Posted On:February 2, 2019, Posted By: Latest Interview Questions,
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Dear Readers, Welcome to __ Strength of Materials Objective Questions__ have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of

a) longitudinal stress to longitudinal strain

b) shear stress to shear strain

c) stress to strain

d) stress to volumetric strain

Ans: b

a) -1

b) -0.5

c) 0.5

d) zero

Ans: d

a) area of cross-section

b) type of loading

c) type of material

d) all of the above

Ans: c

a) 2

b) 3

c) 9

d) 1

Ans: a

a) 0.5

b) 1

c) 2

d) 4

Ans: c

a) decrease

b) remain unchanged

c) increase to two times

d) increase to four times

Ans: c

a) E = 2K(l-2u.)

b) E = 3K(l + u)

c) E = 3K(l-2u)

d) E = 2K(l + u)

Ans: c

a) - 1 and 0.5

b) -land-0.5

c) 1 and - 0.5

d) 0 and 0.5

Ans: a

a) that of a prismatic bar of same length

b) one half that of a prismatic bar of same length

c) one third that of a prismatic bar of same length

d) one fourth that of a prismatic bar of same length

Ans: c

a) homogeneous

b) isotropic

c) elastic

d) orthotropic

Ans: b

a) 7:4

b) 4:7

c) 4:17

d) 16 :49

Ans: a

a) (l + e)(l-u)2V

b) (l-e)2(l + ue)V

c) (l + e)(l-ne)2V

d) (l-ue)3V

Ans: c

a) tension

b) compression

c) shear

d) torsion

Ans: b

a) overall length - weld size

b) overall length - throat thickness

c) overall length - 2 x weld size

d) overall length - 2 x throat thickness

Ans: c

a) 0.707 x throat thickness

b) 0.414 x throat thickness

c) 2.0 x throat thickness

d) throat thickness

Ans: b

a) 2 x size of weld

b) 4 x size of weld

c) 6 x size of weld

d) 10 x size of weld

Ans: b

a) smaller leg length

b) longer leg length

c) throat thickness

d) average of smaller and longer leg lengths

Ans: a

a) throat of the fillet

b) smaller side

c) side parallel to force

d) side perpendicular to force

Ans: a

a) 0.707 x size of weld

b) 1.414 x size of weld

c) a function of the angle between fusion faces

d) equal to the side of the fillet

Ans: c

a) 6t

b) 6Vt

c) 1.9-y/t

d) 1.5 t+ 4

Ans: b

a) 10

b) 12

c) 15

d) 20

Ans: c

a) 1

b) 2

c) 3

d) 4

Ans: b

a) p,/2

b) p2/2

c) (p,-p2)/2

d) (p, + p2)/2

Ans: d

a) 0°

b) 45°

c) tan"1 (1/2)

d) tan"1 (2)

Ans: b

a) P/A and 45°

b) P/2Aand45°

c) P/2A and 60°

d) P/A and 30°

Ans: b

a) constant

b) variable

c) dependent on the planes

d) none of the above

Ans: a

a) p

b) p/2

c) zero

d) none of the above

Ans: a

a) zero

b) maximum

c) minimum

d) none of the above

Ans: a

a) tension in one direction and equal compression in perpendicular direc-tion

b) equal tension in two directions at right angles

c) equal compression in two directions at right angles

d) none of the above

Ans: a

a) maximum principal stress

b) maximum shear stress

c) maximum strain energy

d) maximum shear strain energy

Ans: a

a) deflection is zero

b) shear force is maximum

c) shear force is minimum

d) shear force changes sign

Ans: d

a) shear force

b) deflection

c) slope

d) rate of loading

Ans: d

a) shear force diagram

b) bending moment diagram

c) thrust diagram

d) influence line diagram

Ans: a

a) load curve between these two sections

b) shear curve between these two sections

c) bending moment curve between these two sections

d) load curve between these two sections plus concentrated loads applied between the sections

Ans: d

a) linear

b) parabolic

c) cubic

d) constant

Ans: c

a) at a support

b) always at the midspan

c) under the load only

d) none of the above

Ans: a

a) between A and C

b) between C and B

c) one between A and C and other between C and B

d) nowhere in the beam

Ans: a

a) 0.5

b) 1.0

c) 1.5

d) 2.0

Ans: d

a) 0.2771

b) 0.403 1

c) 0.5861

d) 0.7071

Ans: c

a) 0.2071

b) 0.2111

c) 0.2771

d) 0.251

Ans: b

a) 1/V3 from left end

b) 1/3 from left end

c) 1/V3 from right end

d) 1/3 from right end

Ans: a

a) constant bending moment and zero shear force

b) constant shear force and zero bending moment

c) constant bending moment and constant shear force

d) none of the above

Ans: a

a) 1/2

b) 1/V2

c) 1/3

d) 2/3

Ans: b

a) moment of inertia

b) section modulus

c) tensile strength

d) area of cross-section

Ans: b

a) 1.118

b) 1.342

c) 1.000

d) 0.793

Ans: a

a) 150 mm

b) 350 mm

c) 500 mm

d) 550 mm

Ans: d

a) 1 N/mm2

b) 1.125 N/mm2

c) 1.33 N/mm2

d) 1.5 N/mm2

Ans: d

a) 1 N/mm2

b) 1.125 N/mm2

c) 2 N/mm2

d) 2.25 N/mm2

Ans: b

a) catenary

b) cubic parabola

c) quadratic parabola

d) arc of a circle

Ans: d

a) at the neutral axis

b) at the base

c) above the neutral axis

d) below the neutral axis

Ans: c

a) bending moment

b) bending stress

c) deflection

d) stiffness

Ans: b

a) be parallel to one of the principal axes

b) pass through shear centre of section

c) pass through neutral axis of the section

d) pass through centre of gravity of the section

Ans: b

a) circular section is more economical

b) square section is more economical

c) both sections are equally strong

d) both sections are equally stiff

Ans: b

a) 0.01 d

b) 0.1 d

c) 0.011 d

d) 0.11 d

Ans: c

a) 0 152 1

b) 0.207 1

c) 0.252 1

d) 0.277 1

Ans: a

a) deflection at D in the first case will be equal to the deflection at C in the second case

