ADVANCE ENGINEERING CLASSES

Central India’s leading institute for

SOM all Questions Of SSC JE 2016 Exam

(Held Between 1st March to 4th March 2017 )

Q 1 The Mohr’s straight theory is based on the following fact.

(a) Material fails essentially by shear

(b) Ultimate strength of the material is determined by the stress in the plane of slip

(c) Failure criterion is independent of the intermediate principal stress

(d) all options are correct

ANS D

Q 2 The ratio of lateral strain to axial strain of a homogeneous material is known

(a) Yield ratio

(b) Hookie’s ratio

(c) Poisson’s ratio

(d) Plastic ratio

ANS C

Q 3 The normal and tangential components of stress on an inclined plane through 80 to the direction of the force
will be equal if 0 is

(a) 450

(b) 300

(c) 600

(d) 900

ANS A

Q 4 The locus of the end point of the resultant of the normal and tangential component of the stress on an inclined

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plane is

(a) circle

(b) parabola

(c) ellipse

(d) straight line

ANS B

Q 6 Principal planes are subjected to

(a) normal stresses only

(b) tangential stresses only

(c) normal stresses as well as tangential stresses

(d) none of these

ANS A

Q 7 The strain energy due to volumetric strain

(a) is directly proportional to the volume

(b) is directly proportional to the square of exerted pressure

(c) is inversely proportional to Bulk modulus

(d) all options are correct

ANS D

Q 8 A simply supported beam carries a varying load from zero at one end and what the other end. If the length of
the beam is a , the shear force will be zero at a distance x from least loaded point where x is

(a) a/2

(b) a/3

(c) a/ 3

(d) (a 3 )/2

ANS C

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Q 9 For a strongest rectangular beam cut from a circular log, the ratio of the width and depth is

(a) 0.303

(b) 0.404

(c) 0.505

(d) 0.707

ANS D

Q 10 The maximum magnitude of shear stress due to shear force f on a rectangular section of area A at the neutral
axis is

(a) F/A

(b) F/2A

(c) 3F/2A

(d) 2F/3A

ANS C

Q 11 A cantilever of length 2 cm and depth 10 cm tapers inn plan from a width 24 cm to zero at its free end. If the
modulus of elasticity of the material is 0.20 x 106 N/ mm 2 , the deflection of the free end is

(a) 2 mm

(b) 3 mm

(c) 4 mm

(d) 5 mm

ANS D

Q 12 The ratio of longitudinal stress to strain within elastic limit is known as

(a) modulus elasticity

(b) shear modulus of elasticity

(c) bulk modulus of elasticity

(d) tangent modulus of elasticity

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ANS A

Q 13 Poisson’s ratio for steel within elastic limit ranges from

(a) 0.15 to 0.20

(b) 0.25 to 0.24

(c) 0.25 to 0.33

(d) 0.33 to 0.35

ANS D

Q 14 If ∑H and ∑ v are the algebraic sums of the forces resolved horizontally and vertically respectively, and
∑M is the algebraic sum of the moments of forces about any point for the equilibrium of the body acted upon

(a) ∑H =0
(b) ∑V =0

(c) ∑M =0

(d) All options are correct

ANS D

Q 15 The forces acting normally on the cross section of a bar shown in the figure below introduce

(a) compressive stress

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(b) tensile stress

(c) shear stress

(d) none of these

ANS B

Q 16 A material is said to be perfectly elastic if

(a) It regains its original shape on removal of the load

(b) It regains its original shape particularly on removal of the load

(c) It does not reign its original shape at all

(d) None of these

ANS B

Q 17 Ab and Ac are the cross sections of bronze and copper bars of equal length. ∑ b , ∑ c are their respective
stresses due to load p. If Pb and Pc are the loads shared by them

ab Eb
(a) =
bc Ec

(b) P = pb + pc

(c) P = Ab ∑b + A ∑b
c

(d) all options are correct

ANS D

Q 18 The ratio of share stress and shear strain of an elastic material is

(a) Modulus of rigidity

(b) Both Modulus of rigidity and Shear modulus

(c) Young’s modulus

(d) Modulus of Elasticity

ANS B

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Q 19 A bar L meter long and having its area of cross-section A, is subjected to a gradually applied tensile load W. the
strain energy stored in the bar is

(a) WL/2AE

(b) WL/AE

(c) w2 L/AE

(d) w2 L/2AE

ANS D

Q 20 The shear force diagram of a loaded beam shown in the figure below:

