Theory of Machine When the speed of the engine fluctuates continuously above and below the mean speed, the governor is said to be Unstable Hunt Isochronous Stable Unstable Hunt Isochronous Stable ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following mechanisms produces mathematically an exact straight line motion? Peaucellier's mechanism Watt mechanism Tchebicheff mechanism Grasshopper mechanism Peaucellier's mechanism Watt mechanism Tchebicheff mechanism Grasshopper mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Torsional vibrations are said to occur when the particles of a body moves Parallel to its axis Perpendicular to its axis In a circle about its axis None of these Parallel to its axis Perpendicular to its axis In a circle about its axis None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For dynamic balancing of a shaft The net couple due to the dynamic forces acting on the shaft is equal to zero The net dynamic force acting on the shaft is equal to zero None of these Both (A) and (B) The net couple due to the dynamic forces acting on the shaft is equal to zero The net dynamic force acting on the shaft is equal to zero None of these Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A disturbing mass m₁ attached to the rotating shaft may be balanced by a single mass m₂ attached in the same plane of rotation as that of m₁, such that (where r₁ and r₂ are the radii of rotation of m₁ and m₂ respectively) None of these m₁ m₂ = r₁ r₂ m₁ r₁ = m₂ r₂ m₁ r₂ = m₂ r₁ None of these m₁ m₂ = r₁ r₂ m₁ r₁ = m₂ r₂ m₁ r₂ = m₂ r₁ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever) (r₁ - r₂) (x/y) (r₁ - r₂) (y/x) (r₁ + r₂) (x/y) (r₁ + r₂) (y/x) (r₁ - r₂) (x/y) (r₁ - r₂) (y/x) (r₁ + r₂) (x/y) (r₁ + r₂) (y/x) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS