81. The flank of the tooth is the surface of the tooth __________ the pitch surface.
82. Whirling speed of the shaft is the speed at which
83. If the damping factor for a vibrating system is unity, then the system will be
84. The equation of motion for a vibrating system with viscous damping is $$\frac{{{d^2}x}}{{d{t^2}}} + \frac{c}{m} \times \frac{{dx}}{{dt}} + \frac{s}{m} \times x = 0.$$ If the roots of this equation are real, then the system will be
85. An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has
86. If $$\frac{\omega }{{\omega {\text{n}}}} = 2,$$ where co is the frequency of excitation and $${\omega {\text{n}}}$$ is the natural frequency of vibrations, then the transmissibility of vibration will the
87. A system of masses rotating in different parallel planes is in dynamic balance if the
88. ________ is an inversion of Double slider crank chain.
89. Which of the following is an inversion of a double slider crank chain?
90. Which of the following is an inversion of a single slider crank chain?
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