(a) a simply supported beam with isolated central load

(b) a simply supported beam with uniformly distributed load

(c) a cantilever with an isolated load at the free end

(d) a cantilever with a uniformly distributed load

ANS C

Q 21 The maximum bending moment for a simply supported beam with a infirmly distributed load W per unit
length, is

(a) wL/2

(b) wL2 / 4

(c) wL2 / 8

(d) wL2 /12

ANS D

Q 22 A simply supported beam which carries a uniformly distributed load has two equal over hangs. To have
maximum B.M. produced in the beam least possible, the ratio of the length of the overhang to the total length of the
beam is

(a) 0.207

(b) 0.307

(c) 0.407

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(d) 0508

ANS A

Q 23 The point of a contraflexure is the point where(a)

(a) B.M. changes sign

(b) B.M. is maximum

(c) B.M. minimum

(d) S.F. is zero

ANS A

Q 24 The assumption in the theory of bending of beams is

(a) material is homogeneous

(b) material is isotropic

(c) young modulus is same in tension as well as in compression

(d) all options are correct

ANS D

Q 25 If the sides of a slab simply supported on edges and spanning in two directions re equal, the maximum bending
moment is multiplied by

(a) 0.2

(b) 0.3

(c) 0.4

(d) 0.5

ANS D

Q 26 When a load is transferred through one surface to another surface in contact, the stress is known as

(a) tensile stress

(b) compressive stress

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(c) shearing stress

(d) None of these

ANS D

Q 27 Assuming the values of maximum deviation ∆P and ∆E to be 25% of the computed value of P and E
respectively, the minimum value of the factor of safety is

(a) 1

(b) 0.67

(c) 1.67

(d) 2.67

ANS c

Q 28 The ratio of hydrostatic stress to the volumetric strain within the elastic range is called

(a) modulus of elasticity

(b) shear modulus of elasticity

(c) Both modulus of elasticity and shear modulus of elasticity

(d) None of these

ANS D

Q 29 The statement that a section plane before the application of twisting moment continue to remain plane after
the application of twisting moment is valid

(a) all types of cross section

(b) all types of cross section with curved boundaries

(c) only solid circular cross sections

(d) only hollow or solid circular cross section

ANS D

Q 30 According to the maximum strain energy theory, yield locus is

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(a) a rectangle

(b) a circle

(c) a hexagon

(d) an ellipse

ANS D

Q 31 The number of elastic constant for a complete isotropic elastic material which follows Hooks law is

(a) 3

(b) 4

(c) 21

(d) 25

ANS B

Q 32 The expression of the elastic curve at the free end of a cantilever beam of span “L” flexural rigidity “El” and
subjected to uniformly distributed load intensity ‘W’ is

(a) w L2 / (2El)

(b) w L3 / (3El)

(c) w L4 / (8El)

(d) w L3 / (6El)

ANS B

Q 33 Slendemess ratio of a 5 m long column hinged at both ends and having a circular cross section with diameter
16 cm is

(a) 31.25

(b) 62.5

(c) 100

(d) 125

ANS D

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Q 34 A rectangle beam of uniform strength and subjected to a bending moment M has a constant width. The
variation in depth will be proportional to

(a) 1/M

(b) M

(c) M 3

(d) M 2

ANS B

Q 35 A fixed beam is subjected to a uniformly distributed load over its entire span. The joints of contra-flexure will
occur on either side of the centre at a distance of _ from the centre

(a) L/ 3

(b) L/3

(c) L/(2 3 )

(d) L/(4 3 )

ANS C

Q 36 The strain energy of a beam is

(a) independent of shear force in the beam

(b) independent of bending moment in the beam

(c) same as total potential energy

(d) none of these

ANS D

Q 37 Which material has the highest value of Poisson’s ratio?

