Theory of Machine When the two elements of a pair have __________ when in motion, it is said to a lower pair. None of these Line or point contact Body contact Surface contact None of these Line or point contact Body contact Surface contact ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is (l₁ + l₂ + l₃)/3 l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³ l₁ + l₂ + l₃ l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴ (l₁ + l₂ + l₃)/3 l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³ l₁ + l₂ + l₃ l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A) vBA × AB vBA /AB v²BA v²BA /AB vBA × AB vBA /AB v²BA v²BA /AB ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In order to double the period of a simple pendulum, the length of the string should be Quadrupled None of these Halved Doubled Quadrupled None of these Halved Doubled ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A governor is said to be stable, if the Radius of rotation of balls increases as the equilibrium speed decreases Radius of rotation of balls decreases as the equilibrium speed increases Radius of rotation of balls increases as the equilibrium speed increases Radius of rotation of balls decreases as the equilibrium speed decreases Radius of rotation of balls increases as the equilibrium speed decreases Radius of rotation of balls decreases as the equilibrium speed increases Radius of rotation of balls increases as the equilibrium speed increases Radius of rotation of balls decreases as the equilibrium speed decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is 180° 270° 90° 0° 180° 270° 90° 0° ANSWER DOWNLOAD EXAMIANS APP
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