Theory of Machine The periodic time is given by (where ω = Angular velocity of the particle in rad/s) 2π/ω ω × 2π ω/2π π/ω 2π/ω ω × 2π ω/2π π/ω ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by 2ECS² 2E²CS EC S/2 2ECS 2ECS² 2E²CS EC S/2 2ECS ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the same direction as that of wheels, men due to centrifugal force The reaction on the outer wheels increases and on the inner wheels decreases The reaction on me inner wheels increases and on the outer wheels decreases The reaction on the front wheels increases and on the rear wheels decreases The reaction on the rear wheels increases and on the front wheels decreases The reaction on the outer wheels increases and on the inner wheels decreases The reaction on me inner wheels increases and on the outer wheels decreases The reaction on the front wheels increases and on the rear wheels decreases The reaction on the rear wheels increases and on the front wheels decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation l = (2/3).(j + 2) apply only to kinematic chains in which lower pairs are used. This may be used to kinematic chains in which higher pairs are used, but each higher pair may be taken as equivalent to Any one of these Two lower pairs and one additional link Two lower pairs and two additional links One lower pair and two additional links Any one of these Two lower pairs and one additional link Two lower pairs and two additional links One lower pair and two additional links 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 (l₁ + l₂ + l₃)/3 l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴ l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³ l₁ + l₂ + l₃ (l₁ + l₂ + l₃)/3 l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴ l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The essential condition of placing the two masses, so that the system becomes dynamically equivalent, is (where l₁ and l₂ = Distance of two masses from the centre of gravity of the body, and kG = Radius of gyration of the body) l₁l₂ = kG l₂ = kG l₁l₂ = kG² l₁ = kG l₁l₂ = kG l₂ = kG l₁l₂ = kG² l₁ = kG ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS