Theory of Machine If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach 360° 90° 0° 180° 360° 90° 0° 180° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In involute gears, the pressure angle is Always constant Dependent on the size of gears Always variable Dependent on the size of teeth Always constant Dependent on the size of gears Always variable Dependent on the size of teeth 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 = 90° + φ α = 45° - φ/2 α = 45° + φ/2 α = 90° - φ α = 90° + φ α = 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the particles of a body moves perpendicular to its axis, then the body is said to have Torsional vibration Transverse vibration Longitudinal vibration None of these Torsional vibration Transverse vibration Longitudinal vibration None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a circular arc cam with roller follower, the acceleration in any position of the lift will depend only upon Mass of cam follower linkage, spring stiffness and cam speed Radius of circular arc, cam speed, location of centre of circular arc and roller diameter Total lift, total angle of lift, minimum radius of cam and cam speed Total lift, centre of gravity of the cam and cam speed Mass of cam follower linkage, spring stiffness and cam speed Radius of circular arc, cam speed, location of centre of circular arc and roller diameter Total lift, total angle of lift, minimum radius of cam and cam speed Total lift, centre of gravity of the cam and cam speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Frequency of vibrations is usually expressed in Number of cycles per second None of these Number of cycles per minute Number of cycles per hour Number of cycles per second None of these Number of cycles per minute Number of cycles per hour ANSWER DOWNLOAD EXAMIANS APP
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