b) deflection at C in the first case is equal to the deflection at D in the second case

c) deflection at D in the first case will always be smaller than the deflection at C in the second case

d) deflection at D in the first case will always be greater than the deflection at C in the second case

Ans: a

a) 0.8 m

b) 1m

c) 1.2 m

d) 1.5m

Ans: b

a) 0.01 radian

b) 0.015 radian

c) 0.02 radian

d) none of the above

Ans: c

a) 1/2

b) 3/11

c) 5/24

d) 7/41

Ans: d

a) two times

b) four times

c) eight times

d) sixteen times

Ans: c

a) 50%

b) 25%

c) 12.5%

d) 6.25%

Ans: d

a) it is more economical

b) it gives uniform strength

c) spring becomes flat when it is subjec-ted to design load

d) none of the above

Ans: c

a) ends and loaded at centre

b) centre and loaded at ends

c) ends and loaded anywhere

d) centre and loaded anywhere

Ans: b

a) direct stress

b) bending stress

c) shear stress

d) none of the above

Ans: b

a) strength is more

b) strength is less

c) stiffness is less

d) stiffness is more

Ans: c

a) length of column only

b) least lateral dimension only

c) both length and least lateral dimension

d) none of the above

Ans: c

a) P/16

b) P/4

c) P/2

d) 4P

Ans: a

a) greater than 80

b) less than 80

c) greater than 180

d) greater than 120

Ans: b

a) both ends are hinged

b) both ends are fixed

c) one end is fixed and other end is hinged

d) one end is fixed and other end is free

Ans: b

a) 10 m

b) 20m

c) 28.28m

d) 40m

Ans: d

a) lies between 0 and 140

b) lies between 0 and 100

c) is less than 80

d) has any value

Ans: d

a) 31.25

b) 62.5

c) 100

d) 125

Ans: d

a) to reduce bending moment throughout

b) to increase bending moment throughout

c) to increase shear force

d) to decrease shear force

Ans: a

a) nornal thrust and shear force

b) shear force and bending moment

c) normal thrust and bending moment

d) normal thrust, shear force and bending moment

Ans: d

a) bending moment

b) shear force

c) normal thrust

d) deflection

Ans: a

a) direct compressive

b) direct tensile

c) shear

d) none of the above

Ans: d

a) at least three points

b) at least two points

c) all points irrespective of loading

d) nowhere

Ans: a

a) normal thrust only

b) normal thrust and shear force

c) normal thrust and bending moment

d) normal thrust, shear force and bending moment

Ans: a

a) statically indeterminate by one degree

b) statically indeterminate by two degrees

c) statically determinate

d) unstable structure

Ans: c

a) normal thrust only

b) shear force only

c) bending moment only

d) normal thrust and shear force

Ans: a

a) circular

b) parabolic

c) elliptical

d) none of the above

Ans: b

a) m = 2j - 3

b) m = 3j-6

c) m > 2j - 3

d) m > 3j - 6

Ans: a

a) triangle

b) rectangle

c) square

d) hexagon

Ans: a

a) one

b) two

c) three

d) four

Ans: b

a) 20 mm

b) 31.25 mm

c) 37.5 mm

d) 42.5 mm

Ans: d

a) limit of proportionality

b) elastic limit

c) plastic limit

d) none of the above

Ans: b

a) 0.5 x stress x volume

b) 0.5 x strain x volume

c) 0.5 x stress x strain x volume

d) 0.5 x stress x strain

Ans: c

a) 10 N.m

b) 25 N.m

c) 50 N.m

d) 100N.m

Ans: c

a) 50 N/mm2

b) 100 N/mm2

c) 200 N/mm2

d) 400 N/mm2

Ans: c

a) 1/4 time

b) 1/8 time

c) 4 times

d) 8 times

Ans: d

a) cantilever beam

b) simply supported beam

c) fixed beam

d) continuous beam

Ans: b

a) hardness

b) toughness

c) strength

d) creep

Ans: b

a) creep

b) fatigue

c) resilience

d) plasticity

Ans:

a) fatigue

b) creep

c) plasticity

d) resilience

Ans: b

a) tolerance limit

b) elastic limit

c) proportional limit

d) endurance limit

Ans: b

a) increase definitely

b) decrease definitely

c) be difficult to predict

d) increase or decrease depending upon the radius of the segmental arch

Ans: b

a) maximum shear stress theory

b) maximum principal stress theory

c) maximum principal strain theory

d) shear strain energy theory

Ans: a

a) 1000 kg/cm2

b) 2000 kg/cm2

c) 2500 kg/cm2

d) 500 kg/cm2

Ans: d

a) Mohr's theory

b) Rankine's theory

c) Maximum strain theory

d) Maximum shear energy theory

Ans: b