Theory of Machine A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when a is +ve and b is -ve a is +ve and b = 0 a is +ve and b is also +ve a = 0 and b is +ve a is +ve and b is -ve a is +ve and b = 0 a is +ve and b is also +ve a = 0 and b is +ve 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 Which of the following is a lower pair? Ball and socket i Piston and cylinder Both (A) and (B) above Cam and follower Ball and socket i Piston and cylinder Both (A) and (B) above Cam and follower ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Longitudinal vibrations are said to occur when the particles of a body moves 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 None of these Perpendicular to its axis ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The minimum force required to slide a body of weight W on a rough horizontal plane is W cosecθ W tanθ W sinθ W cosθ W cosecθ W tanθ W sinθ W cosθ 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 decreasing amplitude Return to equilibrium position without oscillation Oscillate with constant amplitude Oscillate with increasing time period Oscillate with decreasing amplitude Return to equilibrium position without oscillation Oscillate with constant amplitude Oscillate with increasing time period ANSWER DOWNLOAD EXAMIANS APP
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