Theory of Machine The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped. None of these Equal Real Complex conjugate None of these Equal Real Complex conjugate ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The sense of Coriolis component is such that it Is along the sliding velocity vector Leads the sliding velocity vector by 180° Lags the sliding velocity vector by 90° Leads the sliding velocity vector by 90° Is along the sliding velocity vector Leads the sliding velocity vector by 180° Lags the sliding velocity vector by 90° Leads the sliding velocity vector by 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is 1 4 2 3 1 4 2 3 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Under logarithmic decrement, the amplitude of successive vibrations are In arithmetic progression In geometric progression Constant In logarithmic progression In arithmetic progression In geometric progression Constant In logarithmic progression ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to π One Zero π/2 π One Zero π/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the Clearance between journal and bearing Radius of journal Angular velocity of journal Magnitude of the forces on journal Clearance between journal and bearing Radius of journal Angular velocity of journal Magnitude of the forces on journal ANSWER DOWNLOAD EXAMIANS APP
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