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This mock test of Test: Fluctuating Stresses & Fatigue Failure for Mechanical Engineering helps you for every Mechanical Engineering entrance exam.
This contains 5 Multiple Choice Questions for Mechanical Engineering Test: Fluctuating Stresses & Fatigue Failure (mcq) to study with solutions a complete question bank.
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QUESTION: 1

The stress represented by sin (t) + 1 belongs to which category?

Solution:

Explanation: The minimum stress value is zero and hence is belongs to Repeated Stress category.

QUESTION: 2

The stress represented by sin (t) + 2 belongs to which category?

Solution:

Explanation: The mean as well as the amplitude value is non zero hence it belongs to Fluctuation Stress Category.

QUESTION: 3

The stress represented by sin (t) + 4 belongs to which category?

Solution:

Explanation: The mean as well as the amplitude value is non zero hence it belongs to Alternation Stresses category which is the other name of Fluctuation Stresses.

QUESTION: 4

The stress represented by cos (t) belongs to which category?

Solution:

Explanation: Half cycle is in tensile stress and other half in compressive stress, hence it belongs to Reversed Stresses Category.

QUESTION: 5

If the mean stress value for a sinusoidal stress function is zero, then this type of stress falls in which category?

Solution:

Explanation: If mean is to be zero, then there must be compressive as well as tensile stresses and hence belongs to reversed stresses category.

### Fatigue Failure theories

Video | 12:20 min

### Fatigue Failure Theories

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