302) A machine mounted on a single coil spring has a period of free vibration of t_p . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system wil

304) If the number of links in a mechanism are equal to l, then the number of possible inversions are equal to

305) Effort of a governor is the

306) The pressure angle for involute gears depends upon the size of teeth.

307) The maximum displacement of a body, from its mean position is called amplitude.