Theory of Machine The acceleration of the particle moving with simple harmonic motion is _________ at the mean position. Maximum None of these Minimum Zero Maximum None of these Minimum Zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach 180° 360° 90° 0° 180° 360° 90° 0° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frequency of oscillation of a compound pendulum is (1/2π). √[(kG² + h²)/gh] 2π. √[(kG² + h²)/gh] 2π. √[gh/(kG² + h²)] (1/2π). √[gh/(kG² + h²)] (1/2π). √[(kG² + h²)/gh] 2π. √[(kG² + h²)/gh] 2π. √[gh/(kG² + h²)] (1/2π). √[gh/(kG² + h²)] 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 = 45° - φ/2 α = 90° - φ α = 90° + φ α = 45° + φ/2 α = 45° - φ/2 α = 90° - φ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Kinematic pairs are those which have two elements that Have surface contact Have line contact Permit relative motion Are held together Have surface contact Have line contact Permit relative motion Are held together ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Higher pairs are those which have Point or line contact between the two elements when in motion Two elements that permit relative motion Surface contact between the two elements when in motion Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Two elements that permit relative motion Surface contact between the two elements when in motion Elements of pairs not held together mechanically ANSWER DOWNLOAD EXAMIANS APP
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