In axial thrust diagram, at which point bending moment is zero?
(a) Point of contra-flexure
(b) Point of inflection
(c) Both a. and b.
(d) None of the above

1 Answer

Answer :

(c) Both a. and b.

Related questions

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 : 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 : Which of the following loading is considered for the design of axles ? (a) Bending moment only (b) Twisting moment only (c) Combined bending moment and torsion (d) Combined action of bending moment, twisting moment and axial thrust

Last Answer : (a) Bending moment only

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 : 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

Last Answer : Answer: Option C

Description : A shaft a. Is always subjected to pure torsion b. Combination of M & T but no end thrust c. Combination of torque & end thrust but no bending moment d. May be subjected to a combination of M, T and end thrust

Last Answer : d. May be subjected to a combination of M, T and end thrust

Description : In a cantilever carrying a uniformly varying load starting from zero at the free end, the Bending moment diagram is (a) A horizontal line parallel to x-axis (b) A line inclined to x-axis (c) Follows a parabolic law (d) Follows a cubic law

Last Answer : (d) Follows a cubic law

Description : Equivalent bending moment in a shaft subjected to axial load P, torque T and bending moment M is (a) Meq = 0.5 [M + (M2 + T2)0.5]0.5 (b) Meq = 0.5 [M + (M2 + T2)0.5] (c) Meq = ( M2 + T2)0.5 (d) None

Last Answer : (b) Meq = 0.5 [M + (M2 + T2)0.5]

Description : Equivalent torque in a shaft subjected to axial load P, torque T and bending moment M is (a) Teq = (Pa2 + M2 + T2) (b) Teq = (Pa2 + M2 + T2)0.5 (c)Teq = ( M2 + T2)0.5 (d) None

Last Answer : c)Teq = ( M2 + T2)0.5

Description : In a mid point loaded fixed beam,the free bending moment diagram is a a.square b.rectangle c.triangle d.trapezium

Last Answer : c.triangle

Description : In a mid point loaded fixed beam,the fixed bending moment diagram is a a.square b.rectangle c.triangle d.trapezium

Last Answer : b.rectangle

Description : In an off centre point loaded fixed beam the free bending moment diagram is a a.square b.rectangle c.triangle d.trapezium

Last Answer : c.triangle

Description : A sudden jump anywhere on the Bending moment diagram of a beam is caused by (a) Couple acting at that point (b) Couple acting at some other point (c) Concentrated load at the point (d) Uniformly distributed load or Uniformly varying load on the beam

Last Answer : (a) Couple acting at that point

Description : 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

Last Answer : (b) A triangle with max. height under fixed end

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 : Define point of contra-flexure of a loaded beam with sketch.

Last Answer : Point of Contra-flexure: It is the point in bending moment diagram where bending moment changes its sign from positive to negative and vice versa. At that point bending moment is equal to zero. This point is called as point of contra-flexure.

Description : In an UDL fixed beam free moment diagram gives a bending moment of a. Convex up b. Convex down c. Concave up d.Concave down

Last Answer : b. Convex down

Description : In an off centrepoint loaded fixed beam the fixed bending moment diagram is a a.square b.rectangle c.triangle d.trapezium

Last Answer : d.trapezium

Description : For any part of a beam subjected to uniformly distributed load, bending moment diagram is (a) Horizontal straight line (b) Vertical straight line (c) Line inclined to x-axis (d) Parabola

Last Answer : d) Parabola

Description : For any part of a beam between two concentrated load, Bending moment diagram is a (a) Horizontal straight line (b) Vertical straight line (c) Line inclined to x-axis (d) Parabola

Last Answer : (c) Line inclined to x-axis

Description : The bending moment diagram for a cantilever with U.D.L. over the whole span will be (a) Triangle (b) Rectangle (c) Parabola (d) Ellipse

Last Answer : (c) Parabola

Description : The Effective length of a column is defined as the [ A ] length between the fixed joints [ B ] length between the points of contra flexure [ C ] unsupported length of the column [ D ] Both (a) and (c)

