Machine Kinematics MCQs – Compound Pendulum

Questions

1 Which of the following shape of the body can be considered as compound pendulum?

A Cylindrical

B Cubical

C Cuboidal

D Any rigid body

View Answer

Answer: Any rigid body

2 Compound pendulum needs to be spherical in shape.

A True

B False

View Answer

Answer: False

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3 If the mass of the object is doubled then what will be the effect of time period of the compound pendulum?

A Doubled

B Remains same

C Halved

D Decreases by √2 times

View Answer

Answer: Decreases by √2 times

4 If the mass moment inertia of the object is increased to 4 times then what will be the effect of time period of the compound pendulum?

A Doubled

B Remains same

C Halved

D Decreases by √2 times

View Answer

Answer: Doubled

5 Calculate the time period of an object having mass moment of inertia = 100 Kg-m², mass of 10 Kg and the centre of gravity lies at a point 20 cm below the point of suspension.

A 14.1

B 15.2

C 13.3

D 12.9

View Answer

Answer: 14.1

6 Calculate the frequency of vibration in Hz of an object having mass moment of inertia = 100 Kg-m², mass of 10 Kg and the centre of gravity lies at a point 20 cm below the point of suspension.

A 0.14

B 0.15

C 0.13

D 0.07

View Answer

Answer: 0.07

7 Calculate the moment of inertia of an object having time period = 14 sec, mass of 10 Kg and the centre of gravity lies at a point 20 cm below the point of suspension.

A 94.1

B 95.2

C 93.3

D 97.4

View Answer

Answer: 97.4

8 All simple pendulums are compound pendulums.

A True

B False

View Answer

Answer: True

9 If the mass moment inertia of the object is increased to 4 times then what will be the effect of time period of the simple pendulum?

A Doubled

B Remains same

C Halved

D Decreases by √2 times

View Answer

Answer: Remains same

10 Calculate the moment of inertia of an object having time period = 14 sec, mass moment of inertia= 100 Kg-m2 and the centre of gravity lies at a point 20 cm below the point of suspension.

A 9.1

B 9.2

C 9.3

D 10.2

View Answer

Answer: 10.2

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