Theory of Machine
Longitudinal vibrations are said to occur when the particles of a body moves

None of these
Perpendicular to its axis
In a circle about its axis
Parallel to its axis

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The inversion of a mechanism is

Changing of a higher pair to a lower pair
Turning its upside down
Obtained by fixing different links in a kinematic chain
Obtained by reversing the input and output motion

ANSWER DOWNLOAD EXAMIANS APP