(a) Rubber

(b) Wood

(c) Copper

(d) Steel

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ANS A

Q 38 The ratio of young’s modulus to modulus of rigidity for a material having poisson’s ratio 0.2 is

(a) 2.4

(b) 0.416

(c) 0.357

(d) 2.8

ANS A

Q 39 What is the slope at the end of simply supported beam of span 2 m and load 5 kg/unit length over the entire
span

(a) 1/16 EI

(b) 5/3 EI

(c) I/3 EI

(D) 1/20 EI

ANS B

Q 40 A circular shaft is subjected to a torque “T’ which is half of the bending moment applied ,then the ratio of
maximum bending stress and maximum shear stress is

(a) 2

(b) 4

(c) 3

(d) 1.5

ANS B

Q 41 When both ends of a column are fixed, the crippling load is F. if one end of the column is made free, the value
of crippling load will be changed to

(a) F/4

(b) F/2

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(c) F/16

(d) 4F

ANS C

Q 42 A cantilever beam is shown in the figure, find the magnitude and direction of moment to be applied at free end
for zero vertical deflection

(a) 9 kNm clockwise

(b) 9 kNm anti-clockwise

(c) 12 kNm clockwise

(d) 12 kNm anti-clockwise

ANS C

Q 43 What will be the relation between E and K when poisson’s ratio is 0.25?

(a) E = K

(b) E = 2K

(c) E = 1.5 K

(d) E = K = 0

ANS C

Q 44 moment of inertia of a triangular section, about an axis passing through its center of gravity is

(a) bh3 /12

(b) bh3 /36

(c) bh3 /32

(d) none of these

ANS B

Q 45 The hoop stress induced in a thin cylinder by winding it with wire under tension will be

(a) compressive

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(b) tensile

(c) shear

(d) zero

ANS A

Q 46 The shape of cable under uniformly distributed horizontal load is

(a) parabolic

(b) catenary

(c) circular

(d) triangular

ANS A

Q 47 The strain energy stored in a body due to external loading, within the elastic limit is known as

(a) malleability

(b) ductility

(c) toughness

(d) resilience

ANS A

Q 48 The area under stress strain curve represents

(a) breaking strength of material

(b) toughness of material

(c) hardness of material

(d) energy required to cause failure

ANS B

Q 49 The ratio of the stresses produced by suddenly applied and gradually applied lades on a bar is

(a) 0.25

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(b) 0.5

(c) 1

(d) 2

ANS D

Q 50 A column has effective length L when its both ends are fixed. What will be the new effective length if one end
becomes hinged

(a) L

(b) 0.5L

(c) 1.41L

(d) 2L

ANS C

Q 51 A simply supported beam of span L and flexural rigidity EI, carries a unit point load at its centre. The strain
energy in the beam due to bending is

(a) L3 /48EI

(b) L3 /192EI

(c) L3 /96EI

(d) L3 /16EI

ANS C

Q 52 Maximum allowable shear stress in a section is 100 kg/ cm 2 . If bar is subjected to tensile force of 5000 kg and if
the section is square shaped, what will be dimension of sides of the squares

(a) 10 cm

(b) 5 cm

(c) 12 cm

(d) 14 cm

ANS B

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Q 53 A brittle material of 4 sq. m cross section carries an axial tensile load of 20 tonnes. What will be the maximum
shear stress in the block?

(a) 1250 kg/ cm 2

(b) 1000 kg/ cm 2

(c) 500 kg/ cm 2

(d) none of these

ANS D

Q 54 A torsion member is fabricated from two concentric thin tubes. At the ends, the tubes are welded to rigid discs
so that both the tubes are twisted as a unit. The radius of the outer is 2r and that of the inner tube is r. if the shear
stresses developed in the outer tube is ‘T’ then, the shear stress in the inner tube will be

(a) T

(b) 0.25 T

(c) 0.75 T

(d) 0.5 T

ANS D

Q 55 The maximum bending stress in an I-beam occurs at the

(a) neutral axis

(b) outermost fiber

(c) joint of wedge and flange

(d) section where shear stress is maximum

ANS B

Q 56 A support is said to be non-yielding if

(a) it can take any amount of reaction

(b) it is frictionless

(c) it holds the beam firmly

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(d) the beam has zero slope at the support

ANS D

Q 57 A rectangular bar has been subjected to torsion the maximum shear stress will occur

(a) at the centre

(b) at the corner

(c) at the middle of longer side

(d) along the diagonal

ANS C

Q 58 Which of the following section will be best n torsion?

