1. For high-speed engines, the cam follower should move with-
A. uniform acceleration and retardation
B. simple harmonic motion
C. cycloidal motion
D. uniform velocity
2. The gears are termed as medium velocity gears if their peripheral velocity is –
A. 1 – 3 m/s
B. 3 – 15 m/s
C. 15 – 30 m/s
D. 30 – 50 m/s
3. The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.
A. less than
B. more than
C. equal to
D. Can’t say
4. The Whit-worth quick return motion mechanism is formed in a slider-crank chain when the –
A. slider is a fixed link
B. longest link is a fixed link
C. smallest link is a fixed link
D. coupler link is fixed
5. In order to balance the reciprocating masses –
A. primary forces and couples must be balanced
B. secondary forces and couples must be balanced
C. Both (A) and (B)
D. None of these
