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This mock test of Test: Design For Static And Dynamic Load (Level - 1) for Mechanical Engineering helps you for every Mechanical Engineering entrance exam.
This contains 10 Multiple Choice Questions for Mechanical Engineering Test: Design For Static And Dynamic Load (Level - 1) (mcq) to study with solutions a complete question bank.
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QUESTION: 1

Which strength of the material is to be considered for design of a ductile component under cyclic load?

Solution:
Endurance strength is to be considered for design of a component under cyclic load. The fatigue or endurance limit of a material is defined as the maximum amplitude of completely reversed stress that the standard specimen can sustain for an unlimited number of cycles without fatigue failure.

QUESTION: 2

The relationship between notch sensitivity factor (q), theoretical stress concentration factor

(k_{t}) and fatigue (or) form stress concentration (k_{f}) is given

Solution:

Note:

Actual stress concentration factor

Theoretical stress concentration factor

QUESTION: 3

Endurance limit is determined by a test, applying

Solution:

QUESTION: 4

In a semi-infinite flat plate shown in the figure, the theoretical stress concentration factor k_{t} for an elliptical hole of major axis 2a and minor axis 2b is given by

Solution:

QUESTION: 5

Fatigue of a component is due to

Solution:
Fatigue of a component is due to cyclic load. Fatigue occurs when a material is subjected to repeated loading and unloading.

QUESTION: 6

Endurance limit of a component

Solution:

QUESTION: 7

Number of cycles of repetitions for low cycle fatigue in steel is

Solution:

QUESTION: 8

To design a component of ductile material under variable loading, stress concentration factor is applied to

Solution:

QUESTION: 9

The maximum value of stress concentration factor in an infinite plate with a circular hole under uniaxial tension is

Solution:

For circular, a = b

QUESTION: 10

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

Solution:
Fatigue limit of material can be increased by

By applying residual compressive stress (under stress)

By surface finishing

By shot peening

Cold working

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