Theory of Machine In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to 0.8 0.4 0.6 0.2 0.8 0.4 0.6 0.2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The danger of breakage and vibration is maximum None of these Above the critical speed Below the critical speed Near the critical speed None of these Above the critical speed Below the critical speed Near the critical speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A reed type tachometer use the principle of Longitudinal vibration Damped free vibration Torsional vibration Transverse vibration Longitudinal vibration Damped free vibration Torsional vibration Transverse vibration 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 = 45° - φ/2 α = 90° + φ α = 90° - φ α = 45° + φ/2 α = 45° - φ/2 α = 90° + φ α = 90° - φ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap. Corners Inner edge Outer edge None of these Corners Inner edge Outer edge None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is an example of a higher pair? Belt and rope drive Ball and roller bearing All of the listed here Toothed gearing Belt and rope drive Ball and roller bearing All of the listed here Toothed gearing ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS