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 2 fn 4 fn fn/2 8 fn 2 fn 4 fn fn/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Kinematic pairs are those which have Surface contact between the two elements when in motion Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Two elements that permit relative motion Surface contact between the two elements when in motion Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Two elements that permit relative motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the body is suspended at the point of suspension, its periodic time and frequency will be ________ as compared to the body suspended at the point of percussion. None of these Four times Two times Same None of these Four times Two times Same ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is h/(kG² + h²) (kG² + h²)/h² h²/(kG² + h²) (kG² + h²)/h h/(kG² + h²) (kG² + h²)/h² h²/(kG² + h²) (kG² + h²)/h ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following statement is correct as regard to the difference between a machine and a structure? The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only All of these A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only All of these A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The lower pair is a Open pair Sliding pair Point contact pair Closed pair Open pair Sliding pair Point contact pair Closed pair ANSWER DOWNLOAD EXAMIANS APP
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