Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 6 Hz 3 Hz 3π Hz 6π Hz 6 Hz 3 Hz 3π Hz 6π Hz ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is an example of sliding pair? Lead screw of a lathe with nut Ball and a socket joint Piston and cylinder of a reciprocating steam engine Shaft with collars at both ends fitted into a circular hole Lead screw of a lathe with nut Ball and a socket joint Piston and cylinder of a reciprocating steam engine Shaft with collars at both ends fitted into a circular hole ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will Become equal to 2R Become equal to R/4 Remain same as before Become equal to R/2 Become equal to 2R Become equal to R/4 Remain same as before Become equal to R/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frequency of oscillation at compared to earth will be 2.44 times more 6 times more 2.44 times less 6 times less 2.44 times more 6 times more 2.44 times less 6 times less ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which gear is used for connecting two coplanar and intersecting shafts? Helical gear None of these Spur gear Bevel gear Helical gear None of these Spur gear Bevel gear ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a mass of a critically damped single degree of freedom system is deflected from its equilibrium position and released, then it will Return to equilibrium position without oscillation Oscillate with constant amplitude Oscillate with decreasing amplitude Oscillate with increasing time period Return to equilibrium position without oscillation Oscillate with constant amplitude Oscillate with decreasing amplitude Oscillate with increasing time period ANSWER DOWNLOAD EXAMIANS APP
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