Theory of Machine Sense of tangential acceleration of a link Is same as that of velocity Is perpendicular to that of velocity Could be either same or opposite to velocity Is opposite to that of velocity Is same as that of velocity Is perpendicular to that of velocity Could be either same or opposite to velocity Is opposite to that of velocity 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) (y/x) (r₁ - r₂) (y/x) (r₁ + r₂) (x/y) (r₁ - r₂) (x/y) (r₁ + r₂) (y/x) (r₁ - r₂) (y/x) (r₁ + r₂) (x/y) (r₁ - r₂) (x/y) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the speed of the engine fluctuates continuously above and below the mean speed, the governor is said to be Stable Hunt Unstable Isochronous Stable Hunt Unstable Isochronous ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine At the nodal point in a shaft, the amplitude for torsional vibration will be Infinity Maximum Minimum Zero Infinity Maximum Minimum Zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will Become equal to R/4 Become equal to R/2 Remain same as before Become equal to 2R Become equal to R/4 Become equal to R/2 Remain same as before Become equal to 2R ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A ball and a socket forms a Screw pair Rolling pair Turning pair Spherical pair Screw pair Rolling pair Turning pair Spherical pair ANSWER DOWNLOAD EXAMIANS APP
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