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 : 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
Last Answer : Answer: Option B
Description : is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is (A) f = (P/A) - (Z/M) (B) f = (A/P) - (M/Z) (C) f = (P/A) - (M/Z) (D) f = (P/A) - (M/6Z)
Last Answer : Answer: Option C
Description : The slope of shear force line at any section of the beam is also called (a) Bending moment at that section (b) Rate of loading at that section (c) Maximum Shear force (d) Maximum bending moment
Last Answer : (b) Rate of loading at that section
Description : At a point in a simply supported or overhanging beam where Shear force changes sign and = 0, Bending moment is (a) Maximum (b) Zero (c) Either increasing or decreasing (d) Infinity
Last Answer : (a) Maximum
Description : A beam is designed on the basis of a. Maximum bending moment b. Minimum shear force. c.Maximum bending moment as well as for maximum shear force d. None.
Last Answer : c.Maximum bending moment as well as for maximum shear force
Description : is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is (A) f = (P/A) + (Z/M) ... ) + (M/Z) (C) f = (P/A) + (M/Z) (D) f = (P/A) + (M/6Z)
Description : 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
Last Answer : Answer: Option D
Description : A beam is said to be of uniform strength, if (A) B.M. is same throughout the beam (B) Shear stress is same throughout the beam (C) Deflection is same throughout the beam (D) Bending stress is same at every section along its longitudinal axis
Last Answer : (D) Bending stress is same at every section along its longitudinal axis
Description : The graphical representation of variation of axial load on y axis and position of cross section along x axis is called as _____ (a) Bending moment diagram (b) Shear force diagram (c) Stress-strain diagram (d) Trust diagram
Last Answer : (d) Trust diagram
Description : The amount of reinforcement for main bars in a slab, is based upon (A) Minimum bending moment (B) Maximum bending moment (C) Maximum shear force (D) Minimum shear force
Description : The amount of reinforcement for main bars in a slab, is based upon (a) Maximum bending moment (b) Minimum bending moment (c) Maximum shear force (d) Minimum shear force
Last Answer : (a) Maximum bending moment
Description : 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
Description : In a beam the local bond stress Sb, is equal to (A) Shear force/(Leaver arm Total perimeter of reinforcement) (B) Total perimeter of reinforcement/(Leaver arm Shear force) (C) ... force Total perimeter of reinforcement) (D) Leaver arm/(Bending moment Total perimeter of reinforcement)
Last Answer : Answer: Option A
Description : For a certain set of external loads, concordant profile in a prestressed beam represents to some scale the (a) Influence line diagram (b) Shear force diagram (c) Bending moment diagram (d) Williot-Mohr diagram
Last Answer : (c) Bending moment diagram
Description : The bending moment is maximum on a section where shearing force (A) Is maximum (B) Is minimum (C) Is equal (D) Changes sign
Last Answer : (D) Changes sign
Description : If Z and I are the section modulus and moment of inertia of the section, the shear force F and bending moment M at a section are related by (A) F = My/I (B) F = M/Z (C) F = dM/dx (D) F Mdx
Last Answer : (C) F = dM/dx
Description : If a three hinged parabolic arch carries a uniformly distributed load on its entire span, every section of the arch resists. (A) Compressive force (B) Tensile force (C) Shear force (D) Bending moment
Last Answer : (A) Compressive force
Description : In case of a cantilever beam, bending moment at the fixed end will be (a) Maximum (b) Minimum (c) Zero (d) None
Description : In case of a cantilever beam, bending moment at the free end will be (a) Maximum (b) Minimum (c) Zero (d) None
Last Answer : c) Zero
Description : At the supports of a simply supported beam, bending moment will be (a) Maximum (b) Minimum (c) Zero (d) None
Last Answer : (c) Zero
Description : A beam of uniform strength has a. same cross-section throughout the beam b. same bending stress at every section c. same bending moment at every section d. same shear stress at every section
Last Answer : b. same bending stress at every section
Description : 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
Last Answer : (d) Point where Bending moment=0 but also changes sign from positive to negative
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
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
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
Description : 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
Last Answer : b. there is at least one couple acting on the beam
Description : Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam (A) Are curtailed if not required to resist the bending moment (B) Are bent up at suitable ... to serve as shear reinforcement (D) Are maintained at bottom to provide at least local bond stress
Description : A beam curved in plan is designed for (A) Bending moment and shear (B) Bending moment and torsion (C) Shear and torsion (D) Bending moment, shear and torsion
Description : State the position of maximum shear stress and bending stress in S/S rectangular beam section carrying udl.
Last Answer : i. Maximum shear stress developed at the neutral axis of the rectangular section at support of simply supported beam. ii. Maximum bending stress developed at the top and bottom fibre of the rectangular section at mid span of simply supported beam.
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
Description : In case of a cantilever beam, shear force at the fixed end will be (a) Maximum (b) Minimum (c) Zero (d) None
Description : The concavity produced on the beam section about the centre line when downward force acts on it is called as (a) Hogging or positive bending moment (b) Hogging or negative bending moment (c) Sagging or positive bending moment (d) Sagging or negative bending moment
Last Answer : (b) Hogging or negative bending moment
Description : The ratio of maximum bending stress to maximum shear stress on the cross section when a shaft is simultaneously subjected to a torque T and bending moment M, a. T/M b. M/T c. 2T/M d. 2M/T
Last Answer : d. 2M/T
Description : In a R.C section under flexure, the assumption that a plane section before bending remains plane after bending leads to (a) Strain distribution being linear across the depth (b) ... strain distribution being linear across the depth (d) Shear stress distribution being uniform along the depth
Last Answer : (a) Strain distribution being linear across the depth
Description : Bending moment at any section in a conjugate beam gives in the actual beam (A) Slope (B) Curvature (C) Deflection (D) Bending moment
Last Answer : (C) Deflection
Description : If a constant section beam is subjected to a uniform bending moment throughout, its length bends to (A) A circular arc (B) A parabolic arc (C) A catenary (D) None of these
Last Answer : (A) A circular arc
Description : In a ring beam subjected to uniformly distributed load (i) Shear force at mid span is zero (ii) Shear force at mid span is maximum (iii) Torsion at mid span is zero (iv) Torsion at mid span is maximum The correct answer ... and (iii) (B) (i) and (iv) (C) (ii) and (iii) (D) (ii) and (iv)
Last Answer : Option A
Description : What is the shear stress acting along the neutral axis of triangular beam section, with base 60 mm and height 150 mm, when shear force of 30 kN acts? a. 15.36 N/mm2 b. 10.6 N/mm2 c. 8.88 N/mm2 d. Insufficient data
Last Answer : c. 8.88 N/mm2
Description : If is the shear force at a section of an I-joist, having web depth and moment of inertia about its neutral axis, the difference between the maximum and mean shear stresses in the web is, (A) Sd²/8I (B) Sd²/12I (C) Sd²/16I (D) Sd²/24I
Last Answer : (D) Sd²/24I
Description : The bending moment at the fixed end of a cantilever beam is (a) Maximum (b) Minimum (c) Wl/2 (d) Wl
Description : A hollow prismatic beam of circular section is subjected to a torsional moment. The maximum shear stress occurs at (a) inner wall of cross section (b) middle of thickness (c) outer surface of shaft (d) none of these
Last Answer : (c) outer surface of shaft
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
Description : In a cantilever subjected to a combination of concentrated load, uniformly distributed load and uniformly varying load, Maximum bending moment is (a) Where shear force=0 (b) At the free end (c) At the fixed end (d) At the mid-point
Last Answer : (c) At the fixed end
Description : 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)
Last Answer : (A) Only (i)
Description : An arch may be subjected to (A) Shear and axial force (B) Bending moment and shear force (C) Bending moment and axial force (D) Thrust, shear force and bending moment
Last Answer : (D) Thrust, shear force and bending moment
Description : Pick up the correct statement from the following: (A) The rate of change of bending moment is equal to rate of shear force (B) The rate of change of shear force is equal to rate of loading (C) Neither (a) nor (b) (D) Both (a) and (b
Last Answer : (D) Both (a) and (b
Description : A construction joint is provided where (A) Bending moment is small (B) Shear force is small (C) The member is supported by other member (D) All the above
Description : In prestressed concrete members, the shear force depends upon (a) Distributed load (b) Torsion (c) Concentrated load (d) Variation in net bending moment
Last Answer : (d) Variation in net bending moment
Description : The purlins in roof trusses are placed at the panel points essentially to avoid (a) Axial force in rafter (b) Shear force in rafter (c ) Deflection in rafter (d) Bending moment in rafter
Last Answer : (d) Bending moment in rafter
Description : The deep beams are designed for (a) Shear force only (b) Bending moment only (c) Both S.F & B.M (d) Bearing
Last Answer : (b) Bending moment only