. is maximum (C) B.M. is minimum (D) S.F. is zero

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Last Answer : (A) B.M. changes sign 

In a three hinged arch, the bending moment will be zero (A) At right hinge only (B) At left hinge only (C) At both right and left hinges (D) At all the three hinges

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At the point of contraflexure (a) B.M is mimimum (b) B.M is maximum (c) B.M is either zero or changes sign (d) None of these

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The point of contraflexure occurs in (A) Cantilever beams only (B) Continuous beams only (C) Over hanging beams only (D) All types of beams

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The bending moment is maximum on a section where shearing force (A) Is maximum (B) Is minimum (C) Is equal (D) Changes sign

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Point of contra-flexure is a (a) Point where Shear force is maximum (b) Point where Bending moment is maximum (c) Point where Bending moment is zero (d) Point where Bending moment=0 but also changes sign from positive to negative

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When a slab is continuous over several spans, negative (i.e. hogging ) bending moment is induced over the (a) End supports (b) Intermediate supports (c) Both (a) & (b) (d) Non of the

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When the bending moment is parabolic curve between two points, it indicates that there is (a) No loading between the two points (b) Point loads between the two points (c) U.D.L. between the two points (d) Uniformly varying load between the two points

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The bending moment diagram for a cantilever with point load, at the free end will be (a) A triangle with max. height under free end (b) A triangle with max. height under fixed end (c) A parabolic curve (d) None of these

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The moment capacity of section at plastic hinge equals a) Yield moment b) Zero c) Fully plastic moment d) Twice the yield moment

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In continuous beam if it is end is fixed supported the bending moment will be a. zero b. neglected c. infinite

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Last Answer : a. zero

In continuous beam if it is end simply supported the bending moment will be a. zero b. neglected c. infinite

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Last Answer : a. zero

In continuous beam, the intermediate beams are subjected to a. some bending moment b. no bending moment c. no slope d.no deflection

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When sinking is accounted in a continuous beam the bending moment is a. modified b.same c.zero d.infinite

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In comparison with a simply supported beam of same span and load , a continuous beam has a.less maximum bending moment b. same bending moment c. higher maximum bending moment d. twice the bending moment

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Last Answer : a.less maximum bending moment

Inflexion point is found on

Description : Inflexion point is found on

Last Answer : Ans. Irrational zone (Stage – I)

If the positive and negative shear force diagram areas are not equal, it can be concluded that a.shear force diagram has been wrongly drawn b.there is at least one couple acting on the beam c.107 dynes d.there are at least two maxima for bending moment e.bending moment does not change sign

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A cantilever carrying a uniformly distributed load W over its full length is propped at its free end such that it is at the level of the fixed end. The bending moment will be zero at its free end also at (A) Midpoint of the cantilever (B) Fixed point of the cantilever (C) 1/4th length from free end (D) 3/4th length from free end

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In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at (A) Less loaded column (B) More loaded column (C) A point of the maximum shear force (D) A point of zero shear force

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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

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For a fixed beam with UDL,point of contraflexure is a.0.211L or 0.789L b. 0.365 L or 0.635 L c. 0.177 L or 0.823 L d.0.477 L or 0.523 L

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.For a fixed beam with midpoint load point of contraflexure occurs at a. L/4 b. L/2 c. L/6 d. L/8

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In a simply supported beam carrying a uniformly distributed load over the left half span, the point of contraflexure will occur in (a) Left half span of the beam (b) Right half span of the beam. (c) Quarter points of the beam (d) Does not exist

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The Point of contraflexure occurs in case of (a) Cantilever beams (b) Simply supported beams (c) Over hanging beams (d) All types of beams

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A recording type rain gauge (A) Produces a mass curve of rain fall (B) Records the cumulative rain (C) Is sometimes called integrating rain gauge or continuous rain gauge (D) All the above

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Select the incorrect statement from the following In eccentrically loaded columns, [ A ] The tensile strength of concrete is ignored [ B ] Design stress – strain curve for steel in compression is the same as in tension [ C ] The strain at different points in the section will be same [ D ] Plane section remain plane even after bending

