Motor cycle shock sbsorbers are generally designed for
A.Partial damping
B.Light damping
C.Large damping
D.Critical damping
E.Resonant damping
Category: Theory of Machines Mcqs
A stretched string of a guitar when operated is subjected to
A.Free vibrations
B.Forced torsional vibrations
C.Forced transverse vibrations
D.Damped vibrations
E.None of the above
A pair is termed as a higher pair when relative motion between two elements of the pair is
A.turning only
B.sliding only
C.rolling only
D.partly sliding and partly turning
The throw of a cam is the maximum distance of the follower from
A.Starting to finish
B.Base circle
C.Pitch circle
D.Root circle
E.Inner most circle
Which of the following is a lower pair?
A.Piston and cylinder
B.Cam and follower
C.Belt drive
D.Gear
E.None of the above
Cam size depends upon
A.Cam operating speed
B.Pitch cricle
C.Base circle
D.Prime circle
E.Outer circle
If a particle of a link has a velocity when changes both in magnitude and direction at any instant, then
A.It must have only unidirectional acceleration
B.It must have two components of acceleration e.g. centripetal, and tangential
C.It must have three components of acceleration e.g. centripetal centrifugal and tangential
D.It must have three components of acceleration e.g. centripetal, centrifugal and gravitational
E.It must have four components of acceleration e.g. centripetal, centrifugal gravitational and tangential
V belt having cross-section A is suitable for usual load of 5 HP. If 15 HP load is to be transmitted
A.Drive system may be changed
B.3 Vee belts using 3 groove pulley may be used
C.Gear system may be adopted
D.Toothed belts may be used
E.Machine arrangement may be modified
The number of natural frequencies for three rotor system will be
A.One
B.Two
C.Three
D.Four
E.Six
A vibrating system with unity as damping factor will be
A.Critically damped
B.Damped to safe limits
C.Damped to 1% of critical speed
D.Partly damped
E.Free from vibrations
