Keeping loading same but increasing the length, normal stresses in a beam will  (a) Increase
(b) Decrease
(c) No change
(d) None

1 Answer

Answer :

(a) Increase

Related questions

Description : Keeping loading same but increasing the length, shear stresses in a beam will (a) Increase (b) Decrease (c) No change (d) None

Last Answer : (c) No change

Description : Keeping loading same but increasing the length, normal stresses in a long column will (a) Increase (b) Decrease (c) No change (d) None

Last Answer : (b) Decrease

Description : A sudden increase or decrease in shear force diagram between any two points 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) None of these

Last Answer : (b) Point loads between the two points

Description : Tensile and compressive stresses in a beam of symmetrical section are (a) σt = σc (b) σt > σc (c) σt < σc (d) None

Last Answer : (a) σt = σc

Description : Variation of bending stresses in a beam have (a) Parabolic variation (b) Linear variation (c) Cubical variation (d) None

Last Answer : (b) Linear variation

Description : Tensile and compressive stresses in a beam of un-symmetrical section are (a) σt = σc (b) σt =0 (c) σc =0 (d) None

Last Answer : (d) None

Description : Tensile and compressive stresses in a beam of symmetrical section are (a) σt = σc (b) σt > σc (c) σt < σc (d) None

Last Answer : (a) σt = σc

Description : Leaf spring for vehicles are nipped to (a) To vary the effective length of the spring (b) to increase the interleaf friction (c) Improve the load carrying capacity of spring (d) ensure that all leaves are uniformly stressed during loading

Last Answer : (d) ensure that all leaves are uniformly stressed during loading

Description : The vertical distance between the axis of the beam before and after loading at a point is called as _______ a. Deformation b. Deflection c. Slope d. None of above.

Last Answer : b. Deflection

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 : Corresponding to Fig. (3), the loading on the portion AD of the beam will be (a) Uniformly distributed load (b) Uniformly varying load (c) Point loads (d) Cannot be said

Last Answer : (a) Uniformly distributed load

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 : Ratio of diameters of two shafts joined in series is 2. If the two shafts have the same material and the same length the ratio of their shear stresses is a. 2 b. 4 c. 8 d. 16

Last Answer : c. 8

Description : Stresses in a thin cylindrical shell under internal pressure is independent of a. Diameter b. Thickness c. Length d. Diameter and thickness

Last Answer : c. Length

Description : Stiffness of the spring can be increased by a. increase the number of turns b. increase the free length c. decrease the number of turns d. decrease the spring wire diameter

Last Answer : c. decrease the number

Description : When a thin cylindrical shell is subjected to an internal pressure, there will be a) a decrease in diameter and length of the shell b) an increase in diameter and length of the shell c) an ... and decrease in length of the shell d) a decrease in diameter and increase in length of the shell

Last Answer : b) an increase in diameter and length of the shell

Description : In a simple bending theory, one of the assumption is that the material of the beam is isotropic. This assumption means that the a. normal stress remains constant in all directions b. ... c. elastic constants are same in all the directions d. elastic constants varies linearly in the material

Last Answer : c. elastic constants are same in all the directions

Description : What is the ratio of hoop stresses in a spherical vs cylindrical shell of same diameter, thickness and under same pressure? a. 4:1 b. 2:1 c. 1:2 d. 1:4

Last Answer : c. 1:2

Description : Nature of stresses produced in buckling and bending are (a) Same (b) Different (c) Only tensile (d) None

Last Answer : (a) Same

Description : A simply supported beam carries a uniformly distributed load over the whole span.The deflection at the centre is y.If the distributed load per unit length is doubled and also depth of beam is doubled ,then the deflection at the centre would be a.2y b.4y c.y/2 d.y/4.

Last Answer : d.y/4.

Description : Maximum slope in a cantilever beam with UDL w over the entire length will be a. wl3/9EI b. wl3/6EI c. wl3/3EI d. None.

Last Answer : b. wl3/6EI

Description : Maximum slope in a cantilever beam with UDL w over the entire length will be a. At the free end. b. At the fixed end. c. At the centre d. None.

Last Answer : a. At the free end.

Description : Maximum deflection in a cantilever beam with UDL w over the entire length will be a. At the free end. b. At the fixed end. c. At the centre d. None.

Last Answer : a. At the free end.

Description : Maximum deflection in a cantilever beam with UDL w over the entire length will be a.wL4/4EI b.wL4/12EI C.wl4/ 8EI d.None.

