Theory of Machine The approximate straight line mechanism is a 3 bar linkage 6 bar linkage 8 bar linkage Four bar linkage 3 bar linkage 6 bar linkage 8 bar linkage Four bar linkage ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a mechanism, the fixed instantaneous centers are those centers which 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 Moves as the mechanism moves, but joints are of permanent nature ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The partial balancing means All of these Balancing partially revolving masses Balancing partially reciprocating masses Best balancing of engines All of these Balancing partially revolving masses Balancing partially reciprocating masses Best balancing of engines ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The absolute acceleration of any point ‘P’ in a link about center of rotation ‘O’ is None of the listed here Along PO Perpendicular to PO At 45° to PO None of the listed here Along PO Perpendicular to PO At 45° to PO ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is 180° and 360° Both (A) and (B) None of these 0° and 90° 180° and 360° Both (A) and (B) None of these 0° and 90° 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 (cos 2θ/n) m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r (sin 2θ/n) m.ω².r cosθ ANSWER DOWNLOAD EXAMIANS APP
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