Engineering Machine - Engineering Machine objective questions and answers


16. The apparent weight of a man in moving lift is less than his real weight when it is going down with.......


   A.uniform speed

   B.an acceleration

   C.some linear momentum

   D.retardation

   E.none of the above


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B.an acceleration

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17. In simple harmonic motion, accelration of a particle is proportional to.......


   A.rate of change of velocity

   B.displacement

   C.velocity

   D.direction

   E.square of velocity


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B.displacement

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18. The first law of motion provides the definition of.........


   A.momentum

   B.force

   C.acceleration

   D.nergy

   E.none of the above


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B.force

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19. The type of motion when the acceleration is proportional to displacement is called......


   A.translation

   B.rotational

   C.gyroscopic

   D.simple harmonic

   E.noner of the above


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D.simple harmonic

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20. The enegry of damped oscillator.......


   A.decreases linearly with time

   B.increases linearly with time

   C.decreases exponentially with time

   D.increases exponentially with time

   E.remains constant with time


✔ View Answer


C.decreases exponentially with time

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