(a) solid circular

(b) hollow circular

(c) triangle

(d) rectangular

ANS B

Q 59 If a close coiled helical spring absorbs 30 Nmm of energy while extending by 5mm, its stiffness will be

(a) 2 N/mm

(b) 4 N/mm

(c) 6 N/mm

(d) 10 N/mm

ANS C

Q 60 The core of a circular section short column of diameter d is concentric circular area having a diameter

(a) d/4

(b) d/3

(c) d/2

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(d) d/8

ANS A

Q 61 The maximum shear stress occurs on the outermost fibres of a circular shaft under torsion. In a close coiled
helical spring, the maximum shear stress occurs on the

(a) outermost fibres

(b) Fibres at mean diameter

(c) Innermost fibres

(d) None of these

ANS C

Q 62 A closed-coil helical spring is subjected to a torque about its axis. The spring wire would experience a

(a) Bending stress

(b) direct tensile stress of uniform intensity at its cross section

(c) Direct shear stress

(d) Torsional shearing stress

ANS A

Q 63 Two beam of equal cross-sectional area are subject to equal bending moment. If one beam has square cross-
section and the other has circular section, then

(a) both beams will be equally strong

(b) circular section beam will be stronger

(c) square section beam will be stronger

(d) the strength of the beam will depend on the nature of aiding

ANS B

Q 64 Consider the following factors

1 Large number of loading cycles

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2 Large variations in stress

3 Large stress concentrations

(a) A and B

(b) A and C

(c) B and C

(d) A, B, and C

ANS D

Q 65 A simply supported beam of circular cross section with diameter d and length l carries a concentrated load W
at the centre of the beam. The strength of the beam is proportional to _

(a) 1/ D 3

(b) 1/ D 2

(c) D 3 /1

(d) D 2 /1

ANS C

Q 66 Which of the following materials is expected to have the least value of young’s modulus of elasticity?

(a) Wood

(b) Copper

(c) Glass

(d) Aluminium

ANS A

Q 67 Two shafts of same length and material are joined in series. If the ratio of their diameters is 2, then the ratio
angle of twist will be_

(a) 2

(b) 4

(c) 8

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(d) 16

ANS D

Q 68 An open- coiled helical spring of mean diameter D, number of coils N and wire diameter d is subjected to an
axial force P. The wire of the spring will be subject to

(a) Direct shear only

(b) Combined shear and bending only

(c) Combined shear, bending and twisting

(d) Combined shear and twisting only

ANS C

Q 69 The ratio of moment of inertia about the neutral axis to the distance of the most distant point of the section
from the neutral axis is called_

(a) Polar modulus

(b) Section modulus

(c) Modulus of rupture

(d) Flexural rigidity

ANS B

Q 70 For a hollow shaft of external and internal diameters 10 cm and 5 cm respectively, the torsional sectional
modulus will be approximately_

(a) 184 cm 2

(b) 275 cm 2

(c) 368 cm 2

(d) 536 cm 2

ANS A

Q 71 A solid circular shaft has been subjected to a pure torsion moment. The ratio of maximum shear stress to
maximum normal stress at any point would be_

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(a) 1:2

(b) 2:3

(c) 1:1

(d) 2:1

ANS C

Q 72 Flat spiral springs are used in_

(a) Cycles

(b) Road vehicles

(c) Railways wagons

(d) Watches

ANS D

Q 73 A column with highest equivalent length has_

(a) Both ends fixed

(b) Both ends hinged or pin-joined

(c) One end fixed, other entirely free

(d) One end fixed, other end hinged

ANS D

Q 74 Refer Rankine’s empirical correlation for bucking load of an intermediate column. The value of constant and
will be least for a column made of_

(a) Cast iron

(b) Wrought iron

(c) Mild steel

(d) Timber

ANS B

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Q 75 If a point load acting at the mid span of a fixed beam of uniform section produces fixed end moments of 60
kNm,, then same load spread uniformly over the entire span will produce fixed end moments equal to_

(a) 20 kNm

(b) 30 kNm

(c) 40 kNm

(d) 45 kNm

ANS C

Q 76 At a point in a strained material, if two mutually perpendicular tensile stresses of 2000 kg/ cm 2 are acting, then
the intensity tensile stress on a plane inclined at 150 to the axis of the minor stress will be_

(a) 125 kg/ cm 2

(b) 250 kg/ cm 2

(c) 500 kg/ cm 2

(d) 1000 kg/ cm 2

ANS B

Q 77 A body is said to be in equilibrium if_

(a) it moves horizontally

(b) it moves vertically

(c) it rotates about its C.G.

