Theory of Machine A foot step bearing and rotor of a vertical turbine form examples of Incompletely constrained motion Successfully constrained motion Completely constrained motion Partially constrained motion Incompletely constrained motion Successfully constrained motion Completely constrained motion Partially constrained motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a mechanism, the fixed instantaneous centers are those centers which Moves as the mechanism moves, but joints are of permanent nature None of the listed here Vary with the configuration of the mechanism Remain in the same place for all configurations of the mechanism Moves as the mechanism moves, but joints are of permanent nature None of the listed here Vary with the configuration of the mechanism Remain in the same place for all configurations of the mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The number of links and instantaneous centers in a reciprocating engine mechanism are 5, 4 4, 5 4, 6 4, 4 5, 4 4, 5 4, 6 4, 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The tractive force is maximum or minimum when the angle of inclination of crank with the line of stroke (θ) is equal to 90° and 180° 0° and 90° 270° and 360° 135° and 315° 90° and 180° 0° and 90° 270° and 360° 135° and 315° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of the belt for maximum power is (where m = Mass of the belt in kg per meter length) √(T/3m) (T.g)/3 √(3m/T) T/3 √(T/3m) (T.g)/3 √(3m/T) T/3 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank) m.ω².r sinθ m.ω².r cosθ m.ω².r (cos 2θ/n) m.ω².r (sin 2θ/n) m.ω².r sinθ m.ω².r cosθ m.ω².r (cos 2θ/n) m.ω².r (sin 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
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