Last Answer : C.wl4/ 8EI

Description : A simply supported beam carries uniformly distributed load of 20 kN/m over the length of 5 m. If flexural rigidity is 30000 kN.m2, what is the maximum deflection in the beam? a. 5.4 mm b. 1.08 mm c. 6.2 mm d. 8.6 mm

Last Answer : a. 5.4 mm

Description : Shear force in a beam is (a) Parallel to the length (b) Perpendicular to the length (c) Neither parallel nor perpendicular to the length (d) None

Last Answer : (b) Perpendicular to the length

Description : Maximum bending moment in a cantilever beam having a UDL over entire length will be (a) wL2/2 (b) wL2/4 (c) wL2/8 (d) None

Last Answer : a) wL2/2

Description : Maximum bending moment in a S.S. beam having a UDL over entire length will be (a) wL2/2 (b) wL2/4 (c) wL2/8 (d) None

Last Answer : (c) wL2/8

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 : The shear force at the centre of a simply supported beam of span l carrying a uniformly distributed load of w per unit length over the whole span is (a) wl (b) wl/2 (c) wl/4 (d) Zero

Last Answer : (d) Zero

Description : A cantilever beam of length of 2m carries a U.D.L. of 150 N/m over its whole span. The maximum shear force in the beam will be (a) 150 N (b) 300 N (c) 150 N-m (d) 600 N-m

Last Answer : (b) 300 N

Description : In a mid point loaded fixed beam,the normal loads downwards tend to bend the beam a. wL2/ 12 b.wL2/ 4 c. wL2/ 8 d.wL2/ 24

Last Answer : c. wL2/ 8

Description : Shear stress in the beam acting on the cross section is (a) Normal to the cross section (b) Tangential to the cross section (c) Neither normal nor tangential (d) None

Last Answer : b) Tangential to the cross section

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 : What will happen if stresses induced due to surge in the spring exceeds the endurance limit stress of the spring. (a) Fatigue Failure (b) Fracture (c) None of the listed (d) Nipping

Last Answer : (a) Fatigue Failure

Description : Propagation of fatigue failure is always due to compressive stresses. (a) Due to bending (b) Due to tensile (c) Due to fatigue (d) None of the listed

Last Answer : (b) Due to tensile

Description : eaf springs are designed on the basis of (a) Maximum bending stresses (b) Maximum deflection (c) Maximum bending as well as maximum deflection (d) None

Last Answer : (c) Maximum bending as well as maximum deflection

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 : Lame's theory is associated with a) thick cylindrical shells b) thin cylindrical shells c) direct and bending stresses d) none of these

Last Answer : a) thick cylindrical shells

Description : Hoop shrinking in thick cylinders is done to achieve (a) Increased stresses (b) Decreased stresses (c ) Uniform stresses (d) None

Last Answer : Hoop shrinking technique is used to make the stresses on the cylinder walls evenly distributed around the circumference of the cylinder, which results in a uniform stress distribution. This is important for ... under load. It also makes sure that the cylinder can withstand the pressure inside it.

Description : The thick shell is made from laminations to get (a) Increased stresses (b) Decreased stresses (c) Uniform stresses (d) None

Last Answer : (c) Uniform stresses

Description : Which one is most important in a thin shell? a) d/t 10 c) Stresses are uniform d) None

Last Answer : c) Stresses are uniform

Description : Design of a thin shell under pressure is done on the basis of a. Radial stress b. Longitudinal stress c. Hoop stress d. All the three stresses

Last Answer : c. Hoop stress

Description : A vessel is said to be thin if a. Its wall has less thickness b. Stresses are uniform over the entire thickness c. Stresses vary at inner and at outer radius d. None of the above

Last Answer : b. Stresses are uniform over the entire thickness

Description : In shafts with keyways the allowable stresses are usually ------------ proportional to the twisting moment. a.25% b. 50% c. 75% d. 95%

Last Answer : c. 75%

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 : The expression EI d4y/dx4 at a section of a member represents a. Shearing force b. rate of loading c. bending moment d.slope.

Last Answer : b. rate of loading

Description : .The expression EI d3y/dx3 at a section of a member represents a.Shearing force b.rate of loading c.bending moment d.slope.

Last Answer : a.Shearing force

Description : The expression EI d2y/dx2 at a section of a member represents a. Shearing force b.rate of loading c.bending moment d.slope.

Last Answer : c.bending moment