Theory of Machine Which of the following is an open pair? Cam and follower Ball and socket joint Journal bearing Lead screw and nut Cam and follower Ball and socket joint Journal bearing Lead screw and nut ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is h/(kG² + h²) (kG² + h²)/h h²/(kG² + h²) (kG² + h²)/h² h/(kG² + h²) (kG² + h²)/h h²/(kG² + h²) (kG² + h²)/h² ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Two systems shall be dynamically equivalent when G. of two coincides M.I. of two about an axis through e.g. is equal The mass of two are same All of these G. of two coincides M.I. of two about an axis through e.g. is equal The mass of two are same All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In gears, interference takes place when The tip of a tooth of a mating gear digs into the portion between base and root circles Gear teeth are undercut Gears do not move smoothly in the absence of lubrication Pitch of the gears is not same The tip of a tooth of a mating gear digs into the portion between base and root circles Gear teeth are undercut Gears do not move smoothly in the absence of lubrication Pitch of the gears is not same ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves downwards, the governor speed First increases and then decreases Decreases Remain unaffected Increases First increases and then decreases Decreases Remain unaffected Increases ANSWER DOWNLOAD EXAMIANS APP
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