(d) None of these

ANS None of these

Q 78 The forces acting normally on the cross section of a bar shown in the figure given below introduces_

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(a) compressive stress

(b) tensile stress

(c) shear stress

(d) none of these

ANS A

Q 79 At yield point of a test piece, the material_

(a) obeys Hooke’s

(b) behaves in an elastic manner

(c) regains its original shape on removal of the load

(d) undergoes plastic deformation

ANS D

Q 80 The ratio of tangential and normal component of a stress on an inclined plane through 0 degree to the
direction of the force is _

(a) sin θ

(b) cos θ

(c) tan θ

(d) cos θ

ANS C

Q 81 Pick up the correct statement from the following

(a) For a uniformly distributed, the shear force varies linearly

(b) For a uniformly distributed load, bulk modular curve is a parabola

(c) For a load varying linearly, the shear force curve is a parabola

(d) All options are correct

ANS D

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Q 82 At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section
by _

(a) depth of the section

(b) depth of the neutral axis

(c) maximum tensile stress at the section

(d) maximum compressive stress at the section

ANS B

Q 83 The moment of inertia of a circular section about any diameter D, is_

(a) (nD 2 ) / 64

(b) (nD 4 ) / 32

(c) (nD 3 ) / 64

(d) (nD 4 ) / 64

ANS D

Q 84 In case of principle axes of a section_

(a) sum of moment of inertia is zero

(b) difference of moment of inertia is zero

(c) product of moment of inertia is zero

(d) None of these

ANS C

Q 85 The locus of the moment of inertia about inclined axis to the principal axis is_

(a) straight line

(b) parabola

(c) circle

(d) ellipse

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ANS D

Q 86 The ratio moment of inertia of a triangle section its base and about a centroidal axis parallel to its base is_

(a) 1

(b) 1.5

(c) 2

(d) 3

ANS D

Q 87 If P is the wind pressure in kg / cm 2 , V is the velocity in km/hour and K is constant of proportionality then_

(a) P = K / v 2

(b) v = K / P 2

(c) P = Kv 2

(d) P = Kv

ANS C

Q 88 Factor of safety is the ratio of_

(a) yield stress to working stress

(b) tensile stress to working stress

(c) compressive stress to working stress

(d) bearing stress to working stress

ANS A

Q 89 The ratio of shearing stress to shearing strain within elastic limit, is known as_

(a) modulus of elasticity

(b) shear modulus of elasticity

(c) bulk modulus of elasticity

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(d) tangent modulus of elasticity

ANS B

Q 90 A circular shaft fixed at A has diameter D for half of its length and diameter D/2 over the other hall. What is the
rotation of C relative to B if the rotation to A is 0.1 radians?

(a) 0.4 radians

(b) 0.08 radians

(c) 1.6 radians

(d) 3.2 radians

ANS C

Q 91 A hollow shaft is subjected to torsion. Which of the following diagrams shows the shear stress variation in the
shaft along its radius?

(a) a

(b) b

(c) c

(d) d

ANS c

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Q 92 Moment of inertia of a circular section about its diameter is_

(a) nd 3 /16

(b) nd 4 / 32

(c) nd 2 / 32

(d) nd 4 / 64

ANS D

Q 93 A lever is supported on two bings at A and c. It carries a force of 3 KN as shown in the figure below. The
bending moment B will be_

(a) 3 KN-m

(b) 2KN-m

(c) 1KN-m

(d) None of these

ANS D

Q 94 The centre of gravity of an equilateral triangle with each side a is _ from any of the three sides

3a
(a)
2

a
(b)
2 3

(c) 2 3a

(d) 3 2a

ANS B

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Q 95 A horizontal beam carrying uniformly distributed load is supported with equal overhangs is shown in the figure
below. The resultant bending moment at the mid-span shell will be zero if (a/b) is:

(a) 0.75

(b) 0.66

(c) 0.5

(d) 0.33

ANS C

Q 96 Two persons of equal weights are hanging by their hands from the ends of a rope hung over frictionless puliey.
They begin to climb. One person can climb twice the speed of other, who gets to the top first?

(a) Slower climber

(b) Both get there together

(c) faster climber

(d) cannot climb at oil

ANS B

Q 97 The phenomenon of slow extension of materials, i.e. increasing with time having no constant load, is called_

(a) Creeping

(b) Breaking

(c) Yielding

(d) None of these

ANS C

Q 98 The stress at which extension of a material takes place more quickly as compared to the increase in load is
called as

(a) Elastic point

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(b) Plastic point

(c) Breaking point

(d) Yielding point

ANS D

Q 99 Shear stress distribution of beam of rectangular cross-section, subjected to transverse loading will be

(a) a

(b) b

(c) c

(d) d

ANS D

Q 100 If the stress in each cross-section of a pillar is just equal to its working stress its form is called

