Engineering Machine - Engineering Machine objective questions and answers
16. Energy is defined as.......
A.rate of doing work
B.capacity of doing work
C.power of doing work
D.all of the above
E.none of the above
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B.capacity of doing work
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17. Moment of inertia of a body does not depend upon.......
A.angular velocity of body
B.mass of the body
C.distribution of mass in the body
D.axis of rotation of the body
E.depends on all the above
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18. Which of the following have same units.........
A.momentum and impulse
B.stress and pressure
C.work and kinetic energy
D.kinetic energy and potential energy
E.all of the above
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19. FOR a machine to be self-locking, its efficiency should be......
A.100%
B.less than 67%
C.less than 50%
D.more than 50%
E.none of the above
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20. The C.G. of a plane lamina will not be at its geometrical centre in the case of a.......
A.right angled triangle
B.equilateral triangle
C.square
D.circle
E.rectangle
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