Theory of Machine
A foot step bearing and rotor of a vertical turbine form examples of

Partially constrained motion
Incompletely constrained motion
Completely constrained motion
Successfully constrained motion

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
A body is said to be under forced vibrations, when

None of these
A body vibrates under the influence of external force
No external force acts on a body, after giving it an initial displacement
There is a reduction in amplitude after every cycle of vibration

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Crowning on pulleys helps

Increase belt and pulley life
In increasing velocity ratio
For automatic adjustment of belt position so that belt runs centrally
In decreasing the slip of the belt

ANSWER DOWNLOAD EXAMIANS APP