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Q1. | The strain energy stored in a body, when suddenly loaded, is __________ the strain energy stored when same load is applied gradually. |

A. | equal to [Wrong Answer] |

B. | one-half [Wrong Answer] |

C. | twice [Wrong Answer] |

D. | four times [Correct Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ The total elongation produced in a bar of uniform section hanging vertically downwards due to its own weight is equal to that produced by a weight

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

half the weight of bar applied at lower end

half of the square of weight of bar applied at lower end

one-fourth of weight of bar applied at lower end

⇒ When a body is subjected to three mutually perpendicular stresses, of equal intensity, the ratio of direct stress to the corresponding volumetric strain is known as.

Young's modulus

modulus of rigidity

bulk modulus

Poisson's ratio

⇒ The compressive strength of brittle materials is __________ its tensile strength.

equal to

less than

greater than

none of these

⇒ A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

same

double

half

one-fourth

⇒ The unit of stress in S.I. units is

N/mm2

kN/mm2

N/m2

any one of these

⇒ Strain is defined as the ratio of

change in volume to original volume

change in length to original length

change in cross-sectional area to original cross-sectional area

any one of the above

⇒ On one side of a neutral axis of a beam, there is a tensile stress and on the other side of the beam there is a compressive stress.

Agree

Disagree

Yes

No

⇒ Modulus of rigidity may be defined as the ratio of.

linear stress to lateral strain

lateral strain to linear strain

linear stress to linear strain

shear stress to shear strain

⇒ A beam of uniform strength may be obtained by.

keeping the width uniform and varying the depth

keeping the depth uniform and varying the width

varying the width and depth both

any one of the abov

⇒ A rectangular beam of length

*l*supported at its two ends carries a central point load

*W*. The maximum deflection occurs.

at the ends

at l/3 from both ends

at the centre

none of these

⇒ If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is?

0.20

0.30

0.50

0.60

⇒ In a simple bending of beams, the stress in the beam varies?

linearly

parabolically

hyperbolically

elliptically

⇒ The ratio of the largest load in a test to the original cross-sectional area of the test piece is called.

elastic limit

yield stress

ultimate stress

breaking stress

⇒ In compression test, the fracture in cast iron specimen would occur along?

the axis of load

an oblique plane

at right angles to the axis of specimen

would not occur

⇒ For riveting, the size of hole drilled in plates is __________ shank diameter of rivet.

equal to

less than

greater than

none of these

⇒ The shear force diagram fora cantilever beam of length

*l*and carrying a gradually varying load from zero at free end and

*w*per unit length at the fixed end is a.

horizontal straight line

vertical straight line

inclined line

parabolic curve

⇒ The bending moment at the ends of a simply supported beam will be zero.

Yes

No

Agree

Disagree

⇒ The product of the tangential force acting on the shaft and its distance from the axis of the shaft (i.e. radius of shaft) is known as.

bending moment

twisting moment

torsional rigidity

flexural rigidity

⇒ According to Euler's column theory, the crippling load of a column is given by

*p*= π

^{2}

*EI*/

*Cl*

^{2}In this equation, the value of

*C*for a column with both ends hinged, is

1/4

1/2

1

2

⇒ The lower layer of the beam as shown in the below figure, will be

in tension

in compression

neither in tension nor in compression

none of these

⇒ A beam supported on more than two supports is called

simply supported beam

fixed beam

overhanging beam

continuous beam

⇒ Which of the following statement is correct?

The size of hole drilled in riveting plates is less than the actual size of rivet.

The centre to centre distance between two consecutive rivets in a row is called margin.

Rivets are generally specified by its shank diameter.

Tearing of plates can be avoided by taking the pitch of rivets equal to 1.5 times the diameter of rivet hole.

⇒ A steel bar of 5 mm is heated from 15° C to 40° C and it is free to expand. The bar Will induce?

no stress

shear stress

tensile stress

compressive stress

⇒ The deformation of the bar per unit length in the direction of the force is known as.

linear strain

lateral strain

volumetric strain

shear strain

⇒ The proof resilience per unit volume of a material is known as modulus of resilience.

True

False

Minimum

None of these

⇒ A riveted joint in which every rivet of a row is opposite to other rivet of the outer row, is known as

chain riveted joint

diamond riveted joint

cross-cross riveted joint

zig-zag riveted joint

⇒ Which of the following statement is wrong?

In the theory of simple bending, the assumption is that the plane sections before bending remains plane after bending.

In a beam subjected to bending moment, the strain is directly proportional to the distance from the neutral axis.

At the neutral axis of a beam, the bending stress is maximum.

The bending stress in a beam is inversely proportional to the section modulus.

⇒ Rivets are generally specified by?

thickness of plates to be joined

overall length

shank diameter

diameter of head

⇒ At the neutral axis of a beam.

the layers are subjected to maximum bending stress

the layers are subjected to minimum bending stress

the layers are subjected to compression

the layers do not undergo any strain

⇒ The ratio of maximum shear stress developed in a rectangular beam and a circular beam of the same cross-sectional area is

2/3

3/4

1

9/8