(a) form of equal stress

(b) Form of equal strength

(c) Form of equal section

(d) None of these

ANS A

Q 101 When a thin cylindrical shell is subjected to an internal pressure, there will be_

(a) A decrease in diameter and length of the shell

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(b) An increase in diameter and decrease in length of the shell

(c) a decrease in diameter and increase in length of the shell

(d) None of these

ANS D

Q 102 The compression members always tend to buckle on the direction of

(a) Axis load

(b) Perpendicular to the axis of road

(c) Minimum cross- sectiuon

(d) Least radius of gyration

ANS D

Q 103 A simply supported beam is loaded as shown in he figure below. The maximum shear force in the beam will _

(a) 0

(b) w

(c) 2w

(d) 4w

ANS C

Q 104 A column with maximum equivalent length has

(a) Both ends hinged

(b) Both ends fixed

(c) One end fixed and the other end is hinged

(d) One end fixed and the other end free

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ANS D

Q 105 In case of eccentrically loaded struts_ is preferred

(a) Solid section

(b) Hollow section

(c) Composite section

(d) Reinforced section

ANS C

Q 106 In a tensile test, when the material is stressed beyond elastic limit, the tensile strain_ as compared to the
stress

(a) decreases slow

(b) increase slowly

(c) decreases more quickly

(d) increases more quickly

ANS B

Q 107 Factor of safety is define as the ratio of

(a) ultimate stress to working stress

(b) working stress to ultimate stress

(c) breaking stress to ultimate stress

(d) ultimate stress to breaking stress

ANS A

Q 108 In compression test, the fracture in cast iron specimen would

(a) occur along the axis of load

(b) occur along an oblique plane

(c) occur at right angles to the axis of specimen

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(d) not occur

ANS B

Q 109 Bending moment distribution in a built beam is shown in the figure below. The shear force distribution in the
beam is represented by.

(a)

(b)

(c)

(d)

Q 110 The figure below shows an I-section of the beam. The shear stress at point P is 12 MPa. The stress at point Q
in the web is:

(a) Indeterminable due to incomplete data

(b) 60 MPa

(c) 18 MPa

(d) 12 MPa

ANS B

Q 111 The maximum frictional force, which comes into play , when a body to side over the surface of the other body,
is known as

(a) static friction

(b) Limiting friction

(c) Dynamic friction

(d) Co-efficient of friction

ANS B

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Q 112 A column of length ‘L’ with both ends fixed may be considered as equivalent to a column of length _ with
both ends hinged

(a) L/8

(b) L/2

(c) L/4

(d) L

ANS B

Q 113 According to Euler’s column theory, the crippling load for a column of length fixed at both ends is _ the
crippling load for a similar column hinged at both ends

(a) equal to

(b) 4 times

(c) 2 times

(d) 8 times

ANS B

Q 114 Two shafts A and B are made of the same material. The diameter of shaft B is twice that of shaft A. The ratio
of power which can be transmitted by shift A to that of shaft B is_

(a) 1/2

(b) 1/4

(c) 1/8

(d) 1/16

ANS C

Q 115 For the two shafts connected in parallel, find which statement is true?

(a) Torque in each shaft is the same

(b) Shear stress in each shaft is the same

(c) Angle of twist of each shaft is the same

(d) Torsional stiffness of each shaft is the same

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ANS C

Q 116 The bucking load will be maximum for a column if_

(a) One end of the column is clamped and the other end is free

(b) Both ends of the column are clamped

(c) Both ends of the column are hinged

(d) One end of the column is hinged and the other end is free

ANS B

Q 117 The number of strain readings needed on a plane surface to determine the principle strains and their
directions are_

(a) 1

(b) 2

(c) 3

(d) 4

ANS C

Q 118 If the value of Poisson’s ratio is zero, then it means that_

(a) The material is rigid

(b) The material is perfectly plastic

(c) There is no longitudinal strain in the material

(d) None of these

ANS D

Q 119 The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6
cm about centroidal axis is _ cm4

(a) 437.5

(b) 337.5

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(c) 237.5

(d) 137.5

ANS A

Q 120 A steel bar 20 mm in diameter simply supported at its ends over a total span of 40 cm, carries a load at its
center. If the maximum stress included in the bar is limited to 480/tt N/mm2 then the bending strain energy stored
in the bar is_

(a) 411 N mm

(b) 511 N mm

(c) 611 N mm

(d) 711 N mm

ANS C

Q 121 The Charpy test is conducted to measure_

(a) Toughness

(b) Creep strength

(c) Fatigue strength

(d) Elastic strength of a material

ANS A

Q 122 The stress produced by a suddenly applied load as compared to that produced by the same load when
applied gradually is _ times.

