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The balancing of rotating and reciprocating parts of an engine is necessary when...

Q.  
The balancing of rotating and reciprocating parts of an engine is necessary when it runs at


Answer & Explanation

At high speed vibrations are more.

Thus correct option is: C.

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More Questions Dynamics of Machinery:

Q.  
At which angle primary unbalanced force in reciprocating engine mechanism is maximum?

A. 0°

B. 90°

C. 270°

D. All of the above


Answer & Explanation

Q.  
The mass used to balance the mass defect is known as ______

A. Balancing mass

B. Defect mass

C. Replacement mass

D. Fixing mass


Answer & Explanation

Q.  
which one of the followings is a type of vibration control

A. Active vibration control

B. Passive vibration control

C. Semi active vibration control

D. Any of the above


Answer & Explanation

Q.  
Transmissibility is defined as the ratio of

A. Force transmitted to support and excitation force

B. Displacement amplitude of mass and displacement amplitude of support

C. Both options (1) and (2)

D. Force transmitted to support and inertia force


Answer & Explanation
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