Theory of Machine The periodic time of one oscillation for a simple pendulum is 2π. √(l/g) (1/2π). √(g/l) 2π. √(g/l) (1/2π). √(l/g) 2π. √(l/g) (1/2π). √(g/l) 2π. √(g/l) (1/2π). √(l/g) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation between number of links (l) and number of joints (j) in a kinematic chain is l = (3/4).(j + 3) l = (1/2).(j + 2) l = j + 4 l = (2/3).(j + 2) l = (3/4).(j + 3) l = (1/2).(j + 2) l = j + 4 l = (2/3).(j + 2) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to To start the locomotive quickly Minimize the effect of secondary forces Minimize the effect of primary forces Have perfect balancing To start the locomotive quickly Minimize the effect of secondary forces Minimize the effect of primary forces Have perfect balancing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, the acceleration of the piston is _________ when the crank OC and connecting rod PC are at right angles to each other. Zero Infinity Any +ve value Any -ve value Zero Infinity Any +ve value Any -ve value ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In gears, interference takes place when Gear teeth are undercut Gears do not move smoothly in the absence of lubrication The tip of a tooth of a mating gear digs into the portion between base and root circles Pitch of the gears is not same Gear teeth are undercut Gears do not move smoothly in the absence of lubrication The tip of a tooth of a mating gear digs into the portion between base and root circles Pitch of the gears is not same ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a Self-closed pair Lower pair Higher pair Force-closed pair Self-closed pair Lower pair Higher pair Force-closed pair ANSWER DOWNLOAD EXAMIANS APP
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