(a) 1.5

(b) 2

(c) 3

(d) 4

ANS B

Q 123 The bending moment for a certain portion of the beam is constant. For that section, shear force would be_

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ADVANCE ENGINEERING CLASSES SOM

(a) Zero

(b) Increasing

(c) Decreasing

(d) Constant

ANS A

Q 124 An increase in load at the free end of a cantilever is likely to cause failure_

(a) At the free end

(b) At the mid of its length

(c) At the fixed support end

(d) Anywhere on the beam

ANS C

Q 125 The property of a material which enables it to resist fracture due to high impact loads is known as

(a) elasticity

(b) endurance

(c) strength

(d) toughness

ANS D

Q 126 Resilience of a material is important, when it is subjected to

(a) combined loading

(b) fatigue

(c) thermal stresses

(d) shock loading

ANS D

Q 127 Which of the following ;is not the correct procedure to increase the fatigue limit

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(a) cold working

(b) shot peening

(c) surface decarburization

(d) under-stressing

ANS C

Q 128 Hookie’s law holds good upto:

(a) yield point

(b) limit of proportionality

(c) breaking point

(d) elastic limit

ANS B

Q 129 Deformation per unit length in the direction of force is known as:

(a) strain

(b) lateral strain

(c) linear strain

(d) linear stress

ANS D

Q 130 A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with
increasing loads will behave as under:

(a) uniform throughout

(b) increase uniformly

(c) first increase and then decrease

(d) increase uniformly first and then increase rapidly

ANS D

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Q 131 Tensile strength of a material is obtained by dividing the maximum load during the test by the:

(a) area at the time of fracture

(b) original cross-sectional area

(c) the time of fracture and original cross-sectional area

(d) minimum area after fracture

ANS B

Q 132 Percentage reduction of area in performing tensile test on cast iron may be of the order of:

(a) 50%

(b) 25%

(c) 0%

(d) 15%

ANS C

Q 133 For steel, the ultimate strength in shear as compared to in tension is nearly:

(a) same

(b) half

(c) one-third

(d) two-third

ANS B

Q 134 In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is:

(a) more

(b) less

(c) same

(d) more/less depending on composition

ANS B

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Q 135 If a part is constrained to move and heated, it will develop

(a) principle stress

(b) tensile stress

(c) compressive stress

(d) shear stress

ANS C

Q 136 The materials which exhibit the same elastic properties in all directions are called:

(a) homogenous

(b) inelastic

(c) isotropic

(d) isentropic

ANS C

Q 137 Poisson’s ratio is define d as the ratio of_

(a) longitudinal stress and longitudinal strain

(b) longitudinal stress and lateral stress

(c) lateral stress and longitudinal stress

(d) lateral stress and lateral strain

ANS C

Q 138 If a body is transmitting torque T N-m at N rpm, then horsepower (Watts) transmitted will be:

(a) TN

(b) TN/75

(c) TN/4500

(d) 2ttNT/75

ANS D

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Q 139 A right-circular cylinder open at top is filled with water and rotated about its vertical axis at such speed that
half the water spills out. What is the value of pressure at entre of the bottom?

(a) One half its value when cylinder was full

(b) One fourth its value when cylinder was full

(c) Zero

(d) Insufficient data

ANS C

Q 140 At a point on a streamline, the velocity is 3 m/sec and the radius of curvature is 9 m. if the rate of increase of
velocity along the streamline at this point is 1/3 m/sec/m, then the total acceleration at this point would be_

(a) 1m / sec 2

(b) 3m / sec 2

(c) 1/ 3m / sec 2

2
(d) ∫ 2m / sec
ANS D

Q 141 In a simply supported beam, where the shear force is zero, the bending moment will be_

(a) zero

(b) maximum

(c) minimum

(d) zero or minimum

ANS B

Q 142 The stress in a body due to suddenly applied load compared to when it is applied gradually is_

(a) same

(b) half

(c) two times

(d) four times

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ANS C

Q 143 Modulus of rigidity is defined as the ratio of_

(a) Longitudinal stress and longitudinal strain

(b) volumetric stress and volumetric strain

(c) lateral stress and lateral strain

(d) shear stress and shear strain

ANS D

Q 144 The intensity of stress which causes unit strain is called_

(a) unit stress

(b) bulk modulus

(c) modulus of rigidity

(d) modulus of elasticity

ANS D

Q 145 The property of a material by virtue of which a body returns to its original shape after removal of the load is
called_

(a) Plasticity

(b) Elasticity

(c) Ductility

(d) Malleability

ANS B

Q 146 For which material the Poisson’s ratio is more than unity?

