Theory of Machine Which of the following mechanism is an approximate straight line motion mechanism? Grasshopper mechanism Watt's mechanism All of these Robert's mechanism Grasshopper mechanism Watt's mechanism All of these Robert's mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient. Directly proportional to Independent of Equal to Inversely proportional to Directly proportional to Independent of Equal to Inversely proportional to ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be Unstable None of the listed here Stable Isochronous Unstable None of the listed here Stable Isochronous ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The steering of a ship means Turning of a complete ship in a curve towards right or left, while it moves forward Movement of a complete ship up and down in vertical plane about transverse axis None of these Rolling of a complete ship sideways Turning of a complete ship in a curve towards right or left, while it moves forward Movement of a complete ship up and down in vertical plane about transverse axis None of these Rolling of a complete ship sideways ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2 mm 2.50 mm 2.22 mm 3.0 mm 2 mm 2.50 mm 2.22 mm 3.0 mm 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 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) m.ω².r (cos 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
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