Theory of Machine In S.H.M., the velocity vector w.r.t. displacement vector Leads by 90° Are in phase Lags by 90° Leads by 180° Leads by 90° Are in phase Lags by 90° Leads by 180° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves upwards, the governor speed First increases and then decreases Decreases Increases Remain unaffected First increases and then decreases Decreases Increases Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In an ideal machine, the output as compared to input is Equal Less May be less or more depending on efficiency More Equal Less May be less or more depending on efficiency More ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a reciprocating steam engine, which of the following forms a kinematic link? Cylinder and piston Piston rod and connecting rod Flywheel and engine frame Crankshaft and flywheel Cylinder and piston Piston rod and connecting rod Flywheel and engine frame Crankshaft and flywheel ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary 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 (sin 2θ/n) m.ω².r cosθ m.ω².r (cos 2θ/n) m.ω².r sinθ m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r (cos 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A spring controlled governor is said to be unstable when the controlling force Remains constant for all radii of rotation Increases as the radius of rotation increases Increases as the radius of rotation decreases Decreases as the radius of rotation increases Remains constant for all radii of rotation Increases as the radius of rotation increases Increases as the radius of rotation decreases Decreases as the radius of rotation increases ANSWER DOWNLOAD EXAMIANS APP
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