Theory of Machine A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become 8 fn 4 fn fn/2 2 fn 8 fn 4 fn fn/2 2 fn ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a higher pair? Sliding pair Turning pair Screw pair Belt and pulley Sliding pair Turning pair Screw pair Belt and pulley ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a simple harmonic motion, the velocity vector with respect to displacement vector Lags by 90° Is in phase Leads by 180° Leads by 90° Lags by 90° Is in phase Leads by 180° Leads by 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following mechanisms produces mathematically an exact straight line motion? Watt mechanism Tchebicheff mechanism Grasshopper mechanism Peaucellier's mechanism Watt mechanism Tchebicheff mechanism Grasshopper mechanism Peaucellier's mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Oldham’s coupling is an inversion of the kinematic chain used in Rotary engine Elliptical trammels Whitworth quick return mechanism Universal joint Rotary engine Elliptical trammels Whitworth quick return mechanism Universal joint ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A kinematic chain is known as a mechanism when Two of the links are fixed One of the links is fixed None of the links is fixed None of these Two of the links are fixed One of the links is fixed None of the links is fixed None of these ANSWER DOWNLOAD EXAMIANS APP
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