Machine Design For low and moderate speed engines, the cam follower should move with Uniform acceleration and retardation Uniform velocity Simple harmonic motion Cycloidal motion Uniform acceleration and retardation Uniform velocity Simple harmonic motion Cycloidal motion ANSWER DOWNLOAD EXAMIANS APP
Machine Design For crank shaft bearings, the ratio of the length of the journal to its diameter is_________. None of these Greater than unity Less than unity Equal to 1 None of these Greater than unity Less than unity Equal to 1 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket) p = D sin (90°/T) p = D sin (360°/T) p = D sin (120°/T) p = D sin (180°/T) p = D sin (90°/T) p = D sin (360°/T) p = D sin (120°/T) p = D sin (180°/T) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material) (p - d) t.σt p.d.σt p.t.σt (p - d) t.σt p.d.σt p.t.σt ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are provided with a cage To reduce friction To prevent the lubricant from flowing out To facilitate slipping of balls To maintain the balls at a fixed distance apart To reduce friction To prevent the lubricant from flowing out To facilitate slipping of balls To maintain the balls at a fixed distance apart ANSWER DOWNLOAD EXAMIANS APP
Machine Design The objective of 'crowning' of the flat pulleys of belt drive is to Prevent the belt from running off the pulley Prevent the belt joint from damaging the belt surface Increase the belt velocity Increase the power transmission capacity Prevent the belt from running off the pulley Prevent the belt joint from damaging the belt surface Increase the belt velocity Increase the power transmission capacity ANSWER DOWNLOAD EXAMIANS APP
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