Last Answer : [ B ] length between the points of contra flexure

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

Last Answer : a. zero

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

Last Answer : a. zero

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

Last Answer : a. modified

Description : In case of a cantilever beam, bending moment at the fixed end will be (a) Maximum (b) Minimum (c) Zero (d) None

Last Answer : (a) Maximum

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 : In a simply supported beam, bending moment at the end (a) Is always zero if it does not carry couple at the end (b) Is zero, if the beam has uniformly distributed load only (c) Is zero if the beam has concentrated loads only (d) May or may not be zero

Last Answer : (a) Is always zero if it does not carry couple at the end

Description : Bending moment at supports in case of simply supported beam is always (a) Zero (b) Positive (c) Negative (d) Depends upon loading

Last Answer : (a) Zero

Description : Wahl’s stress concentration factor is used in close coiled springs under axial load to account for (a) Shear effect (b) Bending effect (c) Compression effect (d) none

Last Answer : (b) Bending effect

Description : A open helical spring under axial torque is designed on the basis of (a) Shear (b) Compression (c) Bending (d) None

Last Answer : d) None

Description : A closed helical spring under axial torque is designed on the basis of (a) Shear (b) Compression (c) Bending (d) None

Last Answer : (c) Bending

Description : A closed helical spring under axial load is designed on the basis of (a) Shear (b) Compression (c) Bending (d) None

Last Answer : (a) Shear

Description : A close coiled spring under axial load produces (a) Bending stresses (b) Shear stresses (c) Tensile stresses (d) None

Last Answer : (b) Shear stresses

Description : When a close-coiled helical spring is subjected to an axial load, it is said to be under. (a) Bending (b) Shear (c) Torsion (d) Crushing

Last Answer : (c) Torsion

Description : Bending of beam occurs under (a) Axial load (b) Transverse load (c) Direct load (d) None

Last Answer : (b) Transverse load

Description : A concentrated load P acts on a simply supported beam of span L at a distance L/3 from the left support. The bending moment at the point of application of the load is given by (a) PL/3 (b) 2PL/3 (c) PL/9 (d) 2PL/9

Last Answer : (d) 2PL/9

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 a simply supported beam subjected to uniformly distributed load (w) over the entire length (l), total load=W, maximum Bending moment is (a) Wl/8 or wl2/8 at the mid-point (b) Wl/8 or wl2/8 at the end (c) Wl/4 or wl2/4 (d) Wl/2

Last Answer : (a) Wl/8 or wl2/8 at the mid-point

Description : 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

Last Answer : (c) U.D.L. between the two points

Description : A beam is a structural member which is subjected to (a) Axial tension or compression (b) Transverse loads and couples (c) Twisting moment (d) No load, but its axis should be horizontal and x-section rectangular or circular

Last Answer : b) Transverse loads and couples

Description : Which of the following act on shafts? a) Torsional moment b) Bending Moment c) Both torsional and bending d) None of the mentioned

Last Answer : c) Both torsional and bending

Description : What is the maximum shear stress induced in a solid shaft of 50 mm diameter which is subjected to both bending moment and torque of 300 kN.mm and 200 kN.mm respectively? a. 9.11 N/mm2 b. 14.69 N/mm2 c. 16.22 N/mm2 d. 20.98 N/mm2

Last Answer : b. 14.69 N/mm2

Description : What is the maximum principle stress induced in a solid shaft of 40 mm diameter which is subjected to both bending moment and torque of 300 kN.mm and 150 kN.mm respectively? a. 21.69 N/mm2 b. 28.1 N/mm2 c. 50.57 N/mm2 d. 52.32 N/mm2

Last Answer : c. 50.57 N/mm2

Description : A member subjected to couple produces rotational motion about its longitudinal axis called as ________ a. torsion b. twisting moment c. both a. and b. d. bending moment

Last Answer : c. both a. and b.

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

Last Answer : a. some bending moment

Description : 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

Last Answer : a.less maximum bending moment

Description : For the same span and loads fixed beam in comparison with simply supported beams has a. lesser value of maximum bending moment b. more value of maximum bending moment c.twice the value of maximum bending moment d.same value of maximum bending moment

Last Answer : a. lesser value of maximum bending moment