Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because The shafts are rotating at very high speeds Resonance is caused due to the heavy mass of the rotor The system is unbalanced Bearing centre line coincides with the axis The shafts are rotating at very high speeds Resonance is caused due to the heavy mass of the rotor The system is unbalanced Bearing centre line coincides with the axis ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship. Vertically and perpendicular Horizontally and perpendicular Horizontally and parallel Vertically and parallel Vertically and perpendicular Horizontally and perpendicular Horizontally and parallel Vertically and parallel ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Oldham's coupling is the Third inversion of double slider crank chain Second inversion of double slider crank chain Second inversion of single slider crank chain Third inversion of slider crank chain Third inversion of double slider crank chain Second inversion of double slider crank chain Second inversion of single slider crank chain Third inversion of slider crank chain ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to log(x₁.x₂) loge(x₁/x₂) x₁/x₂ log(x₁/x₂) log(x₁.x₂) loge(x₁/x₂) x₁/x₂ log(x₁/x₂) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In its simplest form, a cam mechanism consists of following number of links 4 3 2 1 4 3 2 1 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints) n = 3(l - 1) - 2j n = 4(l - 1) - 3j n = (l -1) - j n = 2(l - 1) - 2j n = 3(l - 1) - 2j n = 4(l - 1) - 3j n = (l -1) - j n = 2(l - 1) - 2j ANSWER DOWNLOAD EXAMIANS APP
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