Theory of Machine The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove) cosecβ sinβ cosβ secβ cosecβ sinβ cosβ secβ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become 4 fn 2 fn fn/2 8 fn 4 fn 2 fn fn/2 8 fn ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The arrangement is called bevel gearing, when two __________ are connected by gears. Intersecting and coplanar shafts Non-intersecting and non-coplanar shafts Parallel and non-coplanar shafts Parallel and coplanar shafts Intersecting and coplanar shafts Non-intersecting and non-coplanar shafts Parallel and non-coplanar shafts Parallel and coplanar shafts ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Instantaneous center of rotation of a link in a four bar mechanism lies on A point obtained by intersection on extending adjoining links Left side pivot of this link Right side pivot of this link Can’t occur A point obtained by intersection on extending adjoining links Left side pivot of this link Right side pivot of this link Can’t occur ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a mass of a critically damped single degree of freedom system is deflected from its equilibrium position and released, then it will Oscillate with increasing time period Return to equilibrium position without oscillation Oscillate with constant amplitude Oscillate with decreasing amplitude Oscillate with increasing time period Return to equilibrium position without oscillation Oscillate with constant amplitude Oscillate with decreasing amplitude ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Torsional vibrations are said to occur when the particles of a body moves None of these Perpendicular to its axis In a circle about its axis Parallel to its axis None of these Perpendicular to its axis In a circle about its axis Parallel to its axis ANSWER DOWNLOAD EXAMIANS APP
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