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Engineering :: Theory of Machines

191.  Motor cycle shock sbsorbers are generally designed for
A. Partial damping B. Light damping
C. Large damping D. Critical damping
E. Resonant damping    
192.  The number of natural frequencies for three rotor system will be
A. One B. Two
C. Three D. Four
E. Six    
193.  The number of degrees of feeedom for a vibrating beam will be
A. Nil B. One
C. Two D. Four
E. Five    
194.  Crowning is done on
A. Gears B. Shafts
C. Pulleys D. Keys
E. Bearings    
195.  At node of the shaft
A. The vibrations are inimum B. The vibrations are maximum
C. The vibrations are average D. The vibrations are zero
E. None of the above    
196.  The number of nodes in shaft carrying only tow rotor at the ends will be
A. Zero B. One
C. Two D. An odd number
E. An even number    
197.  The number of nodes in a shaft carrying three rotors will be
A. Zero B. One
C. Two D. Three
E. Four    
198.  In Iocomotive operation, the swaying couple results due to
A. Use of two cylinders B. Use of double acting cylinders
C. High speeds D. Hammer blow
E. Primary disturbing force    
199.  For speed reduction in the ratio of 100 the type of gear preferred is
A. Spur gear B. Helical gear
C. Bevel gear D. Hypoid gear
E. Worm and worm wheel    
200.  Which of the following gear is not used on non-parallel, non-intersecting shafts?
A. Bevel B. Worm
C. Helical D. Hypoid
E. All of the above    

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