Theory of Machine For dynamic balancing of a shaft The net dynamic force acting on the shaft is equal to zero None of these The net couple due to the dynamic forces acting on the shaft is equal to zero Both (A) and (B) The net dynamic force acting on the shaft is equal to zero None of these The net couple due to the dynamic forces acting on the shaft is equal to zero Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Maximum fluctuation of energy in a flywheel is equal to [where I = Mass moment of inertia of the flywheel, E = Maximum fluctuation of energy, CS = Coefficient of fluctuation of speed, and ω = Mean angular speed = (ω₁ + ω₂)/2] I.ω².CS 2.E.CS All of these I.ω.(ω₁ - ω₂) I.ω².CS 2.E.CS All of these I.ω.(ω₁ - ω₂) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Pitch point on a cam is The point on cam pitch curve having the minimum pressure angle Any point on pitch curve The point on cam pitch curve having the maximum pressure angle Any point on pitch circle The point on cam pitch curve having the minimum pressure angle Any point on pitch curve The point on cam pitch curve having the maximum pressure angle Any point on pitch circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship. Vertically and perpendicular Horizontally and parallel Vertically and parallel Horizontally and perpendicular Vertically and perpendicular Horizontally and parallel Vertically and parallel Horizontally and perpendicular ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The acceleration of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by ω². (r₁ - r₂). (1 - sin² θ) ω². (r₁ + r₂). [(2 - cos² θ)/cos³ θ] ω². (r₁ r₂). (1 - cos² θ) ω². (r₁ + r₂). (1 + cos² θ) ω². (r₁ - r₂). (1 - sin² θ) ω². (r₁ + r₂). [(2 - cos² θ)/cos³ θ] ω². (r₁ r₂). (1 - cos² θ) ω². (r₁ + r₂). (1 + cos² θ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft) (1/2π). √(q/I) 2π. √(q/I) 2π qI 1/2π (1/2π). √(q/I) 2π. √(q/I) 2π qI 1/2π ANSWER DOWNLOAD EXAMIANS APP
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