Theory of Machine The secondary unbalanced force is __________ the primary unbalanced force. One-half n times 1/n times Two-third One-half n times 1/n times Two-third 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 (sin 2θ/n) 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) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Flexible coupling is used because It prevents shock transmission and eliminates stress reversals It transmits shocks gradually It is easy to engage and disengage It is easy to disassemble It prevents shock transmission and eliminates stress reversals It transmits shocks gradually It is easy to engage and disengage It is easy to disassemble ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle) [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) cosφ]/2 [(r² + R²) sinφ]/2 [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) cosφ]/2 [(r² + R²) sinφ]/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is an inversion of a double slider crank chain? Elliptical trammel Oldham's coupling All of these Scotch yoke mechanism Elliptical trammel Oldham's coupling All of these Scotch yoke mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Tangential acceleration direction is Perpendicular to angular velocity Opposite to angular velocity May be any one of these Along the angular velocity Perpendicular to angular velocity Opposite to angular velocity May be any one of these Along the angular velocity ANSWER DOWNLOAD EXAMIANS APP
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