Answer / gautam

Vibration is to and fro motion of particles from its mean position.
Hence if one particle is executing this motion then it will be transmitted
to the adjuscent particle,and the whole body will vibrate.
In that condition if any near by material ,which is elastic comes into
cotact with the vibrating body,then som kinetic energy will be
transmitted and another body will also start vibrating.
But if the body is not elastic then it may collapse or absorbe whole
kinetic energy of the vibrating body, bringing it to rest.

Answer / jophil padillo

Mechanical vibration and shock and present in varying degrees in virtually all location where equipment and people functions.The adverse effect of these disturbances range from negligible to catastrophic depending on the severity of 
the disturbance and the sensitivity of the equipment.

In ship cranes, there is a provision of providing a conveyor for the cable. There is no provision of slip ring. How is it possible?

2 Answers   L&T,

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star connection for a 3 phase induction motor gives reduced starting current.but 1.732 times the rated current during run up period if the motor was designed to run on delta. Why can't we design the motors to run on star connection instead. It will remove the starting arrangement required making the construction an operation much simpler.

1 Answers   Synergy, VR Maritime,

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L&T Marine Aptitude Questions & Answers

1 Answers  

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Explain the functions of paring disc and flow control disc in purifier and clarifier?

1 Answers  

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Difference between gate valve and globe valve?

1 Answers  

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state and describe that vibrations are transmitted from one elastic material or component to another?

2 Answers   Cinec,

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Difference between RTA, RND & RD marine diesel engine?

1 Answers  

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Difference between MAN and REVERSING SYSTEM?

1 Answers  

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What is the principal of axial pump?

1 Answers  

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What is meant by ‘superheat’?

1 Answers  

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Why self closing sounding pipes are used onboard?

1 Answers  

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how the priming is done in a centrifugal pumps?

2 Answers  

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