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 maximum fluctuation of speed is the Difference of the maximum and minimum speeds Difference of minimum fluctuation of speed and the mean speed Variations of speed above and below the mean resisting torque line Sum of maximum and minimum speeds Difference of the maximum and minimum speeds Difference of minimum fluctuation of speed and the mean speed Variations of speed above and below the mean resisting torque line Sum of maximum and minimum speeds ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft) 2π qI 1/2π (1/2π). √(q/I) 2π. √(q/I) 2π qI 1/2π (1/2π). √(q/I) 2π. √(q/I) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Klein's construction is useful to determine Acceleration of various parts Displacement of various parts Velocity of various parts Angular acceleration of various parts Acceleration of various parts Displacement of various parts Velocity of various parts Angular acceleration of various parts ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted by a disc or plate clutch is same as that of Conical pivot bearing Truncated conical pivot bearing Flat collar bearing Flat pivot bearing Conical pivot bearing Truncated conical pivot bearing Flat collar bearing Flat pivot bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts? Kinetics Applied mechanics Theory of machines Mechanisms Kinetics Applied mechanics Theory of machines Mechanisms ANSWER DOWNLOAD EXAMIANS APP
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