Theory of Machine The unbalanced primary forces in a reciprocating engine are Balanced completely Balanced partially Not balanced Balanced by secondary forces Balanced completely Balanced partially Not balanced Balanced by secondary forces 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 (cos 2θ/n) m.ω².r sinθ m.ω².r cosθ m.ω².r (sin 2θ/n) m.ω².r (cos 2θ/n) m.ω².r sinθ m.ω².r cosθ m.ω².r (sin 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of sliding of meshing gear teeth is(Where ω₁ and ω₂ are angular velocities of meshing gears and ‘y’ is distance between point of contact and the pitch point) (ω₁ + ω₂) y (ω₁ + ω₂)/y (ω₁/ω₂) y (ω₁ × ω₂) y (ω₁ + ω₂) y (ω₁ + ω₂)/y (ω₁/ω₂) y (ω₁ × ω₂) y ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a higher pair? Belt and pulley Sliding pair Screw pair Turning pair Belt and pulley Sliding pair Screw pair Turning pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of maximum fluctuation of speed to the mean speed is called Fluctuation of speed None of these Maximum fluctuation of speed Coefficient of fluctuation of speed Fluctuation of speed None of these Maximum fluctuation of speed Coefficient of fluctuation of speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A circular bar moving in a round hole is an example of Incompletely constrained motion Partially constrained motion Completely constrained motion Successfully constrained motion Incompletely constrained motion Partially constrained motion Completely constrained motion Successfully constrained motion ANSWER DOWNLOAD EXAMIANS APP
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