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 C.G. of a link in any mechanism would experience No acceleration Angular acceleration Both angular and linear accelerations Linear acceleration No acceleration Angular acceleration Both angular and linear accelerations Linear acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints) n = 3(l - 1) - 2j n = 4(l - 1) - 3j n = (l -1) - j n = 2(l - 1) - 2j n = 3(l - 1) - 2j n = 4(l - 1) - 3j n = (l -1) - j n = 2(l - 1) - 2j ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two elements of a pair are said to form a _________ when they permit relative motion between them. Sliding pair Open pair Kinematic pair None of these Sliding pair Open pair Kinematic pair None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is(Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing) ½μWR ¾μWR μwr ²/₃ μWR ½μWR ¾μWR μwr ²/₃ μWR ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The sense of Coriolis component is such that it Leads the sliding velocity vector by 90° Lags the sliding velocity vector by 90° Is along the sliding velocity vector Leads the sliding velocity vector by 180° Leads the sliding velocity vector by 90° Lags the sliding velocity vector by 90° Is along the sliding velocity vector Leads the sliding velocity vector by 180° ANSWER DOWNLOAD EXAMIANS APP
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