A cantilever beam of negligible weight is carrying a mass M at its free end and is also resting on an elastic support of stiffness K1 as shown in the figure. If K2 represents the bending stiffness of the beam, the natural frequency (rad/s) of the system is

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

In a single degree of freedom vibration system, the un-damped natural frequency is.........the damped natural frequency

1.  Greater than

2.  Equal to

3.  Less than

4.  Uncertain

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4
Correct Answer :

Uncertain


Explanation :
No Explanation available for this question

A disc of mass ‘m’ and radius ‘r’ is attached to a spring of stiffness ‘K’. During its motion, the disc rolls on the ground. When released from some stretched position, centre of the disc will execute harmonic motion with a time period of

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

Guest’s theory of failure is applicable for which of the following type of materials

1.  Brittle

2.  Ductile

3.  Elastic

4.  Plastic

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4
Correct Answer :

Ductile


Explanation :
No Explanation available for this question

Rankine’s theory of failure is applicable for which of the following type of materials

1.  Brittle

2.  Ductile

3.  Elastic

4.  Plastic

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4
Correct Answer :

Brittle


Explanation :
No Explanation available for this question

The fatigue life of a part can be improved by

1.  Electroplating

2.  Polishing

3.  Coating

4.  Shot preening

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4
Correct Answer :

Shot preening


Explanation :
No Explanation available for this question

Stress concentration in static loading is more serious in

1.  Ductile materials

2.  Brittle materials

3.  Equally serious in both cases

4.  Depends on other factors

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4
Correct Answer :

Brittle materials


Explanation :
No Explanation available for this question

Stress concentration in cyclic loading is more serious in

1.  Ductile materials

2.  Brittle materials

3.  Equally serious in both cases

4.   Depends on other factors

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4
Correct Answer :

Ductile materials


Explanation :
No Explanation available for this question

I.S specifies which of the following total number of grades of tolerances

1.  18

2.  16

3.  20

4.  22

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4
Correct Answer :

18


Explanation :
No Explanation available for this question

The uniform pressure theory as compared to the uniform wear theory gives

1.  Higher frictional torque

2.  Lower frictional torque

3.  Either lower or high frictional torque

4.  None of these

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4
Correct Answer :

Higher frictional torque


Explanation :
No Explanation available for this question
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