Theory of Machine The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as Sliding pair Spherical pair Rolling pair Turning pair Sliding pair Spherical pair Rolling pair Turning pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 45° - φ/2 α = 90° + φ α = 45° + φ/2 α = 90° - φ α = 45° - φ/2 α = 90° + φ α = 45° + φ/2 α = 90° - φ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve) (m + M)/m (m + M)/M m/(m + M) M/(m + M) (m + M)/m (m + M)/M m/(m + M) M/(m + M) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is Fc = ar - b Fc = ar Fc = ar + b Fc = a/r + b Fc = ar - b Fc = ar Fc = ar + b Fc = a/r + b ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In S.H.M., acceleration is proportional to Displacement All of these Rate of change of velocity Velocity Displacement All of these Rate of change of velocity Velocity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free transverse vibrations due to a point load acting over a simply supported shaft is equal to (where δ = Static deflection of a simply supported shaft due to the point load) 0.6253/√δ 0.5615/√δ 0.4985/√δ 0.571/√δ 0.6253/√δ 0.5615/√δ 0.4985/√δ 0.571/√δ ANSWER DOWNLOAD EXAMIANS APP
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