(a) steel

(b) copper

(c) aluminium

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(d) cast iron

(a) only A

(b) only B

(c) only C

(d) none of these

ANS D

Q 147 A beam is loaded as cantilever. If the load at the end is increases, the failure will occur_

(a) in the middle

(b) at the tip below the load

(c) at the support

(d) anywhere

ANS C

Q 148 At the principal planes_

(a) the normal stress is maximum or minimum and the shear stress is zero

(b) the tensile and compressive stresses are zero

(c) the tensile stress is zero and the shear stress is maximum

(d) no stress acts

ANS A

Q 149 When the spring of a watch is wound it posses_

(a) heat energy

(b) kinetic energy

(c) potential energy

(d) wound energy

ANS C

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Q 150 In the case of an elastic bar fixed at upper end loaded by a falling weight at lower end, the shock load
produced can be decreased by

(a) decreasing the cross-section area of bar

(b) increasing the cross-section area

(c) remain unaffected with cross-section area

(d) would depend upon other factors

ANS A

Q 151 For a long and narrow cross section bar subjected to torsion T, the value of maximum shear stress will be

(a) T / bt 2

(b) T / (4 bt 2 )

(c) 2T / bt 2

(d) None of these

ANS D

Q 152 Resilience of a bolt may be increases by

(a) increasing its length

(b) increasing its shank diameter

(c) increasing diameter of threaded portion

(d) increasing head size

ANS A

Q 153 Strain is defined as the ratio of_

(a) change in volume to original volume

(b) change in length to original length

(c) change in cross sectional area to original cross-sectional area

(d) All options are correct

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ANS D

Q 154 The unit of Young’s modulus is _

(a) mm/mm

(b) kg/cm

(c) kg

(d) kg / cm 2

ANS D

Q 155 The materials having same elastic properties in all directions are called

(a) ideal materials

(b) uniform materials

(c) isotropic materials

(d) practical materials

ANS C

Q 156 The ultimate tensile stress of mild steel compared to ultimate compressive stress is_

(a) same

(b) more

(c) less

(d) more or less depending on the other factors

ANS B

Q 157 The Young’s modulus of a wire is defined as the stress which will increases the length of wire compared to its
original lengths:

(a) half

(b) same amount

(c) double

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(d) one-fourth

ANS B

Q 158 During a tensile test on a specimen of 1 cm 2 cross-section, maximum load observed was 8 tonnes and area of
cross-section at neck was 0.5 cm 2

(a) 4 tonnes/ cm 2

(b) 8 tonnes/ cm 2

(c) 16 tonnes/ cm 2

(d) 22 tonnes/ cm 2

ANS B

Q 159 Which is the false statement about stress-strain method?

(a) It does not exist

(b) It is more sensitive to changes in both metallurgical and mechanical conditions

(c) It gives a more accurate picture of the ductility

(d) It can be correlated with stress-strain values in other tests like torsion, impact, combined stress tests etc.

ANS A

Q 160 Which of the following materials is most elastic?

(a) rubber

(b) plastic

(c) brass

(d) steel

ANS D

Q 161 The total elongation produced in a bar of uniform section hanging vertically downwards due to its won
weight is equal to that produced by a weight_

(a) of same magnitude as that of bar and applied at the lower end

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(b) half the weight of bar applied at the lower end

(c) half of the square of weight of bar applied at the lower end

(d) one-fourth of weight of bar applied at the lower end

ANS B

Q 162 The property of a material which allows it to be drawn into a smaller section is called

(a) plasticity

(b) ductility

(c) elasticity

(d) malleability

ANS B

Q 163 Joggled welded joints are used_

(a) where longitudinal shear is present

(b) where sever loading is encountered and the upper surface of both pieces must be in the same plane

(c) to join two pieces of metal in the same manner as rivet joint metals

(d) there is nothing called Jogged welded joint

ANS B

Q 164 In the step methods the computations must

(a) proceed downstream in subcritical flow

(b) proceed upstream in subcritical flow

(c) always proceed upstream

(d) none of thee

ANS B

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