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Pick up the correct statement from the following: (A) Continuous grading is not necessary for obtaining a minimum of air voids (B) The omission of a certain size of aggregate is shown by a straight horizontal line on the grading curve (C) The omission of a certain size of aggregate in concrete increases the workability but also increases the liability to segregation (D) All the above

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A diagram which shows the variations of the axial load for all sections of the span of a beam, is called (A) Bending moment diagram (B) Shear force diagram (C) Thrust diagram (D) Stress diagram

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A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is (A) M/T (B) T/M (C) 2M/T (D) 2T/M

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If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of elasticity stress and the depth of the neutral axis at section, then (A) M/I = R/E = F/Y (B) I/M = R/E = F/Y (C) M/I = E/R = E/Y (D) M/I = E/R = Y/F

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The maximum bending moment for a simply supported beam with a uniformly distributed load w/unit length, is (A) WI/2 (B) WI²/4 (C) WI²/8 (D) WI²/12

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A cantilever of length is subjected to a bending moment at its free end. If EI is the flexural rigidity of the section, the deflection of the free end, is (A) ML/EI (B) ML/2EI (C) ML²/2EI (D) ML²/3EI

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Last Answer : (D) ML²/3EI

A close coil helical spring when subjected to a moment M having its axis along the axis of the helix (A) It is subjected to pure bending (B) Its mean diameter will decrease (C) Its number of coils will increase (D) All the above

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Last Answer : (A) It is subjected to pure bending 

shaft subjected to a bending moment M and a torque T, experiences (A) Maximum bending stress = 32M d 3 (B) Maximum shear stress = 16 T d 3 (C) Both (a) and (b) (D) Neither (a) nor (b)

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Last Answer : (C) Both (a) and (b) 

Pick up the correct statement from the following: (A) The moment of inertia is calculated about the axis about which bending takes place (B) If tensile stress is less than axial stress, the section experiences compressive stress (C) If tensile stress is equal to axial stress, the section experiences compressive stress (D) All the above

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Last Answer : (D) All the above 

A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be (A) 8 kN.m (B) 15 kN.m (C) 30 kN.m (D) 60 kN.m

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In the slope deflection equations, the deformations are considered to be caused by (i) Bending moment (ii) Shear force (iii) Axial force The correct answer is (A) Only (i) (B) (i) and (ii) (C) (ii) and (iii) (D) (i), (ii) and (iii)

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Last Answer : (A) Only (i)

When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when (A) The centre of gravity of the load system is midway between the centre of span and wheel load under consideration (B) The centre of span is midway between the centre of gravity of the load system and the wheel load under consideration (C) The wheel load under consideration is midway between the centre of span and the centre of gravity of the load system (D) None of the above

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Last Answer : (B) The centre of span is midway between the centre of gravity of the load system and the wheel load under consideration

The maximum bending moment due to a train of wheel loads on a simply supported girder (A) Always occurs at centre of span (B) Always occurs under a wheel load (C) Never occurs under a wheel load (D) None of the above

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Last Answer : (B) Always occurs under a wheel load

Bending moment at any section in a conjugate beam gives in the actual beam (A) Slope (B) Curvature (C) Deflection (D) Bending moment

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Last Answer : (C) Deflection

When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that (A) The head of the load reaches the section (B) The tail of the load reaches the section (C) The load position should be such that the section divides it equally on both sides (D) The load position should be such that the section divides the load in the same ratio as it divides the span

Description : When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that (A) The head of the load ... position should be such that the section divides the load in the same ratio as it divides the span

Last Answer : (D) The load position should be such that the section divides the load in the same ratio as it divides the span

When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies (A) Less than the left half span (B) Whole of left half span (C) More than the left half span (D) Whole span

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Last Answer : (D) Whole span

A simply supported beam carries two equal concentrated loads W at distances L/3 from either support. The maximum bending moment (A) WL/3 (B) WL/4 (C) 5WL/4 (D) 3WL/12

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Last Answer : (A) WL/3

Maximum deflection of a cantilever due to pure bending moment M at its free end, is (A) ML²/3EI (B) ML²/4EI (C) ML²/6EI (D) ML²/2EI

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Last Answer : (D) ML²/2EI