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, centre of gravity of the cam and cam speed Total lift, total angle of lift, minimum radius of 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, centre of gravity of the cam and cam speed Total lift, total angle of lift, minimum radius of cam and cam speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The purpose of a link is to All of these Guide other links Act as a support Transmit motion All of these Guide other links Act as a support Transmit motion 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 = 90° - φ 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 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in All of these Torsional vibrations Longitudinal vibrations Transverse vibrations All of these Torsional vibrations Longitudinal vibrations Transverse vibrations ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O) ω₁.ω₂.r (ω₁ - ω₂)2r (ω₁ + ω₂)r (ω₁ - ω₂)r ω₁.ω₂.r (ω₁ - ω₂)2r (ω₁ + ω₂)r (ω₁ - ω₂)r ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the below are inversions of slider crank mechanism?1. Oscillating cylinder engine mechanism2. Toggle mechanism3. Radial cylinder engine mechanism4. Quick return mechanism 1, 3 and 4 1, 2 and 4 1, 2 and 3 2, 3 and 4 1, 3 and 4 1, 2 and 4 1, 2 and 3 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
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