Engineering Machine - Engineering Machine objective questions and answers

6. A ship will sink if it does not displace water equal to its own.......

   A.volume

   B.density

   C.suface area

   D.weight

   E.all of the above

7. The range of projectile is maximum when the angle of projection is.......

   A.45*

   B.30*

   C.60*

   D.22 1/2*

   E.none of above

8. The freqency of a vibrating string is.........

   A.directly proportional to square of the tension

   B.inversely proportional to square of the tension

   C.inversely proportional to the diameter of the string

   D.directly proportional to the square root of the mass per unit length

   E.inversely proportional to the square root of the mass parameter for unit length

9. The escape velocity of a body on earth......

   A.increases with the increase of its mass

   B.decreases with the increase of its mass

   C.remains unchanged with variation of mass

   D.varies as the square of the chnage in mass

   E.varies as the square root of change in mass

10. 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

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